Visual pathways and psychophysical channels in the primate

The main cell systems of the retina that provide input to the striate cortex are now well described, although certain aspects of their anatomy and physiology remain contentious. Under simple stimulus conditions and in a threshold context psychophysical performance can often be assigned to one or oth...

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Bibliographic Details
Published in:The Journal of physiology 2011-01, Vol.589 (1), p.41-47
Main Author: Lee, Barry B.
Format: Article
Language:English
Subjects:
Anatomy & physiology
Animals
Color Perception
Color Vision
Humans
Pattern Recognition, Visual
Photic Stimulation
Primates
Retinal Ganglion Cells - physiology
Sensory Thresholds
Special Section Reviews: Information Processing In The Primate Visual System
Vision, Ocular
Visual Cortex - physiology
Visual Pathways - physiology
Visual Perception
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Summary:The main cell systems of the retina that provide input to the striate cortex are now well described, although certain aspects of their anatomy and physiology remain contentious. Under simple stimulus conditions and in a threshold context psychophysical performance can often be assigned to one or other of these systems, and an identification of psychophysical channels with afferent pathways is justifiable. However, results from psychophysical studies using more complex stimulus conditions are more difficult to relate to ‘front end’ channels, and it is more difficult to separate the physiological contributions of afferent pathways from those of cortical mechanisms, in particular the separation of dorsal and ventral streams.
ISSN:0022-3751
1469-7793
DOI:10.1113/jphysiol.2010.192658