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Shape from shading in starlings.

Qadri, Muhammad A. J.

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Shape from shading in starlings.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Shape from shading in starlings./
Author:	Qadri, Muhammad A. J.
Description:	64 p.
Notes:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
Subject:	Psychology, Cognitive. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1552991
ISBN:	9781303747212

Shape from shading in starlings.
Qadri, Muhammad A. J.

Shape from shading in starlings. - 64 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.S.)--Tufts University, 2014.

Birds behave as if they quickly and accurately perceive an object-filled visual world. Besides pigeons, however, there is a large gap in our knowledge about the mechanisms of object recognition in avian visual systems. The pattern of shading reflected from object surfaces is one important optical feature providing fundamental information about shape and surface orientation. To better understand how surface and object shading is processed by a passerine species, five starlings were tested with differentially illuminated convex and concave curved surfaces in five experiments using a simultaneous visual discrimination procedure. We found that starlings rapidly learned this type of visual discrimination in a manner suggesting that the starlings perceived these illuminated surfaces as three-dimensional surfaces containing curved shapes. The patterns of these results were highly similar to those established from pigeons tested with identical stimuli, indicating that the relative shading is a highly salient feature for shape processing in birds.

ISBN: 9781303747212Subjects--Topical Terms:

1017810
Psychology, Cognitive.

Shape from shading in starlings.
LDR:01867nam a2200289 4500 001 1967241
005 20141112080245.5
008 150210s2014 ||||||||||||||||| ||eng d
020 $a 9781303747212
035 $a (MiAaPQ)AAI1552991
035 $a AAI1552991
040 $a MiAaPQ $c MiAaPQ
100 1 $a Qadri, Muhammad A. J. $3 2104196
245 1 0 $a Shape from shading in starlings.
300 $a 64 p.
500 $a Source: Masters Abstracts International, Volume: 52-05.
500 $a Adviser: Robert G. Cook.
502 $a Thesis (M.S.)--Tufts University, 2014.
520 $a Birds behave as if they quickly and accurately perceive an object-filled visual world. Besides pigeons, however, there is a large gap in our knowledge about the mechanisms of object recognition in avian visual systems. The pattern of shading reflected from object surfaces is one important optical feature providing fundamental information about shape and surface orientation. To better understand how surface and object shading is processed by a passerine species, five starlings were tested with differentially illuminated convex and concave curved surfaces in five experiments using a simultaneous visual discrimination procedure. We found that starlings rapidly learned this type of visual discrimination in a manner suggesting that the starlings perceived these illuminated surfaces as three-dimensional surfaces containing curved shapes. The patterns of these results were highly similar to those established from pigeons tested with identical stimuli, indicating that the relative shading is a highly salient feature for shape processing in birds.
590 $a School code: 0234.
650 4 $a Psychology, Cognitive. $3 1017810
650 4 $a Psychology, Behavioral Sciences. $3 1669657
650 4 $a Psychology, Experimental. $3 517106
690 $a 0633
690 $a 0602
690 $a 0623
710 2 $a Tufts University. $b Psychology. $3 1021878
773 0 $t Masters Abstracts International $g 52-05(E).
790 $a 0234
791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1552991