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File252 - Sleep state misperception mispercieved2014-062017-01

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

DocumentWake high-density electroencephalographic spatiospectral signatures of insomnia2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.02
Location: SEC PCA 252/12
Title:
Wake high-density electroencephalographic spatiospectral signatures of insomnia
Publication year: 2016
URL:
http://www.journalsleep.org/ViewAbstract.aspx?pid=30586
Abstract/Results: ABSTRACT:
STUDY OBJECTIVES:
Although daytime complaints are a defining characteristic of insomnia, most EEG studies evaluated sleep only. We used high-density electroencephalography to investigate wake resting state oscillations characteristic of insomnia disorder (ID) at a fine-grained spatiospectral resolution.
METHODS:
A case-control assessment during eyes open (EO) and eyes closed (EC) was performed in a laboratory for human physiology. Participants (n = 94, 74 female, 21–70 y) were recruited through www.sleepregistry.nl: 51 with ID, according to DSM-5 and 43 matched controls. Exclusion criteria were any somatic, neurological or psychiatric condition. Group differences in the spectral power topographies across multiple frequencies (1.5 to 40 Hz) were evaluated using permutation-based inference with Threshold-Free Cluster-Enhancement, to correct for multiple comparisons.
RESULTS:
As compared to controls, participants with ID showed less power in a narrow upper alpha band (11–12.7 Hz, peak: 11.7 Hz) over bilateral frontal and left temporal regions during EO, and more power in a broad beta frequency range (16.3–40 Hz, peak: 19 Hz) globally during EC. Source estimates suggested global rather than cortically localized group differences.
CONCLUSIONS:
The widespread high power in a broad beta band reported previously during sleep in insomnia is present as well during eyes closed wakefulness, suggestive of a round-the-clock hyperarousal. Low power in the upper alpha band during eyes open is consistent with low cortical inhibition and attentional filtering. The fine-grained HD-EEG findings suggest that, while more feasible than PSG, wake EEG of short duration with a few well-chosen electrodes and frequency bands, can provide valuable features of insomnia.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Colombo, M.
Secondary author(s):
Ramautar, J., Wei. Y., Gomez-Herrero, G., Stoffers, D., Wassing, R., Benjamins, J. S., Tagliazucchi, E., van der Werf, Y., Cajochen, C., Van Someren, E.
Document type:
Article
Number of reproductions:
1
Reference:
Colombo, M., Ramautar, J., Wei. Y., Gomez-Herrero, G., Stoffers, D., Wassing, R., Benjamins, J. S., Tagliazucchi, E., van der Werf, Y., Cajochen, C., & Van Someren, E. (2016). Wake high-density electroencephalographic spatiospectral signatures of insomnia. Sleep, 39(5), 1015-1027. doi: 10.5665/sleep.5744
2-year Impact Factor: 4.923|2016
Times cited: 32|2022-03-08
Indexed document: Yes
Quartile: Q1
Keywords: Insomnia

