How we see

Author

Andersen, Richard A.

Author_Institution

Div. of Biol., California Inst. of Technol., Pasadena, CA, USA

Volume

1

fYear

1998

fDate

21-28 Mar 1998

Firstpage

3

Abstract

The visual world is imaged on the retinas of our eyes. However, “seeing” is not a result of neural functions within the eyes but rather a result of what the brain does with those images. Our visual perceptions are produced by parts of the cerebral cortex dedicated to vision. Although our visual awareness appears unitary, different parts of the cortex analyze color, shape, motion, and depth information. There are also special mechanisms for visual attention, spatial awareness, and the control of actions under visual guidance. Often lesions from stroke or other neurological diseases will impair one of these subsystems, leading to unusual deficits such as the inability to recognize faces, the loss of awareness of half of visual space, or the inability to see motion or color

Keywords

brain; eye; neurophysiology; visual perception; brain; cerebral cortex; color; depth information; eyes; lesions; motion; neurological diseases; retinas; shape; spatial awareness; visual attention; visual awareness; visual perceptions; visual space; Cerebral cortex; Eyes; Image color analysis; Image motion analysis; Information analysis; Lesions; Motion analysis; Retina; Shape; Visual perception;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 1998 IEEE

Conference_Location

Snowmass at Aspen, CO

ISSN

1095-323X

Print_ISBN

0-7803-4311-5

Type

conf

DOI

10.1109/AERO.1998.686668

Filename

686668