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File020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients2003-022004-12

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function
DocumentFinal report - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients2004

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function

Reference code: PT/FB/BL-2002-020.01
Location: Arquivo PCA - Pasta 2/2002
Title:
Final report - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Publication year: 2004
URL:
http://www.bial.com/imagem/Bolsa2002_19022014.pdf
Abstract/Results: RESULTS:
Discovery of the role of induced high frequency EEG activity in “binding phenomenon” that possibly underlies higher nervous functions (Tallon-Badry et al.,1996; Bennet, 1997) calls for the need to study this phenomenon in schizophrenia which is the disease including the failure of the integration between different brain areas.
We studied 50 free of medication patients diagnosed by DSM-IY and divided by SANS and SAPS almost equally to those having predominantly either positive or negative symptoms. The matched group of 30 healthy subjects was also studied; all participants gave informed consent for the experiment. We studied the spectral power of EEG-rhythms and the coherence between different brain areas in the background and during the performance of the tasks: mental arithmetic, space imagination and silent counting the hours on imaginary clock dial.
In the controls most brain rhythms were symmetrical and there were many intra- and interhemispheric connections especially during the tasks performance.
In both groups of patients in gamma-rhythm opposite to the norm, interhemispheric connections were absent. This disruption of interhemispheric informational transmission in schizophrenia can be caused by corpus callosum malfunction (Downhill, Buchsbaum, 2000) or synaptic defect.
Chronic schizophrenics with positive symptoms also revealed shortened EEG microstate duration which was obtained in the study together with D. Lehmann, T. Koenig, L. Gianotti and J. Gruzelier. These data show that information processing in some classes of mental operations terminate prematurely.
Functional disconnection of hemispheres and shortened microstates could underlie some aspects of neurocognitive deficit in schizophrenic patients.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Document type:
Final report
Number of reproductions:
1
Indexed document:
No
Keywords: Psychophysiology / Schizophrenia / Neurocognitive deficit

Novo ficheiro

Novo ficheiro
DocumentChronic schizophrenics with positive symptomatology have shortened EEG microstate durations2003

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function

Reference code: PT/FB/BL-2002-020.02
Location: Arquivo PCA - Pasta 2/2002
Title:
Chronic schizophrenics with positive symptomatology have shortened EEG microstate durations
Publication year: 2003
URL:
http://www.researchgate.net/publication/9037871_Chronic_schizophrenics_with_positive_symptomatology_have_shortened_EEG_microstate_durations
Contents: http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=241&SID=Z1T1li1SW9lnlKPlMpq&page=1&doc=1
Abstract/Results: ABSTRACT:
Objective: In young, first-episode, never-treated schizophrenics compared with controls, (a) generally shorter durations of EEG microstates were reported (Koukkou et al., Brain Topogr 6 (1994) 251; Kinoshita et al., Psychiatry Res Neuroimaging 83 (1998) 58), and (b) specifically, shorter duration of a particular class of microstates (Koenig et al., Eur Arch Psychiatry Clin Neurosci 249 (1999) 205). We now examined whether older, chronic schizophrenic patients with positive symptomatology also show these characteristics.
Methods: Multichannel resting EEG (62.2 s/subject) from two subject groups, 14 patients (36.1±10.2 years old) and 13 controls (35.1±8.2 years old), all males, was analyzed into microstates using a global approach for microstate analysis that clustered the microstates into 4 classes (Koenig et al., 1999).
Results: (a) Hypothesis testing of general microstate shortening supported a trend (P=0.064). (b) Two-way repeated measure ANOVA (two subject groups×4 microstate classes) showed a significant group effect for microstate duration. Posthoc tests revealed that a microstate class with brain electric field orientation from left central to right central-posterior had significantly shorter microstates in patients than controls (68.5 vs. 76.1 ms, P=0.034).
Conclusions: The results were in line with the results from young, never-treated, productive patients, thus suggesting that in schizophrenic information processing, one class of mental operations might intermittently cause deviant mental constructs because of premature termination of processing.
Accessibility: Document does not exist in file
Language:
eng
Author:
Strelets, V.
Secondary author(s):
Faber, P., Golikova, J., Novototsky-Vlasov, V. Y., Koenig, T., Gianotti, L., Gruzelier, J. H., Lehmann, D.
Document type:
Article
Number of reproductions:
1
Reference:
Strelets, V., Faber, P., Golikova, J., Novototsky-Vlasov, V. Y., Koenig, T., Gianotti, L., . . . Lehmann, D. (2003). Chronic schizophrenics with positive symptomatology have shortened EEG microstate durations. Clinical Neurophysiology, 114(11), 2043-2051. doi: 10.1016/s1388-2457(03)00211-6
2-year Impact Factor: 2.485|2003
Times cited: 85|2022-10-24
Indexed document: Yes
Quartile: Q2
Keywords: Schizophrenia / Positive symptoms / Electroencephalogram (EEG) microstates / Shortening of information processing
DocumentPsychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients2006

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function

Reference code: PT/FB/BL-2002-020.03
Location: Arquivo PCA - Pasta 2/2002
Title:
Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Publication year: 2006
URL:
http://www.bial.com/imagem/1178809516livroactas.pdf
Accessibility: Document does not exist in file
Language:
eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Document type:
Conference abstract
Number of reproductions:
1
Reference:
Strelets, V., Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M. (2006). Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients. In Aquém e além do cérebro. Behind and beyond the brain. Proceedings of the 6th Symposium of Fundação Bial (pp. 233-234). Porto: Fundação Bial.
Indexed document: No
Keywords: Psychophysiology / Schizophrenia / Neurophysiological assessment / Cognitive deficit

