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Full-Text Articles in Social and Behavioral Sciences
Attitudes To The Right: Evaluative Processing Is Associated With Lateralized Late Positive Event-Related Brain Potentials, John T. Cacioppo, Stephen L. Crites, Wendy L. Gardner
Attitudes To The Right: Evaluative Processing Is Associated With Lateralized Late Positive Event-Related Brain Potentials, John T. Cacioppo, Stephen L. Crites, Wendy L. Gardner
Stephen L Crites Jr.
The authors recently developed a paradigm to investigate the evaluative categorization stage of attitudes using event-related brain potentials (ERPs). The present series of 5 studies with a total of 118 Ss extended this approach by analyzing the spatial topography of the ERP over the lateral scalp region to address complementary questions regarding the nature of operations underlying the evaluative categorization stage of attitude processing. Consistent with the hypothesis that evaluative categorizations engage mechanisms associated with hedonic or global language processing, results revealed that the standardized amplitudes of the late positive potential of the ERP during evaluative categorization were larger over …
Electrocortical Differentiation Of Evaluative And Nonevaluative Categorizations, Stephen L. Crites, John T. Cacioppo
Electrocortical Differentiation Of Evaluative And Nonevaluative Categorizations, Stephen L. Crites, John T. Cacioppo
Stephen L Crites Jr.
The evaluative categorizations that underlie affective and attitudinal judgments have often been equated with nonevaluative categorizations despite the central importance of evaluative processes for survival. In the present experiment, a late positive potential (LPP) of the event-related brain potential elicited when participants evaluatively categorized food items as positive or nonpositive was compared with the LPP elicited when participants semantically (i.e., nonevaluatively) categorized food items as vegetable or nonvegetable. Results revealed that evaluative categorizations evoked an LPP that was relatively larger over the right than the left scalp regions compared with the LPP evoked by nonevaluative categorizations. This finding provides evidence …