DocumentI keep a close watch on this heart of mine: increased interoception in insomnia2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.03
Location: SEC PCA 252/12
Title:
I keep a close watch on this heart of mine: increased interoception in insomnia
Publication year: 2016
URL:
https://www.ncbi.nlm.nih.gov/pubmed/27634787
Abstract/Results: ABSTRACT:
STUDY OBJECTIVES:
Whereas both insomnia and altered interoception are core symptoms in affective disorders, their neural mechanisms remain insufficiently understood and have not previously been linked. Insomnia Disorder (ID) is characterized by sensory hypersensitivity during wakefulness and sleep. Previous studies on sensory processing in ID addressed external stimuli only, but not interoception. Interoceptive sensitivity can be studied quantitatively by measuring the cerebral cortical response to one's heartbeat (heartbeat-evoked potential, HEP). We here investigated whether insomnia is associated with increased interoceptive sensitivity as indexed by the HEP amplitude.
METHODS:
Sixty-four participants aged 21-70 years were recruited through www.sleepregistry.nl including 32 people suffering from ID and 32 age- and sex-matched controls without sleep complaints. HEPs were obtained from resting-state high-density electroencephalography (HD-EEG) recorded during evening wakeful rest in eyes-open (EO) and eyes-closed (EC) conditions of 5-minute duration each. Significance of group differences in HEP amplitude and their topographical distribution over the scalp were assessed by means of cluster-based permutation tests.
RESULTS:
In particular during EC, and to a lesser extent during EO, people with ID had a larger amplitude late HEP component than controls at frontal electrodes 376-500 ms after the R-wave peak. Source localization suggested increased neural activity time-locked to heartbeats in people with ID mainly in anterior cingulate/medial frontal cortices.
CONCLUSIONS:
People with insomnia show insufficient adaptation of their brain responses to the ever-present heartbeats. Abnormalities in the neural circuits involved in interoceptive awareness including the salience network may be of key importance to the pathophysiology of insomnia.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Wei, Y.
Secondary author(s):
Ramautar, J., Colombo, M., Stoffers, D., Gomez-Herrero, G., van der Meijden, W. P., Te Lindert, B. H., van der Werf, Y., Van Someren, E.
Document type:
Article
Number of reproductions:
1
Reference:
Wei, Y., Ramautar, J., Colombo, M., Stoffers, D., Gomez-Herrero, G., van der Meijden, W. P., Te Lindert, B. H., van der Werf, Y., & Van Someren, E. (2016). I keep a close watch on this heart of mine: increased interoception in insomnia. Sleep, 39(12), 2113-2124. doi: doi: 10.5665/sleep.6308
2-year Impact Factor: 4.923|2016
Times cited: 37|2022-03-08
Indexed document: Yes
Quartile: Q1
Keywords: Insomnia disorder / Interoception / Heartbeat-evoked potential / Event-related potential / High-density EEG / Hyperarousal / Resting state / Salience network

DocumentFinal report - Sleep state misperception mispercieved2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.01
Location: SEC PCA 252/12
Title:
Final report - Sleep state misperception mispercieved
Publication year: 2016
URL:
https://www.bial.com/imagem/Bolsa%2025212.pdf
Abstract/Results: ABSTRACT:
BACKGROUND
Whereas psychophysiological insomnia is the most common health complaint and has serious consequences, the neural correlates of altered perception and consciousness are insufficiently known.
AIM
We here aimed to evaluate electroencephalographic (EEG) markers of hyperarousal, cortical inhibition and attentional filtering during resting state.
METHOD
High-density EEG and electrocardiography (ECG) were recorded in up to 51 people complaining about insomnia and 43 matched controls. Analyses including source estimation quantified the spatiotemporal, spectral, and long-range temporal correlation (LRTC) properties of the EEG during resting state, including Heartbeat Evoked Potentials (HEP).
RESULTS
People that complain about insomnia showed less power in a narrow upper alpha band around 11.7 Hz over bilateral frontal and left temporal regions. They moreover showed more power in a broad beta frequency range (16.3-40 Hz) across the scalp. In addition, they showed a larger amplitude late HEP component than controls at frontal electrodes 376-500 ms after the R-wave peak in anterior cingulate/medial frontal cortices. Finally, individuals who experienced worse sleep quality had stronger LRTC.
CONCLUSIONS
The findings suggest hyperarousal, insufficient cerebral cortical inhibition and attentional filtering, and insufficient interoceptive adaptation of their brain responses to the ever-present heartbeats. The findings provide insight into the neural correlates of sleep complaints including enhanced awareness that could underlie sleep state misperception.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Document type:
Final report
Number of reproductions:
1
Indexed document:
No
Keywords: Psychophysiological insomnia / High-density EEG / Sleep misperception / Consciousness

