Author

Daniel Parr

Date of Award

2019

Document Type

Thesis

Degree Name

Bachelors

Department

Social Sciences

First Advisor

Cook, Peter

Area of Concentration

Psychology

Abstract

This thesis examines the representations of stimulus value that guide goal-directed behavior. Evidence is reviewed regarding the process by which stimuli acquire valence, and the affective and physiological events that underlie this process. “Reenactment accounts” - which hold that the representation of the value of a stimulus relies on the reenactment of the affective states that have been associated with the stimulus in the past - are then discussed. Using neuroimaging studies on the role of ventral prefrontal cortex in evaluation, and other evidence, an argument is made against these accounts. Finally, a study designed to test the importance of reenactment in evaluation is described. Participants completed a decision-making task based on the Iowa Gambling Task, while undergoing a breathing manipulation designed to influence affect through physiological feedback. The breathing manipulation did not produce the intended physiological effects; therefore, the results did not provide insight into the importance of reenactment. Issues with the breathing manipulation, and ways to resolve them, are discussed.

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