UnivTrevesV1, Main, Exploration, bibRecord, 000F81

Lateralization effects on the cardiac modulation of acoustic startle eye blink

Identifieur interne : 000F81 ( Main/Exploration ); précédent : 000F80; suivant : 000F82

Lateralization effects on the cardiac modulation of acoustic startle eye blink

Auteurs : André Schulz [Allemagne] ; Johanna Lass-Hennemann [Allemagne] ; Steffen Richter [Allemagne] ; Sonja Römer [Allemagne] ; Terry D. Blumenthal [États-Unis] ; Hartmut Sch Chinger [Allemagne]

Source :

Biological psychology [ 0301-0511 ] ; 2009.

RBID : Pascal:09-0162078

Descripteurs français

Pascal (Inist)
- Spécialisation hémisphérique, Latéralité, Réflexe sursaut, Stimulus acoustique, Clignement palpébral, Baroréflexe, Intéroception.

English descriptors

KwdEn :
- Acoustic stimulus, Baroreflex, Blinking, Hemispheric specialization, Interoception, Laterality, Startle reflex.

Abstract

Cardiac modulation of startle eye blink has been introduced as a methodology to reflect baro-afferent signal transmission. Recent studies showed that affective startle modulation is specific to left-ear presentation that may be due to hemispheric specificity in processing emotional-relevant stimuli, similar to the processing of visceral- and baro-afferent stimuli. To explore whether cardiac modulation of startle eye blink is lateralized as well, 37 healthy volunteers received 160 unilateral acoustic startle probes of 105 dB(A) intensity presented to both ears, one at a time. They were elicited 0, 100, 230, and 530 ms after the R-wave of the cardiac cycle. Startle response magnitude was significantly diminished at a latency of 230 ms, which may be due to the baro-afferent neural feedback at this temporal location, but only for left-ear presentation. This lateralization effect in the cardiac modulation of startle eye blink may reflect the previously described advantages of right-hemispheric brain structures in relaying viscero- and baro-afferent signal transmission.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Cardiac modulation of startle eye blink has been introduced as a methodology to reflect baro-afferent signal transmission. Recent studies showed that affective startle modulation is specific to left-ear presentation that may be due to hemispheric specificity in processing emotional-relevant stimuli, similar to the processing of visceral- and baro-afferent stimuli. To explore whether cardiac modulation of startle eye blink is lateralized as well, 37 healthy volunteers received 160 unilateral acoustic startle probes of 105 dB(A) intensity presented to both ears, one at a time. They were elicited 0, 100, 230, and 530 ms after the R-wave of the cardiac cycle. Startle response magnitude was significantly diminished at a latency of 230 ms, which may be due to the baro-afferent neural feedback at this temporal location, but only for left-ear presentation. This lateralization effect in the cardiac modulation of startle eye blink may reflect the previously described advantages of right-hemispheric brain structures in relaying viscero- and baro-afferent signal transmission.</div>
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Lateralization effects on the cardiac modulation of acoustic startle eye blink

Lateralization effects on the cardiac modulation of acoustic startle eye blink

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri