Article (Scientific journals)
Cardiac cycle phases affect auditory-evoked potentials, startle eye blink and pre-motor reaction times in response to acoustic startle stimuli
Schulz, André; Vögele, Claus; Bertsch, Katja et al.
2020In International Journal of Psychophysiology, 157 (1), p. 70-81
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Abstract :
[en] Startle stimuli evoke lower responses when presented during the early as compared to the late cardiac cycle phase, an effect that has been called ‘cardiac modulation of startle’ (CMS). The CMS effect may be associated with visceral-afferent neural traffic, as it is reduced in individuals with degeneration of afferent autonomic nerves. The aim of this study was to investigate whether the CMS effect is due a modulation of only early, automatic stages of stimulus processing by baro-afferent neural traffic, or if late stages are also affected. We, therefore, investigated early and late components of auditory-evoked potentials (AEPs) to acoustic startle stimuli (105, 100, 95 dB), which were presented during the early (R-wave +230 ms) or the late cardiac cycle phase (R +530 ms) in two studies. In Study 1, participants were requested to ignore (n=25) or to respond to the stimuli with button-presses (n=24). In Study 2 (n=23), participants were asked to rate the intensity of the stimuli. We found lower EMG startle response magnitudes (both studies) and slower pre-motor reaction times in the early as compared to the late cardiac cycle phase (Study 1). We also observed lower N1 negativity (both studies), but higher P2 (Study 1) and P3 positivity (both studies) in response to stimuli presented in the early cardiac cycle phase. This AEP modulation pattern appears to be specific to the CMS effect, suggesting that early stages of startle stimulus processing are attenuated, whereas late stages are enhanced by baro-afferent neural traffic
Disciplines :
Neurosciences & behavior
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)
Vögele, Claus ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE)
Bertsch, Katja
Bernard, Sam
Münch, Eva E.
Hansen, Greta ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE)
Naumann, Ewald
Schächinger, Hartmut
External co-authors :
yes
Language :
English
Title :
Cardiac cycle phases affect auditory-evoked potentials, startle eye blink and pre-motor reaction times in response to acoustic startle stimuli
Publication date :
2020
Journal title :
International Journal of Psychophysiology
ISSN :
1872-7697
Publisher :
Elsevier, Amsterdam, Netherlands
Volume :
157
Issue :
1
Pages :
70-81
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 20 August 2020

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