Electrophysiological indices of feedback processing

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dc.contributor.authorChristie, Gregory J
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorSaucier, Deborah
dc.contributor.supervisorTata, Matthew S.
dc.date.accessioned2011-11-03T16:56:18Z
dc.date.available2011-11-03T16:56:18Z
dc.date.issued2010
dc.degree.levelMasters
dc.descriptionxii, 76 leaves : ill. (chiefly col.) ; 29 cmen_US
dc.description.abstractAll sentient organisms use contextual information to assess the amount of reward associated with a particular behavior. Human beings have arguably evolved the most sophisticated of these mechanisms and are capable of integrating information over a long duration of time to accurately assess the expected outcome of a chosen action. This thesis used electroencephalography (EEG) to measure how the human brain processes rewarding and punishing feedback in a gambling-type game with variable risk and reward. Experiment 1 determined that phase-locked (evoked) and non-phase-locked (induced) electroencephalographic activity share only partially overlapping generators in human mediofrontal cortex. Experiment 2 determined that the magnitude of certain evoked EEG components during reward processing tracked subsequent changes in bets placed in the next round. These results extend the body of literature by assessing the overlap between induced and evoked EEG components and the role of evoked activity in affecting future decision making.en_US
dc.identifier.urihttps://hdl.handle.net/10133/2551
dc.language.isoen_USen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, 2010en_US
dc.publisher.departmentDepartment of Neuroscienceen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectMotivation (Psychology) -- Physiological aspectsen_US
dc.subjectReward (Psychology)en_US
dc.subjectFeedback (Psychology)en_US
dc.subjectElectroencephalographyen_US
dc.subjectDecision makingen_US
dc.subjectDissertations, Academicen_US
dc.titleElectrophysiological indices of feedback processingen_US
dc.typeThesisen_US
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