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Title page for ETD etd-03252013-203220


Type of Document Dissertation
Author Williams, Melonie
Author's Email Address melonie.williams@vanderbilt.edu
URN etd-03252013-203220
Title Selection Mechanisms of Vision: Perceptual Input vs. Working Memory Maintenance
Degree PhD
Department Psychology
Advisory Committee
Advisor Name Title
Geoffrey Woodman Committee Chair
Edward Awh Committee Member
Gordon Logan Committee Member
Tim McNamara Committee Member
Keywords
  • Working Memory
  • Maintenance
  • Attention
  • Perceptual Input
  • Visual Selection
Date of Defense 2013-03-12
Availability unrestricted
Abstract
This dissertation was designed to assess the relationship between perceptual selection and working memory maintenance. Two models of working memory assert that we use attentional selection to determine what information enters, and is subsequently stored, in visual working memory. However, unitary models propose that one mechanism is used for the selection of perceptual input and also the temporary maintenance of information while a multi-component model proposes separate mechanisms for each process. Using event-related potentials and eye-tracking techniques, a series of experiments contrasted the predictions of the models and found support in favor a single selection mechanism.
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