東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Adaptation and masking of appearance.

Beer, Ralph Dirk.

Linked to FindBook

Google Book

Amazon

博客來

Adaptation and masking of appearance.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Adaptation and masking of appearance./
Author:	Beer, Ralph Dirk.
Description:	105 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5822.
Contained By:	Dissertation Abstracts International64-11B.
Subject:	Psychology, Experimental. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3112190
ISBN:	9780496597208

Adaptation and masking of appearance.
Beer, Ralph Dirk.

Adaptation and masking of appearance. - 105 p.

Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5822.

Thesis (Ph.D.)--University of California, San Diego, 2003.

To a large extent, the representation of color information in the brain, and the mechanisms which determine appearance of stimuli are still not well understood. There is a nice convergence of physiological and psychophysical data about the first stages of color encoding. The organization of later cortical stages, presumably more closely linked to perceived color, is not clear. Experiments reported here investigate how cortical color mechanisms encode the appearance of chromatic and luminance patterns. Specifically, we look for opponent encoding of color in the cortex, and try to determine whether color is encoded by a few or many mechanisms. In the process, we explore models for how color appearance is changed by adapting or masking patterns. We find that color patterns seem to be encoded by a few broadly tuned mechanisms that are at least partly selective for contrast polarity. The effect of adaptation, and to some degree masking, can be accounted for by models of simple divisive inhibition. Finally, there is a minimum amount of adaptation and masking due to the optical light scatter in the eye, and we devised a method for measuring this scattered light.

ISBN: 9780496597208Subjects--Topical Terms:

517106
Psychology, Experimental.

Adaptation and masking of appearance.
LDR:02065nmm 2200289 4500 001 1819679
005 20061101121629.5
008 130610s2003 eng d
020 $a 9780496597208
035 $a (UnM)AAI3112190
035 $a AAI3112190
040 $a UnM $c UnM
100 1 $a Beer, Ralph Dirk. $3 1908950
245 1 0 $a Adaptation and masking of appearance.
300 $a 105 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5822.
500 $a Chair: Donald I. A. MacLeod.
502 $a Thesis (Ph.D.)--University of California, San Diego, 2003.
520 $a To a large extent, the representation of color information in the brain, and the mechanisms which determine appearance of stimuli are still not well understood. There is a nice convergence of physiological and psychophysical data about the first stages of color encoding. The organization of later cortical stages, presumably more closely linked to perceived color, is not clear. Experiments reported here investigate how cortical color mechanisms encode the appearance of chromatic and luminance patterns. Specifically, we look for opponent encoding of color in the cortex, and try to determine whether color is encoded by a few or many mechanisms. In the process, we explore models for how color appearance is changed by adapting or masking patterns. We find that color patterns seem to be encoded by a few broadly tuned mechanisms that are at least partly selective for contrast polarity. The effect of adaptation, and to some degree masking, can be accounted for by models of simple divisive inhibition. Finally, there is a minimum amount of adaptation and masking due to the optical light scatter in the eye, and we devised a method for measuring this scattered light.
590 $a School code: 0033.
650 4 $a Psychology, Experimental. $3 517106
650 4 $a Psychology, Psychometrics. $3 1017742
650 4 $a Psychology, Cognitive. $3 1017810
690 $a 0623
690 $a 0632
690 $a 0633
710 2 0 $a University of California, San Diego. $3 1018093
773 0 $t Dissertation Abstracts International $g 64-11B.
790 1 0 $a MacLeod, Donald I. A., $e advisor
790 $a 0033
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3112190