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File150 - An investigation into the causal role of alpha oscillations in attention2017-032023-02

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-2016-150
Location: BF-GMS
Title:
150 - An investigation into the causal role of alpha oscillations in attention
Duration: 2017-03 - 2023-02
Researcher(s):
Alexander Jones, Jonathan Silas, Lars Wicke
Institution(s): The Behavioural, Affective, and Cognitive Neuroscience research group - BACneuro, Middlesex University London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Article
Author: Jones, A.
Secondary author(s):
Silas, J., Wicke, L.
Number of reproductions:
1
Keywords:
Alpha oscillations / Attention / Touch / transcranial Alternating Current Stimulation (tACS) / Psychophysiology
DocumentEvent-related alpha desynchronization in touch - Comparing attention and 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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-150
Location: BF-GMS
Title:
150 - An investigation into the causal role of alpha oscillations in attention
Duration: 2017-03 - 2023-02
Researcher(s):
Alexander Jones, Jonathan Silas, Lars Wicke
Institution(s): The Behavioural, Affective, and Cognitive Neuroscience research group - BACneuro, Middlesex University London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Article
Author: Jones, A.
Secondary author(s):
Silas, J., Wicke, L.
Number of reproductions:
1
Keywords:
Alpha oscillations / Attention / Touch / transcranial Alternating Current Stimulation (tACS) / Psychophysiology

Reference code: PT/FB/BL-2016-150.02
Location: BF-GMS
Title:
Event-related alpha desynchronization in touch - Comparing attention and perception
Publication year: 2019
URL:
https://www.sciencedirect.com/science/article/abs/pii/S0304394019303088
Abstract/Results: ABSTRACT
An event-related decrease in alpha power contralateral to the presentation of a stimulus is now a well-established phenomenon. Two distinct accounts of the functional role of alpha changes are present in the literature that either focus on alpha changes observed during attentional or simple perceptual tasks. This study directly compares tasks that invoke alpha decreases during exogenous, endogenous and perceptual processing. Using a data driven approach to compare alpha changes we show that alpha decreases differ only between exogenous and endogenous attention tasks for only a short time window, 500–600?ms after cue onset. We suggest this indicates a role for alpha in voluntary orientating and stimulus predictability.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Silas, J.
Secondary author(s):
Tipple, A., Jones, A.
Document type:
Article
Number of reproductions:
1
Percentiles:
7
Reference:
Silas, J., Tipple, A., & Jones, A. (2019). Event-related alpha desynchronization in touch - Comparing attention and perception. Neuroscience Letters, 705, 131-137. https://doi.org/10.1016/j.neulet.2019.04.058
2-year Impact Factor: 2.274|2019
Times cited: 2|2024-02-12
Indexed document: Yes
Quartile: Q3
Keywords: Attention / Alpha event-related desynchronization / Data-driven / Time-frequency / Somatosensory
DocumentFinal report - An investigation into the causal role of alpha oscillations in attention2023

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-2016-150
Location: BF-GMS
Title:
150 - An investigation into the causal role of alpha oscillations in attention
Duration: 2017-03 - 2023-02
Researcher(s):
Alexander Jones, Jonathan Silas, Lars Wicke
Institution(s): The Behavioural, Affective, and Cognitive Neuroscience research group - BACneuro, Middlesex University London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Article
Author: Jones, A.
Secondary author(s):
Silas, J., Wicke, L.
Number of reproductions:
1
Keywords:
Alpha oscillations / Attention / Touch / transcranial Alternating Current Stimulation (tACS) / Psychophysiology

Reference code: PT/FB/BL-2016-150.01
Location: BF-GMS
Title:
Final report - An investigation into the causal role of alpha oscillations in attention
Publication year: 2023
Abstract/Results:
ABSTRACT:
BACKGROUND
Using electroencephalography (EEG) an event-related change in alpha activity has been observed over primary sensory cortices during the allocation of spatial attention. Whether these changes in alpha oscillatory activity are causally related to attentional resources, or to perceptual processes, or are simply epiphenomenal, is unknown. Moreover, research suggests that the individual peak frequency (IPF) may vary as a function of the task participants perform.
AIMS
This project uses EEG to investigate differences in alpha IPF as they relate to different attentional tasks. Moreover, using transcranial alternating current stimulation (tACS), we tested whether somatosensory alpha oscillations are causally related to endogenous and exogenous attention.
METHOD
The project consists of three full length studies. Participants were presented with tactile or visual stimuli and instructed to attend to or ignore stimulation. In two studies we recorded EEG and in a third study we presented tACS and investigate changes in behaviour.
RESULTS
The EEG studies demonstrated that alpha oscillations are influenced by task instructions. Passive perceptual and endogenous orienting of attention results in the largest alpha desynchronization whilst exogenous orienting modulated alpha less. The IPF in the different tasks differed in the time onset whilst not in frequency. The large scale tACS study resulted showed lateralised alpha tACS targeting sensorimotor cortex has no effect on exogenous or endogenous tactile attentional mechanisms.
CONCLUSIONS
This project adds novel neuroscientific methods in terms of data collection and analysis, open science procedures, as well as presents results advancing theoretical knowledge of perception and attention. Interestingly, we observe alpha changes using EEG in different tasks, associated with behaviour. However, applying the same oscillations to the brain using tACS does not alter behaviour. This contributes to the ongoing debate about the role of alpha in attentional processes and suggests that these findings support an account of alpha power not being casually involved in attention.
Accessibility: Document exists in file
Language:
eng
Author:
Jones, A.
Secondary author(s):
Silas, J., Wicke, L.
Document type:
Final report
Number of reproductions:
1
Reference:
Jones, A., Silas, J., & Wicke, L. (2023). Final report - An investigation into the causal role of alpha oscillations in attention.
Indexed document: No
Keywords: tACS / Attention / Pre-registration / Alpha oscillations

