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Social synchronization of brain activity increases during eye-contact

2022

BIAL Foundation Archive
- BIAL Grants
  - 2018 Grants
    - 138 - The neural signatures of leadership: Two-brain directed synchronization during eye contact
      - Social synchronization of brain activity increases during eye-contact

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-2018
Location:	BF-GMS
Title:	2018 Grants
Start date:	2019-01

Reference code:	PT/FB/BL-2018-138
Location:	BF-GMS
Title:	138 - The neural signatures of leadership: Two-brain directed synchronization during eye contact
Duration:	2019-07 - 2023-09
Researcher(s):	Caroline Di Bernardi Luft, Isabelle Mareschal
Institution(s):	School of Biological and Chemical Sciences, Queen Mary University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Language:	eng
Author:	Luft, C. D. B.
Secondary author(s):	Mareschal, I.
Number of reproductions:	1
Keywords:	Brain-to-brain synchronization / Electroencephalogram (EEG) / Hyperscanning / Eye-tracking / Psychophysiology

Reference code:	PT/FB/BL-2018-138.03
Location:	BF-GMS
Title:	Social synchronization of brain activity increases during eye-contact
Publication year:	2022
URL:	https://www.nature.com/articles/s42003-022-03352-6
Abstract/Results:	Humans make eye-contact to extract information about other people’s mental states, recruiting dedicated brain networks that process information about the self and others. Recent studies show that eye-contact increases the synchronization between two brains but do not consider its effects on activity within single brains. Here we investigate how eye-contact affects the frequency and direction of the synchronization within and between two brains and the corresponding network characteristics. We also evaluate the functional relevance of eye-contact networks by comparing inter- and intra-brain networks of friends vs. strangers and the direction of synchronization between leaders and followers. We show that eye-contact increases higher inter- and intra-brain synchronization in the gamma frequency band. Network analysis reveals that some brain areas serve as hubs linking within- and between-brain networks. During eye-contact, friends show higher inter-brain synchronization than strangers. Dyads with clear leader/follower roles demonstrate higher synchronization from leader to follower in the alpha frequency band. Importantly, eye-contact affects synchronization between brains more than within brains, demonstrating that eye-contact is an inherently social signal. Future work should elucidate the causal mechanisms behind eye-contact induced synchronization.
Accessibility:	Document exists in file
Language:	eng
Author:	Luft, C. D. B.
Secondary author(s):	Zioga, I., Giannopoulos, A., Di Bona, G., Binetti, N., Civilini, A., Latora, V., Mareschal, I.
Document type:	Article
Number of reproductions:	1
Reference:	Luft, C. D. B., Zioga, I., Giannopoulos, A., Di Bona, G., Binetti, N., Civilini, A., Latora, V. & Mareschal, I. (2022). Social synchronization of brain activity increases during eye-contact. Communications Biology, 5, 412. https://doi.org/10.1038/s42003-022-03352-6
2-year Impact Factor:	5.900\|2022
Times cited:	18\|2025-02-17
Indexed document:	Yes
Quartile:	Q1
Keywords:	Eye-contact / Brain activity / Social syncchronization
Social synchronization of brain activity increases during eye-contact