Operant conditioning of the latency of a visual evoked potential : independence of early and late components

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dc.contributor.authorWesterberg, Verner Stuarten_US
dc.date.accessioned2024-08-15T20:15:06Z
dc.date.available2024-08-15T20:15:06Z
dc.date.copyright1977en_US
dc.date.issued1977
dc.degree.departmentDepartment of Psychology
dc.degree.levelMaster of Arts M.A.en
dc.description.abstractTwo hooded rats were operantly conditioned for both decreasing (Phase 1), and increasing (Phase 2) the latency of a late component in a photically evoked cortical potential . Reinforcement was under on-line control of a small digital computer with software designed to recognize a specified potential at a specified latency of occurr­ence. Both animals exhibited learning specific to the late compon­ent in Phase 1 as compared to Baseline. Phase 2 conditioning showed that one animal did acquire the reversal task; the second animal showed only marginal learning. On the basis of the results in conditioning, three evoked potential components, one early and two later, were analyzed according to latency, amplitude, and occurrence. All components were shown to be independent of one another in terms of latency and amplitude, and to some degree, in occurrence. It was also shown that the latency and amplitude of the conditioned component were independent of one another. The conclusion reached was that the latency of a component can be shown to be of adaptive significance by itself, and that the process of conditioning changes the significance of the conditioned potential, Thus, each parameter of each potential of the evoked potential has the capability of discrete encoding of behavior which is dependent on the conditioned state.en_US
dc.format.extent116 pages
dc.identifier.urihttps://hdl.handle.net/1828/20078
dc.rightsAvailable to the World Wide Weben_US
dc.titleOperant conditioning of the latency of a visual evoked potential : independence of early and late componentsen_US
dc.typeThesisen_US

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