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DocumentFinal report - Event-related brain potential correlates of conscious and non-conscious processing in anxiety2010

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-2006
Location: Arquivo PCA - Pastas 1 a 22 /2006
Title:
2006 Grants
Start date: 2007-01 - 2013-11
Dimension/support:
22 caixas de arquivo

Reference code: PT/FB/BL-2006-144
Location: Arquivo PCA - Pasta 12/2006
Title:
144 - Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Duration: 2007-10 - 2010-11
Researcher(s):
Anne Richards, Amanda Holmes, Emily Hannon
Institution(s): Birkbeck College, University of London and Roehampton University, London (UK)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Number of reproductions:
1
Keywords:
Psychophysiology / Emotion / Cognitive processes / Perception

Reference code: PT/FB/BL-2006-144.01
Location: Arquivo PCA - Pasta 12/2006
Title:
Final report - Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Publication year: 2010
URL:
http://www.bial.com/imagem/Bolsa14406_28012014.pdf
Abstract/Results: RESULTS:
An adaptation paradigm was used for Experiment 1 (N=40 in final sample), where fear-neutral morphed expressions were classified for affect after exposure to either fear or neutral faces. There was a shift towards ‘fearful’ classifications of morphs following neutral compared to fear adaptation. ERP data analysis revealed a more pronounced late positive potential (LPP), beginning at ~400 ms post-stimulus onset, in high but not low anxious people following neutral compared to fear adaptation. As behavioural adaptation increased there was a linear augmentation in the magnitude of the late-LPP. These effects were apparent for trait and state anxiety, and for depression. These data show that negative moods are associated with increased sensitivity to visual contextual influences from top-down elaborative modulations, as reflected in an enhanced LPP deflection. In two oddball experiments, irrelevant emotional expressions were presented outside of (Experiment 2, N=13 in final sample) or within (Experiment 3, N=15 in final sample ) focal attention. The neurophysiological markers for emotional processing (LPP, Early Posterior Negativity [EPN]) were observed when the irrelevant emotional expressions were the focus of attention (Experiment 3) but eliminated when outside of focal attention (Experiment 3). The visual mismatch negativity (vMMN), said to index automatic encoding violations of visual featural regularities, was observed for unattended happy emotional expressions but not for fearful ones. The ‘pre-attentive’ encoding of featural changes arose only for happy faces and not for other less featurally salient expressions, such as fear. These data suggest that spatial attention is involved in the direct modulation of non-perceptual processes relating to the evaluation of emotional significance.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Document type:
Final report
Number of reproductions:
1
Indexed document:
No
Keywords: Psychophysiology / Emotional Expressions / Event-related potential (ERP) / Anxiety / Adaptation

Final report - Event-related brain potential correlates of conscious and non-conscious processing in anxiety

Final report - Event-related brain potential correlates of conscious and non-conscious processing in anxiety

DocumentAdaptation effects of emotional expressions in anxiety: Evidence for an enhanced late positive potential2010

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-2006
Location: Arquivo PCA - Pastas 1 a 22 /2006
Title:
2006 Grants
Start date: 2007-01 - 2013-11
Dimension/support:
22 caixas de arquivo

Reference code: PT/FB/BL-2006-144
Location: Arquivo PCA - Pasta 12/2006
Title:
144 - Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Duration: 2007-10 - 2010-11
Researcher(s):
Anne Richards, Amanda Holmes, Emily Hannon
Institution(s): Birkbeck College, University of London and Roehampton University, London (UK)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Number of reproductions:
1
Keywords:
Psychophysiology / Emotion / Cognitive processes / Perception

