An assessment, of fixed-capacity models of visual working memory

Jeffrey N. Rouder*, Richard D. Morey, Nelson Cowan, Christopher E. Zwilling, Candice C. Morey, Michael S. Pratte

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Visual working memory is often modeled as having a fixed number of slots. We test this model by assessing the receiver operating characteristics (ROC) of participants in a visual-working-memory change-detection task. ROC plots yielded straight lines with a slope of 1.0, a tell-tale characteristic of all-or-none mnemonic representations. Formal model assessment yielded evidence highly consistent with a discrete fixed-capacity model of working memory for this task.

Original languageEnglish
Pages (from-to)5975-5979
Number of pages5
JournalProceedings of the National Academy of Sciences
Volume105
Issue number16
DOIs
Publication statusPublished - 22 Apr 2008

Keywords

  • STORAGE
  • SHORT-TERM-MEMORY
  • LIMITS
  • working memory
  • short-term memory
  • FEATURES
  • mathematical models of memory
  • capacity
  • ATTENTION
  • NUMBER

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