September 2015
Volume 15, Issue 12
Free
Vision Sciences Society Annual Meeting Abstract  |   September 2015
Competitive interactions affect working memory precision
Author Affiliations
  • Fiona McNab
    University of Birmingham
Journal of Vision September 2015, Vol.15, 1405. doi:10.1167/15.12.1405
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to Subscribers Only
      Sign In or Create an Account ×
    • Get Citation

      Fiona McNab; Competitive interactions affect working memory precision. Journal of Vision 2015;15(12):1405. doi: 10.1167/15.12.1405.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Competition between visually presented stimuli is associated with reduced neural firing, longer reaction time and reduced BOLD response. It is not known whether the effects of competition extend to working memory (WM), nor whether competition represents a common limiting-factor, compromising both WM performance in the absence of distraction, as well as effective distractor exclusion. Here we measured WM precision for an item placed with small or large spatial separation from another item to be remembered, or from a distractor. In both cases, WM precision was significantly reduced for small relative to large spatial separation. This indicates that the effects of competition extend to WM precision, and identifies competition as a potential common mechanism affecting WM regardless of whether the two items being encoded are both to be remembered, or whether one is a distractor. Such a mechanism is a potential basis for the association identified between distractor exclusion and WM in the absence of distraction.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×