DocumentMore severe insomnia complaints in people with stronger long-range temporal correlations in wake resting-state EEG2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.04
Title: More severe insomnia complaints in people with stronger long-range temporal correlations in wake resting-state EEG
Publication year: 2016
URL:
http://journal.frontiersin.org/article/10.3389/fphys.2016.00576/full
Abstract/Results: ABSTRACT:
The complaints of people suffering from Insomnia Disorder (ID) concern both sleep and daytime functioning. However, little is known about wake brain temporal dynamics in people with ID. We therefore assessed possible alterations in Long-Range Temporal Correlations (LRTC) in the amplitude fluctuations of band-filtered oscillations in electroencephalography (EEG) recordings. We investigated whether LRTC differ between cases with ID and matched controls. Within both groups, we moreover investigated whether individual differences in subjective insomnia complaints are associated with LRTC. Resting-state high-density EEG (256-channel) was recorded in 52 participants with ID and 43 age- and sex-matched controls, during Eyes Open (EO) and Eyes Closed (EC). Detrended fluctuation analysis was applied to the amplitude envelope of band-filtered EEG oscillations (theta, alpha, sigma, beta-1, beta-2) to obtain the Hurst exponents (H), as measures of LRTC. Participants rated their subjective insomnia complaints using the Insomnia Severity Index (ISI). Through general linear models, we evaluated whether H, aggregated across electrodes and frequencies, differed between cases and controls, or showed within-group associations with individual differences in ISI. Additionally, we characterized the spatio-spectral profiles of group differences and associations using non-parametric statistics. H did not differ between cases with ID and controls in any of the frequency bands, neither during EO nor EC. During EO, however, within-group associations between H and ISI indicated that individuals who experienced worse sleep quality had stronger LRTC. Spatio-spectral profiles indicated that the associations held most prominently for the amplitude fluctuations of parietal theta oscillations within the ID group, and of centro-frontal beta-1 oscillations in controls. While people suffering from insomnia experience substantially worse sleep quality than controls, their brain dynamics express similar strength of LRTC. In each group, however, individuals experiencing worse sleep quality tend to have stronger LRTC during eyes open wakefulness, in a spatio-spectral range specific for each group. Taken together, the findings indicate that subjective insomnia complaints involve distinct dynamical processes in people with ID and controls. The findings are in agreement with recent reports on decreasing LRTC with sleep depth, and with the hypothesis that sleep balances brain excitability.
Accessibility: Document exists in file
Language:
eng
Author:
Colombo, M.
Secondary author(s):
Wei, Y., Ramautar, J., Linkenkaer-Hansen, K., Tagliazucchi, E., Van Someren, E.
Document type:
Article
Number of reproductions:
1
Reference:
Colombo, M., Wei, Y., Ramautar, J., Linkenkaer-Hansen, K., Tagliazucchi, E., & Van Someren, E. (2016). More severe insomnia complaints in people with stronger long-range temporal correlations in wake resting-state EEG. Frontiers in Physiology, 7:576. doi: 10.3389/fphys.2016.00576
2-year Impact Factor: 4.134|2016
Times cited: 20|2022-03-08
Indexed document: Yes
Quartile: Q1
Keywords: Resting-state / Insomnia / Sleep / HD-EEG / Long-range temporal correlations / Criticality / Detrended fluctuation analysis / Excitation-inhibition balance

More severe insomnia complaints in people with stronger long-range temporal correlations in wake resting-state EEG

More severe insomnia complaints in people with stronger long-range temporal correlations in wake resting-state EEG

DocumentSleep stage transition dynamics reveal specific stage 2 vulnerability in insomnia2017

