Executive Function, the Positivity Effect and Error-Related Negativity: A Novel Perspective on Cognitive Aging
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2013
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Haverford College. Department of Psychology
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Thesis
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Award
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eng
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Haverford users only
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Abstract
The purpose of the present research was to investigate cognitive aging in the context of the Socioemotional Selectivity Theory (Carstensen, 1992), in order to determine the role of executive function in the manifestation of a positivity effect. Younger and older adults were assessed on measures of cognitive control, including the WAIS, Eriksen and Eriksen’s (1974) letter flanker task, and error-related negativity (ERN). A face flanker task was also administered, in which participants determined the emotion of a target face while ignoring flanking distracter faces (based on methods from Fenske et al., 2003). Finally, a recognition memory task was administered using neutral faces, to see if participants remembered faces differently based on the emotion that they displayed during the face flanker task. Contrary to our hypothesis and previous findings, younger and older adults did not differ in flanker interference nor emotional preference in face flanker and memory tasks. These findings do not support the presence of a positivity bias, though results from EEG methods and previous studies suggest that this may be due to unexpected limitations of the face flanker paradigm.