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Adaptation and masking of appearance.

Beer, Ralph Dirk.

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Adaptation and masking of appearance.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Adaptation and masking of appearance./
作者:	Beer, Ralph Dirk.
面頁冊數:	105 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5822.
Contained By:	Dissertation Abstracts International64-11B.
標題:	Psychology, Experimental. -
電子資源:	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.
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