Reference : Gastric modulation of startle eye blink

	Document type :	Scientific journals : Article
	Discipline(s) :	Social & behavioral sciences, psychology : Neurosciences & behavior
	To cite this reference:	http://hdl.handle.net/10993/31025

Title :	Gastric modulation of startle eye blink
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) >]
	Van Dyck []
	Lutz, Annika [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
	Rost, Silke [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) >]
Publication date :	2017
Journal title :	Biological Psychology
Publisher :	Elsevier Science
Volume :	127
Issue/season :	1
Pages :	25-33
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	0301-0511
City :	Amsterdam
Country :	The Netherlands
Abstract :	[en] Abstract: Previous assessment methods of gastric interoception either rely on self-reports, or imply invasive procedures. We investigated the reliability of startle methodology as a non-invasive alternative for the assessment of afferent gastric signals. Twenty-four participants were tested on three separate days, on which they were requested to ingest water (either 0, 300 or 600 ml), after 8 h of fasting. On each assessment day, eye blink responses (EMG) to 10 acoustic startle stimuli (105 dB) were assessed at 4 measurement points (before, 0, 7, 14 min. after ingestion). Increased normogastric responses (EGG), ratings of satiety and fullness, and higher heart rate variability (RMSSD) suggested effective non-invasive induction of gastric distention. Startle responses were lower directly after ingestion of 600 ml as compared to earlier and later measurements. These results suggest that startle methodology provides a reliable method to investigate afferent gastric signals. It could be useful to study possible dissociations between subjective reports and objective afferent gastric signals in eating or somatoform disorders.
Permalink :	http://hdl.handle.net/10993/31025
DOI :	10.1016/j.biopsycho.2017.05.004

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