The effects of expectancy on inhibition of return

Shai Gabay, Avishai Henik

Research output: Contribution to journalArticlepeer-review


This research examined the influence of cue temporal predictability on inhibition of return (IOR). In exogenous attention experiments, the cue that summons attention is non-informative as to where the target will appear. However, it is predictive as to when it will appear. Because in most experiments there are equal numbers of trials for each cue-target interval (SOA - stimulus onset asynchrony), as time passes from the appearance of the cue, the probability of target presentation increases. Predictability was manipulated by using three SOA distributions: non-aging, aging and accelerated-aging. A robust IOR was found that was not modulated by temporal information within a trial. These results show that reflexive effects are relatively protected against modulation by higher volitional processes.

Original languageEnglish
Pages (from-to)1478-1486
Number of pages9
Issue number3
StatePublished - Mar 2008
Externally publishedYes


  • Expectancy
  • IOR
  • Non-aging distributions
  • Spatial attention
  • Temporal predictability

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Developmental and Educational Psychology
  • Linguistics and Language
  • Cognitive Neuroscience


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