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| Research article summary (published 30 Dec 2001): |
Effects of affective picture viewing and imagery on respiratory resistance in nonasthmatic individuals.
Full Abstract
We studied the modulation of oscillatory resistance (R(os)) by viewing and imagery of affective pictures. Thirty nonasthmatic participants viewed 36 affective slides precategorized as positive, neutral, and negative in valence. Each picture was presented for 15 s, followed by an imagery epoch of 15 s. R(os), facial EMGs, respiration, skin conductance response, heart period, and respiratory sinus arrhythmia were measured throughout the session, as well as viewing time and ratings of pleasure, arousal, and interest. Increases of R(os) were observed for negative pictures, and little changes for positive or neutral pictures. Other physiological parameters did not mirror this response pattern, leaving no clear indication for a ventilatory or vagal origin of R(os) changes. Overall differences between behavioral contexts of visual processing and imagery revealed evidence for a coupling of cardiac and respiratory responses, which included changes in R(os). The findings in R(os) are discussed in the light of earlier discrepant findings on the affective modulation of airway resistance and cardiac activity.
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Author information
Author/s: Ritz, Thomas (T); Alatupa, Saija (S); Thöns, Miriam (M); Dahme, Bernhard (B);
Affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University and VA Palo Alto Health Care System, Palo Alto 94304, California, USA. tritz@stanford.edu
Journal and publication information
Publication Type: Clinical Trial; Journal Article
Journal: Psychophysiology (Psychophysiology), published in United States. (Language: eng)
Reference: 2002-Jan; vol 39 (issue 1) : pp 86-94
Dates: Created 2002/09/02; Completed 2002/10/02; Revised 2004/11/17;
PMID: 12206299, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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