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The visual search task reveals important functions and properties of the spotlight of attention

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The visual search task reveals important functions and properties of the spotlight of attention

Panagopoulos, Afroditi (2003) The visual search task reveals important functions and properties of the spotlight of attention. Masters thesis, Concordia University.

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Abstract

Selective attention can be employed to a restricted region in space or to specific objects. Many properties of the spotlight of attention are not well understood. In the present study, the question examined was whether the putative shape of the attentional spotlight can be determined by endogenous cueing within a visual search paradigm. Moreover, the current investigation examined the role of spatial cueing on the detrimental effect of the irrelevant background elements during a visual search task. The results confirmed that attention was confined to the cued area only. In addition, the cueing technique was successful in partially eliminating the background effect. This study shows that top-down processes, just like bottom-up processes, can be manipulated. Most importantly, this study has provided converging evidence for an attentional spotlight whose shape can be adjusted flexibly by appropriate endogenous cueing. The present experiments have shed some light into the roles that attention plays in perception.

Divisions:Concordia University > Faculty of Arts and Science > Psychology
Item Type:Thesis (Masters)
Authors:Panagopoulos, Afroditi
Pagination:x, 105 p. : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.A.)
Program:Psychology
Date:2003
Thesis Supervisor(s):Von Grunau, Michael
ID Code:2201
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:26
Last Modified:08 Dec 2010 10:25
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