Aubert phenomenon


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Au·bert phe·nom·e·non

(ow'bert),
a phenomenon in which a bright perpendicular line appears to incline to one side when the observer turns the head to the opposite side in a dark room.

Au·bert phe·nom·e·non

(ow'bert fĕ-nom'ĕ-non)
A sign in which a bright perpendicular line appears to incline to one side when the observer turns the head to the opposite side in a dark room.

Aubert,

Hermann, German physiologist, 1826-1892.
Aubert phenomenon - a bright perpendicular line appearing to incline to one side when the observer turns the head to the opposite side in a dark room.