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.05
Location: SEC PCA 252/12
Title:
Sleep stage transition dynamics reveal specific stage 2 vulnerability in insomnia
Publication year: 2017
URL:
https://academic.oup.com/sleep/article-abstract/40/9/zsx117/3926054?redirectedFrom=fulltext
Abstract/Results: ABSTRACT:
STUDY OBJECTIVES:
Objective sleep impairments in insomnia disorder (ID) are insufficiently understood. The present study evaluated whether whole-night sleep stage dynamics derived from polysomnography (PSG) differ between people with ID and matched controls and whether sleep stage dynamic features discriminate them better than conventional sleep parameters.
METHODS:
Eighty-eight participants aged 21-70 years, including 46 with ID and 42 age- and sex-matched controls without sleep complaints, were recruited through www.sleepregistry.nl and completed two nights of laboratory PSG. Data of 100 people with ID and 100 age- and sex-matched controls from a previously reported study were used to validate the generalizability of findings. The second night was used to obtain, in addition to conventional sleep parameters, probabilities of transitions between stages and bout duration distributions of each stage. Group differences were evaluated with nonparametric tests.
RESULTS:
People with ID showed higher empirical probabilities to transition from stage N2 to the lighter sleep stage N1 or wakefulness and a faster decaying stage N2 bout survival function. The increased transition probability from stage N2 to stage N1 discriminated people with ID better than any of their deviations in conventional sleep parameters, including less total sleep time, less sleep efficiency, more stage N1, and more wake after sleep onset. Moreover, adding this transition probability significantly improved the discriminating power of a multiple logistic regression model based on conventional sleep parameters.
CONCLUSIONS:
Quantification of sleep stage dynamics revealed a particular vulnerability of stage N2 in insomnia. The feature characterizes insomnia better than-and independently of-any conventional sleep parameter.
Accessibility: Document does not exist in file
Language:
eng
Author:
Wei, Y.
Secondary author(s):
Colombo, M., Ramautar, J., Blanken, T. F., Van Der Werf, Y. D., Spiegelhalder, K., Feige, B., Riemann, D., Van Someren, E.
Document type:
Article
Number of reproductions:
1
Reference:
Wei, Y., Colombo, M. A., Ramautar, J. R., Blanken, T. F., van der Werf, Y. D., ..., Van Someren, E. (2017). Sleep stage transition dynamics reveal specific stage 2 vulnerability in insomnia. Sleep, 40(9), zsx117. doi:10.1093/sleep/zsx117
2-year Impact Factor: 5.135|2017
Times cited: 25|2022-03-08
Indexed document: Yes
Quartile: Q1
Keywords: Markov chain / Binary classification / Feature selection / Hypnogram / Insomnia disorder / non-REM sleep / Polysomnography / Sleep architecture / Sleep fragmentation / Sleep stage

DocumentActigraphic multi-night home-recorded sleep estimates reveal three types of sleep misperception in Insomnia Disorder and good sleepers2020

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.06
Location: SEC PCA 252/12
Title:
Actigraphic multi-night home-recorded sleep estimates reveal three types of sleep misperception in Insomnia Disorder and good sleepers
Publication year: 2020
URL:
https://onlinelibrary.wiley.com/doi/epdf/10.1111/jsr.12937
Abstract/Results: ABSTRACT:
People with Insomnia Disorder tend to underestimate their sleep compared with polysomnography or actigraphy, a phenomenon known as paradoxical insomnia or sleep-state misperception. Previous studies suggested that night-to-night variability could be an important feature differentiating subtypes of misperception. This study aimed for a data-driven definition of misperception subtypes revealed by multiple sleep features including night-to-night variability. We assessed features describing the mean and dispersion of misperception and objective and subjective sleep duration from 7-night diary and actigraphy recordings of 181 people with Insomnia Disorder and 55 people without sleep complaints. A minimally collinear subset of features was submitted to latent class analysis for data-driven subtyping. Analysis revealed three subtypes, best discriminated by three of five selected features: an individual’s shortest reported subjective sleep duration; and the mean and standard deviation of misperception. These features were on average 5.4, -0.0 and 0.5 hr in one subtype accommodating the majority of good sleepers; 4.1, -1.4 and 1.0 hr in a second subtype representing the majority of people with Insomnia Disorder; and 1.7, -2.2 and 1.5 hr in a third subtype representing a quarter of people with Insomnia Disorder and hardly any good sleepers. Subtypes did not differ on an individual’s objective sleep duration mean (6.9, 7.2 and 6.9 hr) and standard deviation (0.8, 0.8 and 0.9 hr). Data-driven analysis of naturalistic sleep revealed three subtypes that markedly differed in misperception features. Future studies may include misperception subtype to investigate whether it contributes to the unexplained considerable individual variability in treatment response.
Accessibility: Documents exists in file
Language:
eng
Related objects:
BL-2016-190.05
Author: Te Lindert, B. H. W.
Secondary author(s):
Blanken, T. F., van der Meijden, W. P., Dekker, K., Wassing, R., van der Werf, Y. D., Ramautar, J. R., Van Someren, E. J. W.
Document type:
Article-d
Number of reproductions:
1
Reference:
Te Lindert, B. H. W., Blanken, T. F., van der Meijden, W. P., Dekker, K., Wassing, R., van der Werf, Y. D., Ramautar, J. R., & Van Someren, E. J. W. (2020). Actigraphic multi-night home-recorded sleep estimates reveal three types of sleep misperception in Insomnia Disorder and good sleepers. Journal of Sleep Research, 29(1), e12937. doi: 10.1111/jsr.12937
2-year Impact Factor: 3.981|2020
Times cited: 5|2022-03-08
Indexed document: Yes
Quartile: Q2
Keywords: Clustering analysis / Objective insomnia / Subjective insomnia / Subjective-objective sleep discrepancy

