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What kind of memory supports visual marking?

Authors
  • Jiang, Yuhong
  • Wang, Stephanie W
Type
Published Article
Journal
Journal of experimental psychology. Human perception and performance
Publication Date
Feb 01, 2004
Volume
30
Issue
1
Pages
79–91
Identifiers
PMID: 14769069
Source
Medline
License
Unknown

Abstract

In visual search tasks, if a set of items is presented for 1 s before another set of new items (containing the target) is added, search can be restricted to the new set. The process that eliminates old items from search is visual marking. This study investigates the kind of memory that distinguishes the old items from the new items during search. Using an accuracy paradigm in which perfect marking results in 100% accuracy and lack of marking results in near chance performance, the authors show that search can be restricted to new items not by visual short-term memory (VSTM) of old locations but by a limited capacity and slow-decaying VSTM of new locations and a high capacity and fast-decaying memory for asynchrony.

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