Reference code: PT/FB/BL-2006-144.02
Location: Arquivo PCA - Pasta 12/2006
Title:
Adaptation effects of emotional expressions in anxiety: Evidence for an enhanced late positive potential
Publication year: 2010
URL:
http://www.sciencedirect.com/science/article/pii/S016787601000615X
Abstract/Results: ABSTRACT:
Prolonged exposure to a stimulus biases perception of a subsequent stimulus away from the adapting stimulus (Clifford & Rhodes, 2005). These aftereffects have been observed with a wide variety of stimuli, including facial identity (Rhodes & Jeffery, 2006) and emotional facial expression (e.g., Webster et al., 2004). In the current experiment, we used this paradigm to examine the effect of anxiety on the perception of emotional expression. Photographs of a male and a female model from the Karolinska Directed Emotional Faces set (KDEF; Lundqvist et al. 1998) were selected and a series of morphs created by interpolating a fear exemplar with a neutral exemplar for each model. A pilot study established a range of morphed expressions falling on either side of the fear/neutral boundary, and these were then used in the main study. There were 16 adaptation blocks in the experiment proper, and each block began with an adapting phase in which participants viewed (and categorized) 35 presentations of one endpoint from the morph continuum. This was immediately followed by a test phase, during which participants viewed and categorized 33 images of the same model (8 dummy trials, 5 top-up trials and 20 test trials – 10 from either side of the categorical boundary). We predicted that all test trials would be perceived as having an emotional expression opposite to that of the adapting stimulus (e.g., adaptation to fear would produce ‘neutral’ classifications for the test stimuli that were originally on the ‘fear’ side of the boundary). EEG was recorded using a NeuroScan NuAmps system, and stimulus presentation was controlled using E-Prime. An analysis of the behavioural classification data revealed that adaptation to fear created a shift in the classification of morphs towards ‘neutral’ and adaptation to neutral created a shift towards ‘fear’. This shift was equivalent in high and low anxiety. An analysis of the ERP data, however, revealed a more pronounced late positive potential in the high, but not the low, anxiety group following adaptation to neutral compared to fear, and this effect was particularly enhanced for male than female expressions.
Accessibility: Document does not exist in file
Language:
eng
Author:
Richards, A.
Secondary author(s):
Bethell, E., Holmes, A., Hannon, E.
Document type:
Abstract
Number of reproductions:
1
Reference:
Richards, A., Bethell, E., Holmes, A., & Hannon, E. (2010). Adaptation effects of emotional expressions in anxiety: Evidence for an enhanced late positive potential. International Journal of Psychophysiology, 77(3), 234–235. doi: 10.1016/j.ijpsycho.2010.06.345
2-year Impact Factor: 2.036|2012
Times cited: 0|2019-06-07
Indexed document: Yes
Quartile: Q2
Keywords: Psychophysiology / Anxiety / Emotional expressions / Fear / Electroencephalogram (EEG) / Adaptation

DocumentEvent-related brain potential correlates of conscious and non-conscious processing in anxiety2012

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-2006
Location: Arquivo PCA - Pastas 1 a 22 /2006
Title:
2006 Grants
Start date: 2007-01 - 2013-11
Dimension/support:
22 caixas de arquivo

Reference code: PT/FB/BL-2006-144
Location: Arquivo PCA - Pasta 12/2006
Title:
144 - Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Duration: 2007-10 - 2010-11
Researcher(s):
Anne Richards, Amanda Holmes, Emily Hannon
Institution(s): Birkbeck College, University of London and Roehampton University, London (UK)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Number of reproductions:
1
Keywords:
Psychophysiology / Emotion / Cognitive processes / Perception