Novo ficheiro

Novo ficheiro
DocumentBrain connectivity in positive and negative syndrome schizophrenia2010

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function

Reference code: PT/FB/BL-2002-020.04
Location: Arquivo PCA - Pasta 2/2002
Title:
Brain connectivity in positive and negative syndrome schizophrenia
Publication year: 2010
URL:
http://www.sciencedirect.com/science/article/pii/S0306452210008006
Contents: http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=243&SID=Z1T1li1SW9lnlKPlMpq&page=1&doc=1
Abstract/Results: ABSTRACT:
If, as is widely believed, schizophrenia is characterized by abnormalities of brain functional connectivity, then it seems reasonable to expect that different subtypes of schizophrenia could be discriminated in the same way. However, evidence for differences in functional connectivity between the subtypes of schizophrenia is largely lacking and, where it exists, it could be accounted for by clinical differences between the patients (e.g. medication) or by the limitations of the measures used. In this study, we measured EEG functional connectivity in unmedicated male patients diagnosed with either positive or negative syndrome schizophrenia and compared them with age and sex matched healthy controls. Using new methodology (Medkour et al., 2009) based on partial coherence, brain connectivity plots were constructed for positive and negative syndrome patients and controls. Reliable differences in the pattern of functional connectivity were found with both syndromes showing not only an absence of some of the connections that were seen in controls but also the presence of connections that the controls did not show. Comparing connectivity graphs using the Hamming distance, the negative-syndrome patients were found to be more distant from the controls than were the positive syndrome patients. Bootstrap distributions of these distances were created which showed a significant difference in the mean distances that was consistent with the observation that negative-syndrome diagnosis is associated with a more severe form of schizophrenia. We conclude that schizophrenia is characterized by widespread changes in functional connectivity with negative syndrome patients showing a more extreme pattern of abnormality than positive syndrome patients.
Accessibility: Document does not exist in file
Language:
eng
Author:
Medkour, T.
Secondary author(s):
Walden, A. T., Burgess, A., Strelets, V.
Document type:
Article
Number of reproductions:
1
Reference:
Medkour, T., Walden, A. T., Burgess, A., & Strelets, V. (2010). Brain connectivity in positive and negative syndrome schizophrenia. Neuroscience, 169(4), 1779-1788. doi: 10.1016/j.neuroscience.2010.05.060
2-year Impact Factor: 3.215|2010
Times cited: 23|2022-10-24
Indexed document: Yes
Quartile: Q2
Keywords: Brain connectivity / Graphical models / Partial spectral coherence / Schizophrenia

Brain connectivity in positive and negative syndrome schizophrenia

Brain connectivity in positive and negative syndrome schizophrenia
DocumentGamma-rhythm, positive, negative symptoms and cognitive dysfunction in schizophrenia2010

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-020
Location: Arquivo PCA - Pasta 2/2002
Title:
020 - Psychophysiological Mechanisms of some aspects of Neurocognitive Deficit in Schizophrenic Patients
Duration: 2003-02 - 2004-12
Researcher(s):
Valeria Strelets, Janna Golikova, Vladimir Novototsky-Vlasov, R.A. Magomedov, M.V. Magomedova
Institution(s): Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences (Russia)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Language: eng
Author:
Strelets, V.
Secondary author(s):
Golikova, J., Novototsky-Vlasov, V. Y., Magomedov, R., Magomedova, M.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Mental health / Psychotic disorders / Brain structure and function

Reference code: PT/FB/BL-2002-020.05
Location: Arquivo PCA - Pasta 2/2002
Title:
Gamma-rhythm, positive, negative symptoms and cognitive dysfunction in schizophrenia
Publication year: 2010
Contents:
http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=245&SID=Z1T1li1SW9lnlKPlMpq&page=1&doc=1
Abstract/Results: ABSTRACT:
We studied characteristics of gamma-band (30-40 Hz) EEG in dependence on the prevalence of positive or negative symptoms of schizophrenia, taking into account the state of cognitive functions. Twenty patients with ICD-10 diagnosis of schizophrenia, with different disease duration (first episode and duration of more than two years) and 38 healthy people were studied. The presence and intensity of positive and negative symptoms were measured by the PANSS scale and cognitive functions were assessed using neuropsychological tests. Compared to the controls, the gamma-rhythm power was higher in patients with the prevalence of positive symptoms and lower in patients with negative symptoms. The reduced number of coherent relations, in particular, interhemispheric ones, and the absence of gamma-band synchronization in different brain areas were found in patients as well.
Accessibility: Document does not exist in file
Language:
rus
Author:
Magomedov, R.
Secondary author(s):
Garakh, Z. H., Orekhov, Iu. V., Zaitseva, Iu. S., Strelets, V.
Document type:
Article
Number of reproductions:
1
Reference:
Magomedov, R. A., Garakh, Z. V., Orekhov, Y. V., Zaytseva, Y. S., & Strelets, V. B. (2010). Gamma-rhythm, positive, negative symptoms and cognitive dysfunction in schizophrenia. Zhurnal Nevrologii I Psikhiatrii Imeni S S Korsakova, 110(1), 78-83.
2-year Impact Factor: 0.135|2010
Times cited: 3|2022-10-24
Indexed document: Yes
Quartile: Q4
Keywords: Schizophrenia / Electroencephalogram (EEG) / Gamma-band / Positive and negative symptoms / Cognitive processes