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Visual perception of shape and area ...

Jewell, Stephen W.

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Visual perception of shape and area in random dot patterns.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Visual perception of shape and area in random dot patterns./
Author:	Jewell, Stephen W.
Description:	50 p.
Notes:	Adviser: James R. Pomerantz.
Contained By:	Dissertation Abstracts International68-03B.
Subject:	Psychology, Cognitive. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3257336

Visual perception of shape and area in random dot patterns.
Jewell, Stephen W.

Visual perception of shape and area in random dot patterns. - 50 p.

Adviser: James R. Pomerantz.

Thesis (Ph.D.)--Rice University, 2007.

I report five experiments in an exploratory study to investigate the perceptual grouping processes by better understanding how a simple pattern of dots comes to be represented in visual memory. Subjects were briefly shown a random set of point-like dots which were then masked and subsequently reappeared with a possible added or deleted dot. Subjects detected changes to peripheral dots more reliably than changes to interior dots, even those much closer to fixation. The most peripheral points appear to be objectized in a process that might be analogized as shrink wrapping. The circumscribed shape was memorable and easily recalled despite brief presentations. These data suggest a preattentive perceptual process beginning in the periphery and proceeding inward toward fixation as the visual system records the shape of the pattern.Subjects--Topical Terms:

1017810
Psychology, Cognitive.

Visual perception of shape and area in random dot patterns.
LDR:01669nam 2200265 a 45 001 940376
005 20110518
008 110518s2007 ||||||||||||||||| ||eng d
035 $a (UMI)AAI3257336
035 $a AAI3257336
040 $a UMI $c UMI
100 1 $a Jewell, Stephen W. $3 1264502
245 1 0 $a Visual perception of shape and area in random dot patterns.
300 $a 50 p.
500 $a Adviser: James R. Pomerantz.
500 $a Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1954.
502 $a Thesis (Ph.D.)--Rice University, 2007.
520 $a I report five experiments in an exploratory study to investigate the perceptual grouping processes by better understanding how a simple pattern of dots comes to be represented in visual memory. Subjects were briefly shown a random set of point-like dots which were then masked and subsequently reappeared with a possible added or deleted dot. Subjects detected changes to peripheral dots more reliably than changes to interior dots, even those much closer to fixation. The most peripheral points appear to be objectized in a process that might be analogized as shrink wrapping. The circumscribed shape was memorable and easily recalled despite brief presentations. These data suggest a preattentive perceptual process beginning in the periphery and proceeding inward toward fixation as the visual system records the shape of the pattern.
590 $a School code: 0187.
650 4 $a Psychology, Cognitive. $3 1017810
650 4 $a Psychology, Experimental. $3 517106
690 $a 0623
690 $a 0633
710 2 $a Rice University. $3 960124
773 0 $t Dissertation Abstracts International $g 68-03B.
790 $a 0187
790 1 0 $a Pomerantz, James R., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3257336