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Trials effects in the evoked cardiac response under processing load

Journal Article


Abstract


  • Recent studies of the phasic evoked cardiac response in the OR context have identified the deceleratory heart rate component with primary bradycardia. Cardiac deceleration thus appears to reflect stimulus registration, a preliminary process in OR elicitation. Situational factors may lead to an additional acceleratory component, probably reflecting cognitive processing demand. The present study investigated trials effects in these two components of a complex cardiac response, reflecting both stimulus and situational factors. The deceleratory component failed to show a simple trials effect, a finding compatible with the concept of stimulus registration. In contrast, the acceleratory component increased over trials, compatible with its hypothesized reflection of cognitive processing. © 1985, Psychonomic Society, Inc.. All rights reserved.

Publication Date


  • 1984

Citation


  • Barry, R. J. (1984). Trials effects in the evoked cardiac response under processing load. Physiological Psychology, 12(4), 315-318. doi:10.3758/BF03327206

Scopus Eid


  • 2-s2.0-0021701222

Start Page


  • 315

End Page


  • 318

Volume


  • 12

Issue


  • 4

Abstract


  • Recent studies of the phasic evoked cardiac response in the OR context have identified the deceleratory heart rate component with primary bradycardia. Cardiac deceleration thus appears to reflect stimulus registration, a preliminary process in OR elicitation. Situational factors may lead to an additional acceleratory component, probably reflecting cognitive processing demand. The present study investigated trials effects in these two components of a complex cardiac response, reflecting both stimulus and situational factors. The deceleratory component failed to show a simple trials effect, a finding compatible with the concept of stimulus registration. In contrast, the acceleratory component increased over trials, compatible with its hypothesized reflection of cognitive processing. © 1985, Psychonomic Society, Inc.. All rights reserved.

Publication Date


  • 1984

Citation


  • Barry, R. J. (1984). Trials effects in the evoked cardiac response under processing load. Physiological Psychology, 12(4), 315-318. doi:10.3758/BF03327206

Scopus Eid


  • 2-s2.0-0021701222

Start Page


  • 315

End Page


  • 318

Volume


  • 12

Issue


  • 4