Document Detail

Dissociating beliefs about heart rates and actual heart rates in patients with cardiac pacemakers.
MedLine Citation:
PMID:  10352557     Owner:  NLM     Status:  MEDLINE    
Performance on heartbeat counting tasks is usually interpreted in terms of cardiac sensitivity. We tested the hypothesis that heartbeat counting is influenced by beliefs about heart rates by dissociating beliefs about heart rates and actual heart rates. In a within-subjects design, heart rates of 50 patients with cardiac pacemakers were set to a low (50 bpm), medium (75 bpm), or high (110 bpm) pacing rate unknown to the patients via remote control while they performed a heartbeat tracking task. Results showed that patients' heartbeat counting did not follow the shifts in their actual heart rates adequately, although their overall performance was comparable to that of young and healthy control participants. As a result, tracking scores decreased significantly in the high pacing rate condition where beliefs about heart rates and actual heart rates were most extremely dissociated. The findings suggest that tracking scores reflect beliefs about heart rates rather than cardiac sensitivity.
S Windmann; O W Schonecke; G Fröhlig; G Maldener
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Psychophysiology     Volume:  36     ISSN:  0048-5772     ISO Abbreviation:  Psychophysiology     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-07-06     Completed Date:  1999-07-06     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0142657     Medline TA:  Psychophysiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  339-42     Citation Subset:  IM    
Department of Cognitive Science, University of California-San Diego 92122-0515, USA.
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MeSH Terms
Analysis of Variance
Cardiac Pacing, Artificial / psychology*
Case-Control Studies
Heart Rate* / physiology
Perception* / physiology
Psychophysiology / methods,  standards*
Research Design / standards*

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