Relationship between heart rate and muscular activity within a classical conditioning paradigm.

1 January 1971

journal article
Published by American Psychological Association (APA) in Journal of Experimental Psychology

Vol. 90 (2) , 222-226
https://doi.org/10.1037/h0031552

Abstract

Tested P. Obrist's (see pa, vol. 42:11773) theory of somatic coupling by manipulation of muscular activity within a delay classical conditioning paradigm. 30 male undergraduates were assigned to a muscularly tensed group, a muscularly relaxed group, and a control group (given no instructions pertaining to muscular activity). Stimulus presentation was 10 cs-alone trials, 20 cs-ucs trials, and 10 additional cs-alone trials. Instructions for muscular activity were interpolated between the 1st 2 phases. Results support the theory. Only those groups showing significant changes in muscular activity over phases exhibited significant heart rate changes, and the correlations were guite high. Respiration rate and amplitude were not significantly different among groups. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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