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Nonverbal working memory of humans and monkeys: rehearsal in the sketchpad?Investigations of working memory tend to focus on the retention of verbal information. The present experiments were designed to characterize the active maintenance rehearsal process used in the retention of visuospatial information. Rhesus monkeys (Macaca mulatta; N = 6) were tested as well as humans (total N = 90) because these nonhuman primates have excellent visual working memory but, unlike humans, cannot verbally recode the stimuli to employ verbal rehearsal mechanisms. A series of experiments was conducted using a distractor-task paradigm, a directed forgetting procedure, and a dual-task paradigm. No evidence was found for an active maintenance process for either species. Rather, it appears that information is maintained in the visuospatial sketchpad without active rehearsal.
Document ID
20040172697
Document Type
Reprint (Version printed in journal)
Authors
Washburn, D. A. (Georgia State University Atlanta 30303, United States)
Astur, R. S.
Rumbaugh, D. M.
Date Acquired
August 22, 2013
Publication Date
March 1, 1998
Publication Information
Publication: Memory & cognition
Volume: 26
Issue: 2
ISSN: 0090-502X
Subject Category
Behavioral Sciences
Funding Number(s)
CONTRACT_GRANT: HD-06016
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Space Human Factors