Reference code: PT/FB/BL-2006-144.03
Location: Arquivo PCA - Pasta 12/2006
Title:
Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Publication year: 2012
URL:
http://www.bial.com/imagem/Bial%20Sonhos%20Miolo_Total%20Bolsas.pdf
Abstract/Results: ABSTRACT:
OBJECTIVES:
An adaptation paradigm was used to examine the effect of context on emotional expression processing in anxiety. We predicted that fear/neutral morphs would be more likely to be classified as ‘fearful’ following neutral adaptation and ‘neutral’ following fearful adaptation. We examined several ERP components (P1, EPN and the LPP) in order to investigate the time course of differential processes involved in ambiguity resolution and whether these effects are modulated by anxiety.
METHODS:
A male and a female model were selected and fear/neutral morphs created. Participants classified test trials following adaptation to the fear or neutral exemplar. 16 test blocks were presented, and participants classified the emotional expression of each test trial. EEG was recorded using a NeuroScan NuAmmps system, and stimulus presentation was controlled using EPrime. The high temporal resolution of the EEG technique enabled us to examine the locus of the expression aftereffects in anxiety. Several ERP components were examined to see if they were modulated by anxiety.
RESULTS:
There was a shift in the behavioural classification of morphs towards ‘fear’ following adaptation to the neutral exemplar compared to adaptation to the fear exemplar, and this shift was equivalent for high and low anxiety. The behavioural analysis revealed that the female face was classified as being fearful more often at baseline and following neutral adaptation compared to the male face. An analysis of the ERP data, however, revealed a more pronounced late positive potential, beginning at ~400 ms post-stimulus onset, in the high but not the low anxiety group following adaptation to neutral compared to fear.
CONCLUSIONS:
These data support the proposal that high anxiety is associated with increased sensitivity to contextual influences from top-down elaborative modulations, as reflected in an enhanced late positive potential deflection. These data offer support for an increase in sensitivity to context in high anxiety.
DISCUSSION:
The adaptation paradigm combined with behavioural report and EEG is a useful technique for examining the effect of context on categorization of ambiguous information. These data reveal a late effect of context on categorization in anxiety.
Accessibility: Document does not exist in file
Language:
eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Document type:
Conference abstract
Number of reproductions:
1
Reference:
Richards, A., Holmes, A., & Hannon, E. (2012). Event-related brain potential correlates of conscious and non-conscious processing in anxiety. In Aquém e além do cérebro. Behind and beyond the brain. Proceedings of the 9th Symposium of Fundação Bial (p. 10/63). Porto: Fundação Bial.
Indexed document: No
Keywords: Event-related potential (ERP) / Anxiety / Adaptation / Emotional expressions

Event-related brain potential correlates of conscious and non-conscious processing in anxiety

Event-related brain potential correlates of conscious and non-conscious processing in anxiety

DocumentDeterminantes psicofisiológicos da resposta ao stress: Aspectos do desenvolvimento e adaptação ao cancro da mama2013

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-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-119
Location: Arquivo PCA - Pasta 21/2010
Title:
119 - Psychophysiological indicators of stress reactivity and disease adaptation: Attachment styles, coping and emotions regulation
Duration: 2011-03 - 2015-09
Researcher(s):
Sílvia Ouakinin, Luísa Maria Vaqueiro Lopes, Susana Filipa Gonçalves Eusébio, Marco Alberto Vicente Barreto Torrado, Isabel Maria Rolão Nabais, Graça Maria Vilhena da Cruz Gonçalves Costa Diogo
Institution(s): Centro Multidisplinar de Psicopatologia Barahona Fernandes, Faculdade de Medicina da Universidade de Lisboa (Portugal)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Master´s power point presentation
2 Articles (previous version)
2 Conference abstract
Final report
Language: por
Author:
Ouakinin, S.
Secondary author(s):
Lopes, L., Eusébio, S., Torrado, M., Nabais, I., Diogo, G.
Keywords:
Psychophysiology / Stress and health / Affective and social behavior / Attachment / Biopsychological problems / Diseases/Injuries

Reference code: PT/FB/BL-2010-119.03
Location: Arquivo PCA - Pasta 21/2010
Title:
Determinantes psicofisiológicos da resposta ao stress: Aspectos do desenvolvimento e adaptação ao cancro da mama
Publication year: 2013
URL:
http://hdl.handle.net/10451/8498
Abstract/Results: ABSTRACT:
Research has argued that attachment styles, relatively stable throughout life, seem to influence how individuals respond to stress in adulthood. The cognitive schemata of insecure attachment, associated with negative emotions, often seem to relate to physical or mental illness, showing that psychobiological self-regulation mechanisms constitute factors of vulnerability to stressors. Several studies support the hypothesis that the development of less effective emotion regulation strategies are related to patterns of increased physiological reactivity and negative coping strategies, which may hinder adaptation in situations of illness and even promoting their progression. This research, based on a model of of self-regulation systems developed in interaction with early experiences, wants to characterize vulnerability to stress and adjustment to physical illness as a function of attachment style and explore the interactions between psychophysiological, emotional and behavioral dimensions, comparing women with breast cancer (N = 30) with healthy women (N = 31) and thus contribute to a tentative model of psychosomatic vulnerability. The results suggest insecure attachment patterns are related to less effective emotion regulation strategies and increased physiological reactivity and to negative adjustment outcomes.
Accessibility: Document exist in file (abstract and power point presentation)
Copyright/Reproduction:
By permission
Language:
por
Notes:
The attachment contains the master´s thesis and its power point presentation
Author: Eusébio, S.
Document type:
Master's thesis
Reference:
Eusébio, S. (2013). Determinantes psicofisiológicos da resposta ao stress: Aspectos do desenvolvimento e adaptação ao cancro da mama. Master's thesis. Faculdade de Medicina da Universidade de Lisboa, Portugal. Retrieved from http://hdl.handle.net/10451/8498
Indexed document: No
Keywords: Attachment / Emotional stress regulation / Adaptation

