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Final report - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain interactions

2019

BIAL Foundation Archive
- BIAL Grants
  - 2016 Grants
    - 088 - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain interactions
      - Final report - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain interactions

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-2016-088
Location:	BF-GMS
Title:	088 - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain interactions
Duration:	2017-10 - 2019-10
Researcher(s):	Ruben Azevedo, Emmanouil Tsakiris, Valerio Vallani
Institution(s):	Department of Psychology, Royal Holloway, University of London (UK)
Contents:	Contents: Application form Correspondence Research Funding Agreement Progress report Final report Articles
Author:	Azevedo, R.
Secondary author(s):	Tsakiris, M.
Number of reproductions:	1
Keywords:	Interoceptive accuracy / Heart / Vagus nerve / Cardiac cycle / Psychophysiology

Reference code:	PT/FB/BL-2016-088.01
Location:	BF-GMS
Title:	Final report - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain interactions
Publication year:	2019
Abstract/Results:	ABSTRACT Interoception is the body-to-brain axis of sensations originating from the internal body organs signalling their physiological state. Neurally, these visceral signals are mainly conveyed through the vagus nerve to the Nucleus Tractus Solitarius in the brainstem from where they are relayed to regions such as the locus-coerelous and the amygdala and, through thalamocortical projections, to higher order structures such as the insula. However, despite the recognized importance of the vagus nerve in the conduction and regulation of autonomic signals, experimental evidence of its role in bringing these signals into consciousness and in emotional processing is still lacking. Here, we investigated the impact of non-invasive stimulation of the auricular branch of the vagus nerve (tVNS) in the modulation of interoceptive information and emotional processing. In Study 1 we show that tVNS is associated with improved performance in a task assessing the ability to consciously perceive heartbeats. Study 2 used an experimental technique that capitalizes on natural fluctuations of arterial baroreceptor firing to show that tVNS modulates the impact of afferent cardiac signals in the processing threat cues. Study 3 employed a task known to rely on the locus coeruleus-norepinephrine system to show the effectiveness of a novel rapid event-related stimulation protocol. Study 4 explored the potential role of tVNS in physiological and subjective empathic reactivity to others’ pain but did not find significant effects. Together, these findings enhance our understanding of the mechanisms underlying the interoceptive and emotional processing, and demonstrate the potential of tVNS as an important tool to investigate brain-body interactions.
Accessibility:	Document exists in file
Language:	eng
Author:	Azevedo, R.
Secondary author(s):	Tsakiris, M.
Document type:	Final report
Number of reproductions:	1
Reference:	Azevedo, R., & Tsakiris, M. (2019). Final report - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain.
Indexed document:	No
Keywords:	tVNS / Vagus nerve stimulation / Interoception / Emotion processing / Brain-body
Final report - The interoceptive self: Transcutaneous vagus nerve stimulation as a new tool to investigate heart-brain