A direct assessment of the role of expectation in inhibition of return.

A direct assessment of the role of expectation in inhibition of return. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

A direct assessment of the role of expectation in inhibition of return. Abstract Text:

Thomas M Spalek,

An object hidden among distractors can be found more efficiently if previously searched locations are not reinspected. The inhibition-of-return (IOR) phenomenon indexes the tendency to avoid reinspections. Two accounts of IOR, that it is due to inhibition and that it is due to expectation, are generally regarded as incompatible. The relevant evidence to date, however, has been indirect: Inhibition or expectation has been inferred from response times or similar indirect measures. This article reports the first direct measure of IOR, obtained by asking observers to predict the location of the next target in a display containing eight possible locations on an imaginary circle. On any given trial, the previously cued location was chosen less frequently (impairment)--and the opposite location was chosen more frequently (facilitation)--than chance (choice of all other locations was at chance). The impairment is consistent with both inhibition and expectation accounts; the facilitation is consistent only with expectation accounts. This work also shows that inhibition and expectation are not necessarily incompatible: Implementing expectations may entail inhibiting previously cued locations.

A direct assessment of the role of expectation in inhibition of return. Publishing Authors By Initials

TM Spalek,

For similar psychological phenomena and processes: mental processes: perception: visual perception research abstracts see: psychological phenomena and processes: mental processes: perception: visual perception research

PUBMED ID PMID:

MEDLINE DATE:

A direct assessment of the role of expectation in inhibition of return. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Psychological science : a journal of the American

VOLUME: 18

Page Numbers: 783-7

Journal Abbreviation:

ISSN: 0956-7976

DAY: 30

MONTH: Sep

YEAR: 2007

A direct assessment of the role of expectation in inhibition of return. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9007542

A direct assessment of the role of expectation in inhibition of return. Keywords Mesh Terms:

KEYWORDS: Visual Perception

MESH TERMS: physiology

Chemical & Substance for Abstract: A direct assessment of the role of expectation in inhibition of return. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for A direct assessment of the role of expectation in inhibition of return.

AFFILIATION: Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada. tspalek@sfu.ca

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Psychol Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

A direct assessment of the role of expectation in inhibition of return Related Publications

• A direct assessment of the role of expectation in inhibition of return.