Presentation

Presentation

Master's thesis

Master's thesis

Abstract

Abstract

DocumentAdapting effects of emotional expression in anxiety: Evidence for an enhanced Late Positive Potential2013

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-2006
Location: Arquivo PCA - Pastas 1 a 22 /2006
Title:
2006 Grants
Start date: 2007-01 - 2013-11
Dimension/support:
22 caixas de arquivo

Reference code: PT/FB/BL-2006-144
Location: Arquivo PCA - Pasta 12/2006
Title:
144 - Event-related brain potential correlates of conscious and non-conscious processing in anxiety
Duration: 2007-10 - 2010-11
Researcher(s):
Anne Richards, Amanda Holmes, Emily Hannon
Institution(s): Birkbeck College, University of London and Roehampton University, London (UK)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Hannon, E.
Number of reproductions:
1
Keywords:
Psychophysiology / Emotion / Cognitive processes / Perception

Reference code: PT/FB/BL-2006-144.04
Location: Arquivo PCA - Pasta 12/2006
Title:
Adapting effects of emotional expression in anxiety: Evidence for an enhanced Late Positive Potential
Publication year: 2013
URL:
http://www.tandfonline.com/doi/full/10.1080/17470919.2013.854273#.UtkpXtGYYq4
Abstract/Results: ABSTRACT:
An adaptation paradigm was used to investigate the influence of a previously experienced visual context on the interpretation of ambiguous emotional expressions. Affective classification of fear-neutral ambiguous expressions was performed following repeated exposure to either fearful or neutral faces. There was a shift in the behavioral classification of morphs toward “fear” following adaptation to neutral compared to adaptation to fear with a nonsignificant trend toward the high-anxiety group compared to the low being more influenced by the context. The event-related potential (ERP) data revealed a more pronounced late positive potential (LPP), beginning at ~400 ms poststimulus onset, in the high but not the low-anxiety group following adaptation to neutral compared to fear. In addition, as the size of the behavioral adaptation increased, there was a linear increase in the magnitude of the late-LPP. However, context-sensitivity effects are not restricted to trait anxiety, with similar effects observed with state anxiety and depression. These data support the proposal that negative moods are associated with increased sensitivity to visual contextual influences from top-down elaborative modulations, as reflected in an enhanced LPP deflection.
Accessibility: Document does not exist in file
Language:
eng
Author:
Richards, A.
Secondary author(s):
Holmes, A., Bethell, E., Pell, P.
Document type:
Article
Number of reproductions:
1
Reference:
Richards, A., Holmes, A., Bethell, E., & Pell, P. (2013). Adapting effects of emotional expression in anxiety: Evidence for an enhanced Late Positive Potential. Social Neuroscience, 8(6), 650-664. doi: 10.1080/17470919.2013.854273
2-year Impact Factor: 2.873|2013
Times cited: 9|2020-03-11
Indexed document: Yes
Quartile: Q2
Keywords: Adaptation / Anxiety / Depression / Event-related potential (ERP) / Late positive potential

Adapting effects of emotional expression in anxiety: Evidence for an enhanced Late Positive Potential

Adapting effects of emotional expression in anxiety: Evidence for an enhanced Late Positive Potential

File207 - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making2017-11

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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-207
Location: BF-GMS
Title:
207 - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making
Duration: 2017-11
Researcher(s):
Miguel Castelo-Branco, João Duarte, Ricardo Martins, Teresa Sousa, Gabriel Costa
Institution(s): Institute for Nuclear Sciences Applied to Health - ICNAS, University of Coimbra (Portugal)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Author: Castelo-Branco, M.
Secondary author(s):
Duarte, J., Martins, R., Sousa, T., Costa, G.
Keywords:
Adaptation / Neuroimaging / Perceptual decision / Electroencephalogram (EEG) / Psychophysiology

