Sheer, Daniel E.2022-09-192022-09-19197619762669175https://hdl.handle.net/10657/11429An experiment by Kilpatrick, in which tonic and phasic measures of electrodermal activity were shown to diverge as a function of psychological stress and cognitive activity, was replicated, using a perceptual task. Sixteen high ego strength subjects and 16 low ego strength subjects were evenly divided into high stress and low stress groups. The high stress group was given ego-threatening instructions, while the low stress group was given neutral instructions. All subjects then performed on a perceptual task, the Witkin Embedded Figures. Electrodermal activity was monitored throughout the experiment. On the basis of their performance on the task, subjects were divided Into Field Independent- Field Dependent groups. Three hypotheses were tested: (1) Tonic responsivity is related to non-emotional or perceptual tasks, while phasic responsivity Is related to the emotional reaction to psychological threat. (2) High ego strength subjects are more responsive in both tonic and phasic activity than are low ego strength subjects. (3) Field Independent subjects are more responsive in both tonic and phasic activity than are Field Dependent subjects. None of these hypotheses were confirmed.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Psychosocial stressPhysical responsesThesisreformatted digital