The mechanism underlying inhibition of saccadic return

Casimir J. H. Ludwig*, Simon Farrell, Lucy A. Ellis, Iain D. Gilchrist

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

46 Citations (Scopus)

Abstract

Human observers take longer to re-direct gaze to a previously fixated location. Although there has been some exploration of the characteristics of inhibition of saccadic return (ISR), the exact mechanisms by which ISR operates are currently unknown. In the framework of accumulation models of response times, in which evidence is integrated over time to a response threshold, ISR Could reflect a reduction in the rate of accumulation for saccades to return locations or an increase in the effective criterion for response. In two experiments, participants generated sequences of three saccades, in response to a peripheral or a central cue. ISR occurred across these manipulations: saccade latency was consistently increased for movements to the immediately previously fixated location. Latency distributions from individual observers were fit with a Linear Ballistic Accumulator model. ISR was best accounted for as a change in the accumulation rate. We suggest this parameter represents the overall desirability of a particular course of action, the evidence for which may be derived from a variety of sensory and non-sensory sources. (C) 2009 Elsevier Inc. All rights reserved.

Translated title of the contributionThe mechanism underlying inhibition of saccadic return
Original languageEnglish
Pages (from-to)180-202
Number of pages23
JournalCognitive Psychology
Volume59
Issue number2
Early online date10 Jun 2009
DOIs
Publication statusPublished - Sep 2009

Structured keywords

  • Memory

Keywords

  • Inhibition of return
  • Saccadic eye movements
  • Computational model
  • Temporal integration
  • Reaction time
  • Latency distribution
  • RESPONSE-TIME
  • FORAGING FACILITATOR
  • PERCEPTUAL DECISION
  • SUPERIOR COLLICULUS
  • 2-CHOICE DECISIONS
  • NEURONAL-ACTIVITY
  • NEURAL-CONTROL
  • EYE-MOVEMENTS
  • VISUAL-SEARCH
  • ATTENTION

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