DocumentSize aftereffects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression2017

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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-152
Location: BF-GMS
Title:
152 - The role of the lateral occipital area in the visual processing of object size, shape, and orientation within and outside conscious awareness
Duration: 2017-03 - 2019-09
Researcher(s):
Philippe Chouinard, Irene Sperandio, Robin Laycock
Institution(s): La Trobe University, Melbourne (Australia); School of Psychology, University of East Anglia, Norwich (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Author: Chouinard, P.
Secondary author(s):
Sperandio, I., Laycok, R.
Keywords:
Lateral occiptal area (LO) / Continuous Flash Superssion (CFS) / Transcranial magnetic stimulation (TMS) / Object features / Psychophysiology

Reference code: PT/FB/BL-2016-152.02
Location: BF-GMS
Title:
Size aftereffects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression
Publication year: 2017
URL:
https://www.frontiersin.org/articles/10.3389/fnhum.2017.00479/full
Abstract/Results: ABSTRACT:
Size aftereffects are a compelling perceptual phenomenon in which we perceive the size of a stimulus as being different than it actually is following a period of visual stimulation of an adapter stimulus with a different size. Here, we used continuous flash suppression (CFS) to determine if size aftereffects require a high-level appraisal of the adapter stimulus. The strength of size aftereffects was quantified following a 3-s exposure to perceptually visible and invisible adapters. Participants judged the size of a target that followed the adapter in comparison to a subsequent reference. Our experiments demonstrate that the adapter no longer influenced the perceived size of the subsequent target stimulus under CFS. We conclude that the perception of size aftereffects is prevented when CFS is used to suppress the conscious awarness of the adapting stimulus.
Accessibility: Document exists in file
Language:
eng
Author:
Laycok, R.
Secondary author(s):
Sherman, J., Sperandio, I., Chouinard, P.
Document type:
Article
Reference:
Laycok, R., Sherman, J., Sperandio, I., & Chouinard, P. (2017). Size aftereffects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression. Frontiers in Human Neuroscience, 11: 479. doi: 10.3389/fnhum.2017.00479
2-year Impact Factor: 2.871|2017
Times cited: 5|2020-03-31
Indexed document: Yes
Quartile: Q2
Keywords: Adaptation / Size aftereffects / Continuous flash suppression (CFS) / Conscious awareness / Perception

Size aftereffects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression

Size aftereffects are eliminated when adaptor stimuli are prevented from reaching awareness by continuous flash suppression

DocumentPsychometric properties of the questionnaire of cognitive and affective empathy in a Portuguese sample2018

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-2012-087
Location: Arquivo PCA - Pasta 24/2012
Title:
087 - Neurobiological correlates of empathy in couples: A study of central and peripheral measures
Duration: 2013-05 - 2017/07
Researcher(s):
Joana Fernandes Pereira Coutinho, Cledna Patricia de Oliveira Silva, Jean Decety, Kristin Perrone McGovern, Óscar Filipe Coelho Neves Gonçalves, Vânia Andrea Sousa Gonçalves Moreira de Lima
Institution(s): Centro de Investigação em Psicologia, Escola de Psicologia, Universidade do Minho (Portugal)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Progress report
2 Articles (1 published and 1 submitted)
Language: eng
Author:
Coutinho, J.
Secondary author(s):
Silva, C. P., Decety, J., McGovern, K., Gonçalves, O., Lima, V.
Keywords:
Psychophysiology / Emotion / Empathy / Affective and social behavior / Conjugality / Brain structure and function / Intervention

