Aubert phenomenon


Also found in: Medical.

Aubert phenomenon

[ō‚ber fə′nām·ə·nən]
(psychology)
The perception of a vertical line as oblique by an observer whose head is inclined to one side in a darkened room.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.