Actigraphic multi-night home-recorded sleep estimates reveal three types of sleep misperception in Insomnia Disorder and good sleepers

Actigraphic multi-night home-recorded sleep estimates reveal three types of sleep misperception in Insomnia Disorder and good sleepers

DocumentConsistent altered internal capsule white matter microstructure in insomnia disorder2020

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-253
Location: Arquivo PCA - Pasta 25/2012
Title:
253 - REM-sleep, the regulation of self-conscious emotion and hyperarousal in psychophysiological insomnia
Duration: 2015-11 - 2017-09
Researcher(s):
Lucia Talamini, Ekaterini Georgopoulou, Eus Van Someren
Institution(s): University of Amsterdam, Psychology, Dept. Brain and Cognition (The Netherlands) and Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Progress report
Final report
Language: eng
Author:
Talamini, L.
Secondary author(s):
Georgopoulou, E., Van Someren, E.
Number of reproductions:
1
Keywords:
Psychophysiology / Psychophysiological insomnia / Hyperarousal / Self-conscious emotion / REM-sleep

Reference code: PT/FB/BL-2012-252.07
Title: Consistent altered internal capsule white matter microstructure in insomnia disorder
Publication year: 2020
URL:
https://academic.oup.com/sleep/article/43/8/zsaa031/5775301
Abstract/Results: ABSTRACT:
Study Objectives: Suggested neural correlates of insomnia disorder have been hard to replicate. Even the most consistent finding, altered white matter microstructure in the anterior limb of the internal capsule, is based on handful studies. The urge for replicable targets to understand the underlying mechanisms of insomnia made us study white matter fractional anisotropy (FA) across three samples of cases and controls.
Methods: 3-Tesla MRI diffusion tensor imaging data of three independent samples were combined for analysis, resulting in n = 137 participants, of whom 73 were diagnosed with insomnia disorder and 64 were matched controls without sleep complaints. Insomnia severity was measured with the Insomnia Severity Index (ISI). White matter microstructure was assessed with FA. White matter tracts were skeletonized and analyzed using tract-based spatial statistics. We performed a region-of-interest analysis using linear mixed-effect models to evaluate case-control differences in internal capsule FA as well as associations between internal capsule FA and insomnia severity.
Results: FA in the right limb of the anterior internal capsule was lower in insomnia disorder than in controls (beta = -9.76e(-3); SE = 4.17e(-3), p = .034). In the entire sample, a higher ISI score was associated with a lower FA value of the right internal capsule (beta = -8.05e(- 4) FA/ISI point, SE = 2.60e(- 4), p = .008). Ancillary whole brain voxel-wise analyses showed no significant group difference or association with insomnia severity after correction for multiple comparisons.
Conclusions: The internal capsule shows small but consistent insomnia-related alterations. The findings support a circuit-based approach to underlying mechanisms since this tract connects many brain areas previously implicated in insomnia.
Accessibility: Document exists in file
Language:
eng
Author:
Bresser, T.
Secondary author(s):
Foster-Dingley, J. C., Wassing, R., Leerssen, J., Ramautar, J. R., Stoffers, D., Lakbila-Kamal, O., van den Heuvel, M., van Someren, E. J. W,
Document type:
Article
Number of reproductions:
1
Reference:
Bresser, T., Foster-Dingley, J. C., Wassing, R., Leerssen, J., Ramautar, J. R., Stoffers, D., Lakbila-Kamal, O., van den Heuvel, M.,& van Someren, E. J. W. (2020). Consistent altered internal capsule white matter microstructure in insomnia disorder. Sleep, 43(8): zsaa031. doi: 10.1093/sleep/zsaa031
2-year Impact Factor: 5.849|2020
Times cited: 3|2021-08-19
Indexed document: Yes
Quartile: Q1
Keywords: Insomnia disorder / White matter / Internal capsule / Diffusion tensor imaging / Fractional anisotropy