Reference code: PT/FB/BL-2012-087.17
Location: Arquivo PCA - Pasta 24/2012
Title:
Psychometric properties of the questionnaire of cognitive and affective empathy in a Portuguese sample
Publication year: 2018
URL:
http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0197755&type=printable
Abstract/Results: ABSTRACT:
Empathy is an important concept in psychology and cognitive neuroscience. Despite the controversy around its definition, most researchers would agree that empathy is a multidimensional phenomenon which involves a vicarious experience of another person’s affective state and an understanding of another person’s affective experience. Self-report measures of empathy constitute an important tool for both research and clinical practice. The main goal of this study was to adapt and study the psychometric properties of the Questionnaire of Cognitive and Affective Empathy (QCAE), a worldwide used measure of empathy, in a Portuguese community sample (N = 562). Confirmatory factor analyses supported the factor structure of the original QCAE. Results show that the Portuguese version of the QCAE has sound psychometric properties, with good structural validity and internal consistency for both scales (i.e., affective and cognitive) and respective subscales of the instrument (i.e., Emotion Contagion, Proximal Responsivity, Peripheral Responsivity, Perspective Taking and Online Simulation). We tested both a five correlated factor structure (Model 1) and a second-order model that postulates the affective and cognitive dimensions (Model 2). Our results show that while both models present acceptable goodness of fit indices, Model 1 performs slightly better. In conclusion, the Portuguese version of the QCAE may prove a useful tool for future cross-cultural assessments of empathy in both research and clinical practice.
Accessibility: Document exists in file
Language:
eng
Author:
Queirós, A.
Secondary author(s):
Fernandes, E., Reniers, R., Sampaio, A., Coutinho, J., Seara-Cardoso, A.
Document type:
Article
Reference:
Queirós, A., Fernandes, E., Reniers, R., Sampaio, A., Coutinho, J., & Seara-Cardoso, A. (2018). Psychometric properties of the questionnaire of cognitive and affective empathy in a Portuguese sample. PLoS ONE, 13(6): e0197755. doi: 10.1371/journal.pone.0197755
2-year Impact Factor: 2.776|2018
Times cited: 5|2020-04-02
Indexed document: Yes
Quartile: Q2
Keywords: Empathy / Adaptation

Psychometric properties of the questionnaire of cognitive and affective empathy in a Portuguese sample

Psychometric properties of the questionnaire of cognitive and affective empathy in a Portuguese sample

DocumentEvidence for distinct levels of neural adaptation to both coherent and incoherently moving visual surfaces in visual area hMT+2018

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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-207
Location: BF-GMS
Title:
207 - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making
Duration: 2017-11
Researcher(s):
Miguel Castelo-Branco, João Duarte, Ricardo Martins, Teresa Sousa, Gabriel Costa
Institution(s): Institute for Nuclear Sciences Applied to Health - ICNAS, University of Coimbra (Portugal)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Author: Castelo-Branco, M.
Secondary author(s):
Duarte, J., Martins, R., Sousa, T., Costa, G.
Keywords:
Adaptation / Neuroimaging / Perceptual decision / Electroencephalogram (EEG) / Psychophysiology

Reference code: PT/FB/BL-2016-207.03
Location: BF-GMS
Title:
Evidence for distinct levels of neural adaptation to both coherent and incoherently moving visual surfaces in visual area hMT+
Publication year: 2018
URL:
https://www.sciencedirect.com/science/article/pii/S1053811918305822?via%3Dihub
Abstract/Results: ABSTRACT:
Visual adaptation describes the processes by which the visual system alters its operating properties in response to changes in the environment. It is one of the mechanisms controlling visual perceptual bistability – when two perceptual solutions are available – by controlling the duration of each percept. Moving plaids are an example of such ambiguity. They can be perceived as two surfaces sliding incoherently over each other or as a single coherent surface.
Here, we investigated, using fMRI, whether activity in the human motion complex (hMT+), a region tightly related to the perceptual integration of visual motion, is modulated by distinct forms of visual adaptation to coherent or incoherent perception of moving plaids. Our hypothesis is that exposure to global coherent or incoherent moving stimuli leads to different levels of measurable adaptation, reflected in hMT+ activity. We found that the strength of the measured visual adaptation effect depended on whether subjects integrated (coherent percept) or segregated (incoherent percept) surface motion signals.
Visual motion adaptation was significant both for coherent motion and globally incoherent surface motion. Although not as strong as to the coherent percept, visual adaptation due to the incoherent percept also affects hMT+. This shows that adaptation can contribute to regulate percept duration during visual bistability, with distinct weights, depending on the type of percept. Our findings suggest a link between bistability and adaptation mechanisms, both due to coherent and incoherent motion percepts, but in an asymmetric manner. These asymmetric adaptation weights have strong implications in models of perceptual decision and may explain asymmetry of perceptual interpretation periods.
Accessibility: Document does not exist in file
Language:
eng
Author:
Sousa, T.
Secondary author(s):
Sayal, A., Duarte, J. V., Costa, G., Martins, R., Castelo-Branco, M.
Document type:
Article
Reference:
Sousa, T., Sayal, A., Duarte, J. V., Costa, G., Martins, R., Castelo-Branco, M. (2018). Evidence for distinct levels of neural adaptation to both coherent and incoherently moving visual surfaces in visual area hMT+. NeuroImage, 179, 540-547. doi: 10.1016/j.neuroimage.2018.06.075
2-year Impact Factor: 5.812|2018
Times cited: 0|2020-04-02
Indexed document: Yes
Quartile: Q1
Keywords: Bistable visual motion / Perceptual decision / Adaptation / Plaids / hMT+

