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MERIDIONAL VARIATIONS AND OTHER PROPERTIES SUGGESTING THAT ACUITY AND ORIENTATION DISCRIMINATION RELY ON DIFFERENT NEURONAL MECHANISMS *
Author(s) -
Orban Guy A.,
Vandenbussche Erik,
Vogels Rufin
Publication year - 1984
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1984.tb00338.x
Subject(s) - orientation (vector space) , zonal and meridional , grating , oblique case , neuroscience , visual acuity , optics , psychology , physics , geometry , mathematics , atmospheric sciences , linguistics , philosophy
It has been widely reported that both grating acuity and orientation discrimination show meridional variations: performance is better for targets oriented horizontally or vertically than for those with oblique orientations. In spite of such similarities, we now present both behavioral and psychophysical evidence from tats and humans to show that grating acuity and orientation discrimination depend upon different neuronal mechanisms.