Final report - An investigation into the causal role of alpha oscillations in attention

Final report - An investigation into the causal role of alpha oscillations in attention
DocumentSpatial attention is not affected by alpha or beta transcranial Alternating Current Stimulation: A registered report2023

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-2016-150
Location: BF-GMS
Title:
150 - An investigation into the causal role of alpha oscillations in attention
Duration: 2017-03 - 2023-02
Researcher(s):
Alexander Jones, Jonathan Silas, Lars Wicke
Institution(s): The Behavioural, Affective, and Cognitive Neuroscience research group - BACneuro, Middlesex University London (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Article
Author: Jones, A.
Secondary author(s):
Silas, J., Wicke, L.
Number of reproductions:
1
Keywords:
Alpha oscillations / Attention / Touch / transcranial Alternating Current Stimulation (tACS) / Psychophysiology

Reference code: PT/FB/BL-2016-150.04
Location: BF-GMS
Title:
Spatial attention is not affected by alpha or beta transcranial Alternating Current Stimulation: A registered report
Publication year: 2023
URL:
https://www.sciencedirect.com/science/article/pii/S0010945223000862?via%3Dihub
Abstract/Results: ABSTRACT:
Using Electroencephalography (EEG) an event-related change in alpha activity has been observed over primary sensory cortices during the allocation of spatial attention. This is most prominent during top-down, or endogenous, attention, and nearly absent in bottom-up, or exogenous orienting. These changes are highly lateralised, such that an increase in alpha power is seen ipsilateral to the attended region of space and a decrease is seen contralaterally. Whether these changes in alpha oscillatory activity are causally related to attentional resources, or to perceptual processes, or are simply epiphenomenal, is unknown. If alpha oscillations are indicative of a causal mechanism whereby attention is allocated to a region of space, it remains an open question as to whether this is driven by ipsilateral increases or contralateral decreases in alpha power. This preregistered report set out to test these questions. To do so, we used transcranial Alternating Current Stimulation (tACS) to modulate alpha activity in the somatosensory cortex whilst measuring performance on established tactile attention paradigms. All participants completed an endogenous and exogenous tactile attention task in three stimulation conditions; alpha, sham and beta. Sham and beta stimulation operated as controls so that any observed effects could be attributed to alpha stimulation specifically. We replicated previous behavioural findings in all stimulation conditions showing a facilitation of cued trials in the endogenous task, and inhibition of return in the exogenous task. However, these were not affected by stimulation manipulations. Using Bayes-factor analysis we show strong support for the null hypotheses – that the manipulation of Alpha by tACS does not cause changes in tactile spatial attention. This well-powered study, conducted over three separate days, is an important contribution to the current debate regarding the efficiency of brain stimulation.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Silas, J.
Secondary author(s):
Jones, A., Yarrow, K., Anderson, W.
Document type:
Article
Number of reproductions:
1
Percentiles:
7
Reference:
Silas, J., Jones, A., Yarrow, K., & Anderson, W. (2023). Spatial attention is not affected by alpha or beta transcranial Alternating Current Stimulation: A registered report. Cortex, 164, 33-50. https://doi.org/10.17605/OSF.IO/P7AME
2-year Impact Factor: 3.2|2023
Times cited: 0|2024-02-16
Indexed document: Yes
Quartile: Q1
Keywords: tACS / Tactile attention / Endogenous / Exogenous / Pre-registration

Spatial attention is not affected by alpha or beta transcranial Alternating Current Stimulation: A registered report

Spatial attention is not affected by alpha or beta transcranial Alternating Current Stimulation: A registered report