Short-term food deprivation increases amplitudes of heartbeat-evoked potentials

Schulz, André; Ferreira de Sá, D. S.; Dierolf, Angelika; Lutz, Annika; Van Dyck, Zoé; Vögele, Claus; Schächinger, H.

doi:10.1111/psyp.12388

Reference : Short-term food deprivation increases amplitudes of heartbeat-evoked potentials


	Document type :	Scientific journals : Article
	Discipline(s) :	Social & behavioral sciences, psychology : Neurosciences & behavior
	To cite this reference:	http://hdl.handle.net/10993/18576

Title :	Short-term food deprivation increases amplitudes of heartbeat-evoked potentials
Language :	English
Author, co-author :	Schulz, André [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Ferreira de Sá, D. S. []
	Dierolf, Angelika [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Lutz, Annika [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Van Dyck, Zoé [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Vögele, Claus [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Schächinger, H. []
Publication date :	2015
Journal title :	Psychophysiology
Publisher :	Cambridge University Press
Volume :	52
Issue/season :	5
Pages :	695-703
Peer reviewed :	Yes (verified by ORBi^lu)
Audience :	International
ISSN :	0048-5772
City :	New York
Country :	NY
Abstract :	[en] Nutritional state, i.e. fasting or non-fasting, may affect the processing of interoceptive signals, but mechanisms underlying this effect remain unclear. We investigated 16 healthy women on two separate days: when satiated (standardized food intake) and after an 18 h food deprivation period. On both days, heartbeat-evoked potentials (HEPs) and cardiac and ANS activation indices (heart rate, nLF HRV) were assessed. The HEP is an EEG pattern that is considered an index of cortical representation of afferent cardiovascular signals. Average HEP activity (R-wave +455-595 ms) was enhanced during food deprivation compared to normal food intake. Cardiac activation did not differ between nutritional conditions. Our results indicate that short-term food deprivation amplifies an electrophysiological correlate of the cortical representation of visceral-afferent signals originating from the cardiovascular system. This effect could not be attributed to increased cardiac activation, as estimated by heart rate and nLF HRV, after food deprivation.
Permalink :	http://hdl.handle.net/10993/18576
DOI :	10.1111/psyp.12388

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