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Corticogeniculate feedback and visual processing in the primate
Author(s) -
Briggs Farran,
Usrey W. Martin
Publication year - 2011
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.2010.193599
Subject(s) - lateral geniculate nucleus , feed forward , neuroscience , visual cortex , primate , computer science , visual processing , visual system , artificial intelligence , biology , control engineering , engineering , perception
Corticogeniculate neurones make more synapses in the lateral geniculate nucleus (LGN) than retinal ganglion cells, yet we know relatively little about the functions of corticogeniculate feedback for visual processing. In primates, feedforward projections from the retina to the LGN and from the LGN to primary visual cortex are organized into anatomically and physiologically distinct parallel pathways. Recent work demonstrates a close relationship between these parallel streams of feedforward projections and the corticogeniculate feedback pathway. Here, we review the evidence for stream‐specific feedback in the primate and consider the implications of parallel streams of feedback for vision.