Consistent altered internal capsule white matter microstructure in insomnia disorder

Consistent altered internal capsule white matter microstructure in insomnia disorder

DocumentData-driven analysis of EEG reveals concomitant superficial sleep during deep sleep in insomnia disorder2019

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.07
Location: SEC PCA 252/12
Title:
Data-driven analysis of EEG reveals concomitant superficial sleep during deep sleep in insomnia disorder
Publication year: 2019
URL:
https://www.frontiersin.org/articles/10.3389/fnins.2019.00598/full
Abstract/Results: ABSTRACT:
Study Objectives: The subjective suffering of people with Insomnia Disorder (ID) is insufficiently accounted for by traditional sleep classification, which presumes a strict sequential occurrence of global brain states. Recent studies challenged this presumption by showing concurrent sleep- and wake-type neuronal activity. We hypothesized enhanced co-occurrence of diverging EEG vigilance signatures during sleep in ID.
Methods: Electroencephalography (EEG) in 55 cases with ID and 64 controls without sleep complaints was subjected to a Latent Dirichlet Allocation topic model describing each 30 s epoch as a mixture of six vigilance states called Topics (T), ranked from N3-related T1 and T2 to wakefulness-related T6. For each stable epoch we determined topic dominance (the probability of the most likely topic), topic co-occurrence (the probability of the remaining topics), and epoch-to-epoch transition probabilities.
Results: In stable epochs where the N1-related T4 was dominant, T4 was more dominant in ID than in controls, and patients showed an almost doubled co-occurrence of T4 during epochs where the N3-related T1 was dominant. Furthermore, patients had a higher probability of switching from T1- to T4-dominated epochs, at the cost of switching to N3-related T2-dominated epochs, and a higher probability of switching from N2-related T3- to wakefulness-related T6-dominated epochs.
Conclusion: Even during their deepest sleep, the EEG of people with ID express more N1-related vigilance signatures than good sleepers do. People with ID are moreover more likely to switch from deep to light sleep and from N2 sleep to wakefulness. The findings suggest that hyperarousal never rests in ID.
Accessibility: Document exists in file
Language:
eng
Related objects:
BL-2016-190.08
Author: Christensen, J. A. E.
Secondary author(s):
Wassing, R., Wei, Y., Ramautar, J. R., Lakbila-Kamal, O., Jennum, P. J., Van Someren, E. J. W.
Document type:
Article-d
Number of reproductions:
1
Reference:
Christensen, J. A. E., Wassing, R., Wei, Y., Ramautar, J. R., Lakbila-Kamal, O., Jennum, P. J., & Van Someren, E. J. W. (2019). Data-driven analysis of EEG reveals concomitant superficial sleep during deep sleep in insomnia disorder. Frontiers in Neuroscience, 13: 598. doi: 10.3389/fnins.2019.00598
2-year Impact Factor: 3.707|2019
Times cited: 9|2022-03-08
Indexed document: Yes
Quartile: Q2
Keywords: Insomnia / Indiscrete labeling of sleep / Vigilance states / Topic modeling / Data-driven analysis / Polysomnography / Latent Dirichlet allocation

