A Look at Learning in Repeated Search: The Role of Memory and Competition

Persistent Link:
http://hdl.handle.net/10150/195919
Title:
A Look at Learning in Repeated Search: The Role of Memory and Competition
Author:
Grant, Emily Nicole Skow
Issue Date:
2007
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The role of memory in repeated search tasks is contentious. Wolfe et al. (2000) have argued that participants do not learn a repeated scene and continue to perform a time-consuming search process for hundreds of trials. In contrast, Chun and Jiang (1998, 1999) have shown that search efficiency is improved for repeated versus new scenes and this learning can occur for either spatial layout independent of identity or identity independent of spatial layout. The experiments presented here demonstrate that participants learn a great deal about repeated search displays including the location of a particular item (both identity and location), the relative probability with which an item occurs in a location, and direction from the fixation point to the target. I argue that memory is established for these components and the reactivation of these memories by a repeated search display produces competition. This competitive target verification process takes time and can result in positive search slopes, which have been taken as evidence for memory-free search - a flawed logical argument.
Type:
text; Electronic Dissertation
Keywords:
visual search; memory; learning; competition
Degree Name:
PhD
Degree Level:
doctoral
Degree Program:
Psychology; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Peterson, Mary A.
Committee Chair:
Peterson, Mary A.

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleA Look at Learning in Repeated Search: The Role of Memory and Competitionen_US
dc.creatorGrant, Emily Nicole Skowen_US
dc.contributor.authorGrant, Emily Nicole Skowen_US
dc.date.issued2007en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe role of memory in repeated search tasks is contentious. Wolfe et al. (2000) have argued that participants do not learn a repeated scene and continue to perform a time-consuming search process for hundreds of trials. In contrast, Chun and Jiang (1998, 1999) have shown that search efficiency is improved for repeated versus new scenes and this learning can occur for either spatial layout independent of identity or identity independent of spatial layout. The experiments presented here demonstrate that participants learn a great deal about repeated search displays including the location of a particular item (both identity and location), the relative probability with which an item occurs in a location, and direction from the fixation point to the target. I argue that memory is established for these components and the reactivation of these memories by a repeated search display produces competition. This competitive target verification process takes time and can result in positive search slopes, which have been taken as evidence for memory-free search - a flawed logical argument.en_US
dc.typetexten_US
dc.typeElectronic Dissertationen_US
dc.subjectvisual searchen_US
dc.subjectmemoryen_US
dc.subjectlearningen_US
dc.subjectcompetitionen_US
thesis.degree.namePhDen_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplinePsychologyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorPeterson, Mary A.en_US
dc.contributor.chairPeterson, Mary A.en_US
dc.contributor.committeememberGlisky, Elizabeth L.en_US
dc.contributor.committeememberGomez, Rebeccaen_US
dc.identifier.proquest2364en_US
dc.identifier.oclc659748248en_US
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