The effects of expectancy and autonomy on neural measures of motivation

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dc.contributor Hart, William P.
dc.contributor Esco, Michael R.
dc.contributor.advisor Gable, Philip A. Wilhelm, Ricardo 2019-08-01T14:23:43Z 2019-08-01T14:23:43Z 2019
dc.identifier.other u0015_0000001_0003267
dc.identifier.other Wilhelm_alatus_0004M_13748
dc.description Electronic Thesis or Dissertation
dc.description.abstract Motivation drives humans to attain desired goals or objects by enhancing our attention, facilitating faster physical movement, and reinforcing behaviors that lead to goal acquisition. Behavioral and physiological studies find evidence for this effect by manipulating extrinsic motivation using pre-goal states and implementing rewards. Further research on motivation suggests intrinsic motivation also has similar behavioral effects to extrinsic motivation. The current studies examined whether performance expectancy and autonomy enhance motivation using behavioral and electroencephalography (EEG) measures. Study 1 manipulated performance expectations that a flanker task would be difficult or easy based on a social comparison. Study 2 manipulated autonomy by giving participants a choice of task and self-controlled feedback. Study 1 results revealed greater neural motor-action preparation and feedback processing to difficult (vs. easy) expectancy trials. Difficult expectancy also narrowed attention but did not reveal performance differences with RT. Participants also self-reported marginally greater high-approach motivation during difficult (vs. easy) expectancy. Study 2 results revealed no difference in neural motor-action preparation and feedback processing to autonomy (vs. no autonomy). Autonomy also broadened (rather than narrowed) attention. Autonomy also increased response times to a flanker task. Participants self-reported marginally more low-approach motivation during autonomy (vs. no autonomy). Taken together, results suggest not all forms of intrinsic motivation influence motivation in similar ways. Based on neural and behavioral measures, it seems performance expectancy enhances high motivational intensity, while autonomy enhances low motivational intensity.
dc.format.extent 55 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Psychology
dc.subject.other Experimental psychology
dc.title The effects of expectancy and autonomy on neural measures of motivation
dc.type thesis
dc.type text University of Alabama. Department of Psychology Psychology The University of Alabama master's M.A.

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