DocumentFinal report - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making2019

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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-207
Location: BF-GMS
Title:
207 - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making
Duration: 2017-11
Researcher(s):
Miguel Castelo-Branco, João Duarte, Ricardo Martins, Teresa Sousa, Gabriel Costa
Institution(s): Institute for Nuclear Sciences Applied to Health - ICNAS, University of Coimbra (Portugal)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Author: Castelo-Branco, M.
Secondary author(s):
Duarte, J., Martins, R., Sousa, T., Costa, G.
Keywords:
Adaptation / Neuroimaging / Perceptual decision / Electroencephalogram (EEG) / Psychophysiology

Reference code: PT/FB/BL-2016-207.01
Title: Final report - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making
Publication year: 2019
Abstract/Results:
ABSTRACT
BACKGROUND AND AIMS
Studying the human brain response to shifts in perception provides an insight on the neuronal processes which underlie perceptual decision. Visual ambiguous stimuli are a powerful tool to investigate such processes, since perception varies over time despite the physically unchanging properties of stimuli.
A classic example of an ambiguous visual stimulus is when two moving gratings are superimposed to form a plaid. The perception of a moving plaid switches back and forth between two interpretations: it can be perceived as a single surface with coherent motion or as two surfaces sliding one over the other (incoherent motion). It has been suggested that this phenomenon arises from competition between opposing percepts, which might be influenced by mechanisms such as neuronal adaptation, inhibition, and memory. Current perceptual stability models consider bistable perception as a result of the interaction between these mechanisms, but the relative contribution of each one is still under debate.
METHODS
Here, using fMRI, EEG and behavioral approaches, we explore how each of these contributes to perceptual decision during bistable visual perception of moving plaids, taking into account the possible interaction between them. We hypothesized that the crucial role of adaptation in perceptual bistability arises from its influence on other mechanisms, such as perceptual persistence (a special form of short term visual memory) and inhibition.
Based on a set of three experiments, we first tested for distinct levels of adaptation during visual motion perceptual bistability. Then, we investigated how such adaptation competes with persistence to influence perceptual experience. Finally, we tested whether cross-inhibitory effects occur between bistable percepts of a moving plaid, elicited by adaptation.
RESULTS
We found that adaptation can contribute to regulating percept duration during visual bistability, with distinct weights, depending on the type of percept. Our results provide further evidence for continuous competition between adaptation and persistence, the first leading to negative and the second to positive hysteresis, with a relevant role for perceptual experience. Finally, we demonstrated, both at the behavioral and neuronal level, that inhibition across neural populations plays a key role in the disambiguation of moving plaids.
CONCLUSION
Taken together, our findings add to the understanding of how the visual system achieves perceptual decisions based on interactions between low and high-level neuronal mechanisms, one based on adaptation and the second on short-term visual memory (persistence).
Accessibility: Document exist in file
Language:
eng
Author:
Castelo-Branco, M.
Secondary author(s):
Duarte, J., Martins, R., Sousa, T., Costa, G.
Document type:
Final report
Reference:
Castelo-Branco, M., Duarte, J., Martins, R., Sousa, T., & Costa, G. (2019). Final report - The role of motion adaptation in bottom-up mechanisms of perceptual decision-making.
Indexed document: No
Keywords: Adaptation / Short-term memory / Ambiguous visual motion / Perceptual bistability / Perceptual decision / Visual motion integration / fMRI