Flexible cognitive resources: Competitive content maps for attention and memory

Steven L. Franconeri*, George A. Alvarez, Patrick Cavanagh

*Corresponding author for this work

Research output: Contribution to journalReview article

149 Scopus citations

Abstract

The brain has finite processing resources so that, as tasks become harder, performance degrades. Where do the limits on these resources come from? We focus on a variety of capacity-limited buffers related to attention, recognition, and memory that we claim have a two-dimensional 'map' architecture, where individual items compete for cortical real estate. This competitive format leads to capacity limits that are flexible, set by the nature of the content and their locations within an anatomically delimited space. We contrast this format with the standard 'slot' architecture and its fixed capacity. Using visual spatial attention and visual short-term memory as case studies, we suggest that competitive maps are a concrete and plausible architecture that limits cognitive capacity across many domains.

Original languageEnglish (US)
Pages (from-to)134-141
Number of pages8
JournalTrends in Cognitive Sciences
Volume17
Issue number3
DOIs
StatePublished - Mar 1 2013

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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