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Department of Psychology

Reaction time, performance and level of physiological arousal

Abstract

dc:description.abstract

30 Male Students were used as subjects in a study to assess the effects of physiological arousal, induced by means of a placebo injection, upon visual reaction· time. Two levels of task difficulty were employed: a two-choice test requiring manual responses and a four-choice test, in which the additional two peripheral stimuli were responded to by foot pedals. Manifest Anxiety scores were used as a means to categorize subjects and allow for individual differences. EEG was monitered as a controlling measure for each subject. Pulse rates, palmar sweat index and blood pressures were used as measures of physiological arousal. Results were interpreted in terms of the YerkesDodson principle.

Degree

thesis:*
Grantor dc:publisher.institution
Department of Psychology
Year dc:date.issued
1973

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Ellis-Smith, Michael John

Rights

Language dc:language.iso
eng

Identifiers

dc:identifier.*
Handle dc:identifier.uri
http://hdl.handle.net/11427/17719
OAI identifier oai:identifier
oai:open.uct.ac.za:11427/17719

Chain of custody

source
Harvested from
University of Cape Town
Base URL
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Last updated
2026-07-22
Source record
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citation

Ellis-Smith, Michael John. Reaction time, performance and level of physiological arousal. Department of Psychology, 1973. http://hdl.handle.net/11427/17719