Document Detail

The effect of an acoustic warning stimulus upon the electrically elicited blink reflex in humans.
MedLine Citation:
PMID:  1946879     Owner:  NLM     Status:  MEDLINE    
In a warned Go/No-Go reaction time experiment blink reflexes were elicited electrically immediately before, at, and shortly after the onset of a low intensity acoustic warning stimulus. This provided the opportunity to study the mutual effects of two stimuli of different modalities arriving at the facial nucleus. The warning stimulus was followed after 3 s by an acoustic response stimulus. Sixteen subjects participated in the experiment. They were informed by the response stimulus if a response (a voluntary blink of the right eye) was required. R1 magnitude was increased from 10 ms to 100 ms after warning stimulus onset, with a pronounced peak at 50 ms. The bilateral late component R2 was enhanced when the reflex eliciting stimulus preceded the warning stimulus. Between 20 ms and 30 ms after warning stimulus onset, R2 returned to control level, whereas an eliciting stimulus presented 40 ms or later after warning stimulus onset produced a pronounced inhibition. R2 latency was facilitated immediately after warning stimulus onset. It was concluded that the mutual effects of stimuli of different modalities can be interpreted only if the moment of arrival at the motor nucleus is taken into consideration.
A J Boelhouwer; R J Teurlings; C H Brunia
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Psychophysiology     Volume:  28     ISSN:  0048-5772     ISO Abbreviation:  Psychophysiology     Publication Date:  1991 Mar 
Date Detail:
Created Date:  1991-12-06     Completed Date:  1991-12-06     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0142657     Medline TA:  Psychophysiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  133-9     Citation Subset:  IM    
Department of Psychology, Tilburg University, The Netherlands.
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MeSH Terms
Arousal / physiology*
Attention / physiology*
Auditory Perception / physiology*
Blinking / physiology*
Facial Nerve / physiology
Pons / physiology
Reaction Time / physiology
Reference Values

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