Document Detail

Startle intensification during painful heat.
MedLine Citation:
PMID:  15102409     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Applying affective-motivational theories of emotions to pain presupposes that the immediate emotional reaction to pain can be conceptualized as an action disposition or an urge to escape. According to these emotion theories, an aversive emotional state should potentiate low-level reflexes with a matching affective tone. In line with this view, this study investigated whether the startle reflex, measured as the EMG peak amplitude of the eyeblink to a white noise burst, was intensified during painful heat. Twenty-four healthy volunteers were exposed twice to four heat stimuli (43, 45, 47 and 49 degrees C; 5 s duration). As predicted, an intensification of the startle reflex to the noise burst was observed during the high-intensity stimuli (47 and 49 degrees C) in comparison with the low-intensity stimuli (43 and 45 degrees C). The startle modulation was effective within a limited temporal window. Five seconds after heat offset, the startle intensification had disappeared.
G Crombez; F Baeyens; D Vansteenwegen; P Eelen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of pain (London, England)     Volume:  1     ISSN:  1090-3801     ISO Abbreviation:  Eur J Pain     Publication Date:  1997  
Date Detail:
Created Date:  2004-04-22     Completed Date:  2004-08-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9801774     Medline TA:  Eur J Pain     Country:  England    
Other Details:
Languages:  eng     Pagination:  87-94     Citation Subset:  -    
Department of Psychology, Katholieke Universiteit te Leuven, Belgium.
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