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BIAL Foundation
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File535 - Neural oscillations underlie individual differences in brightness perception2015-11

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-2014
Location: BF-GMS
Title:
2014 Grants
Start date: 2015-01

Reference code: PT/FB/BL-2014-535
Location: BF-GMS
Title:
535 - Neural oscillations underlie individual differences in brightness perception
Duration: 2015-11
Researcher(s):
James Stuart Peter Macdonald
Institution(s): University of Roehampton, London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Language: eng
Notes:
This project is still in progress
Author: MacDonald, J. S. P.
Keywords:
Vision / Perception / Brightness / Oscillation / Psychophysiology

DocumentFinal report - Neural oscillations underlie individual differences in brightness perception2019

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-2014
Location: BF-GMS
Title:
2014 Grants
Start date: 2015-01

Reference code: PT/FB/BL-2014-535
Location: BF-GMS
Title:
535 - Neural oscillations underlie individual differences in brightness perception
Duration: 2015-11
Researcher(s):
James Stuart Peter Macdonald
Institution(s): University of Roehampton, London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Language: eng
Notes:
This project is still in progress
Author: MacDonald, J. S. P.
Keywords:
Vision / Perception / Brightness / Oscillation / Psychophysiology

Reference code: PT/FB/BL-2014-535.01
Title: Final report - Neural oscillations underlie individual differences in brightness perception
Publication year: 2019
Abstract/Results:
ABSTRACT:
EEG recordings of human occipital alpha-band oscillations have been strongly linked to visual perception. In particular, cortical excitability is increased in areas exhibiting low alpha amplitude. Although the frequency of alpha oscillations varies significantly between individuals, it has only rarely been studied as an independent factor in shaping perception. Temporal integration of successive stimuli has recently been shown to depend on individual alpha oscillation frequency, with faster frequencies resulting in finer temporal resolution in perception. This suggests that perception may qualitatively differ between individuals with different spontaneous alpha frequencies. Moreover, underlying the differences in temporal resolution may be a more basic visual process: differences in sensitivity to visual flicker. We tested this hypothesis by correlating performance in a flicker detection task with the speed of individual alpha rhythms. For each participant, we obtained temporal contrast sensitivity functions and related the stimulus frequency at peak sensitivity to individual alpha frequency. Our results demonstrate that individual alpha frequency predicts contrast sensitivity to visual flicker. Individuals with faster spontaneous alpha rhythms were maximally sensitive at faster stimulus flicker frequencies. Importantly, such individuals performed worse at slower stimulus frequencies than those with naturally slower alpha rhythms. This suggests that individual alpha frequency specifically predicts the stimulus flicker frequency which produces maximum contrast sensitivity. The findings provide evidence for a link between alpha frequency and individual differences in basic, low-level visual perception.
Accessibility: Document exists in file
Language:
eng
Author:
MacDonald, J.
Document type:
Final report
Indexed document:
No
Keywords: Electroencephalogram (EEG) / Oscillations / Alpha / Visual / Perception

Final report - Neural oscillations underlie individual differences in brightness perception

Final report - Neural oscillations underlie individual differences in brightness perception