Data-driven analysis of EEG reveals concomitant superficial sleep during deep sleep in insomnia disorder

Data-driven analysis of EEG reveals concomitant superficial sleep during deep sleep in insomnia disorder

DocumentConsistent altered internal capsule white matter microstructure in insomnia disorder2020

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-252
Location: SEC PCA 252/12
Title:
252 - Sleep state misperception mispercieved
Duration: 2014-06 - 2017-01
Researcher(s):
Eus J. W. Van Someren, J. Ramautar
Institution(s): Netherlands Institute for Neuroscience, Dept. Sleep & Cognition, Amsterdam (The Netherlands)
Contents: Contents:
Application form
Correspondence
Progress reports
Final reports
2 Articles
Language: eng
Author:
Van Someren, E.
Secondary author(s):
Ramautar, J.
Number of reproductions:
1
Keywords:
Psychophysiology / Sleep and dreams / Biopsychological problems / Mental health / Sleep disorders / Brain structure and function / Cognitive processes / Memory / Consciousness

Reference code: PT/FB/BL-2012-252.08
Location: BF-GMS
Title:
Consistent altered internal capsule white matter microstructure in insomnia disorder
Publication year: 2020
URL:
https://pubmed.ncbi.nlm.nih.gov/32123914/
Abstract/Results: Abstract
Study objectives: Suggested neural correlates of insomnia disorder have been hard to replicate. Even the most consistent finding, altered white matter microstructure in the anterior limb of the internal capsule, is based on handful studies. The urge for replicable targets to understand the underlying mechanisms of insomnia made us study white matter fractional anisotropy (FA) across three samples of cases and controls.
Methods: 3-Tesla MRI diffusion tensor imaging data of three independent samples were combined for analysis, resulting in n = 137 participants, of whom 73 were diagnosed with insomnia disorder and 64 were matched controls without sleep complaints. Insomnia severity was measured with the Insomnia Severity Index (ISI). White matter microstructure was assessed with FA. White matter tracts were skeletonized and analyzed using tract-based spatial statistics. We performed a region-of-interest analysis using linear mixed-effect models to evaluate case-control differences in internal capsule FA as well as associations between internal capsule FA and insomnia severity.
Results: FA in the right limb of the anterior internal capsule was lower in insomnia disorder than in controls (ß = -9.76e-3; SE = 4.17e-3, p = .034). In the entire sample, a higher ISI score was associated with a lower FA value of the right internal capsule (ß = -8.05e- 4 FA/ISI point, SE = 2.60e- 4, p = .008). Ancillary whole brain voxel-wise analyses showed no significant group difference or association with insomnia severity after correction for multiple comparisons.
Conclusions: The internal capsule shows small but consistent insomnia-related alterations. The findings support a circuit-based approach to underlying mechanisms since this tract connects many brain areas previously implicated in insomnia.
Accessibility: Document exists in file
Copyright/Reproduction:
by permission
Language:
eng
Author:
Bresser, T.
Secondary author(s):
Foster-Dingley, J. C., Wassing, R., Leerssen, J., Ramautar, J. R., Stoffers, D., Lakbila-Kamal, O., van den Heuvel, M., van Someren, E. J. W.
Document type:
Article-d
Number of reproductions:
1
Reference:
Bresser, T., Foster-Dingley, J. C., Wassing, R., Leerssen, J., Ramautar, J. R., Stoffers, D., Lakbila-Kamal, O., van den Heuvel, M.,& van Someren, E. J. W. (2020). Consistent altered internal capsule white matter microstructure in insomnia disorder. Sleep, 43(8): zsaa031. doi: 10.1093/sleep/zsaa031
2-year Impact Factor: 5.849|2020
Times cited: 3|2022-03-08
Indexed document: Yes
Quartile: Q1
Keywords: Diffusion tensor imaging / Fractional anisotropy / Insomnia disorder / Internal capsule / White matter