TY - JOUR
T1 - Temporal properties of inputs to direction-selective neurons in monkey V1
AU - Saul, Alan B.
AU - Carras, Peter L.
AU - Humphrey, Allen L.
PY - 2005/7
Y1 - 2005/7
N2 - Motion in the visual scene is processed by direction-selective neurons in primary visual cortex. These cells receive inputs that differ in space and time. What are these inputs? A previous single-unit recording study in anesthetized monkey V1 proposed that the two major streams arising in the primate retina, the M and P pathways, differed in space and time as required to create direction selectivity. We confirmed that cortical cells driven by P inputs tend to have sustained responses. The M pathway, however, as assessed by recordings in layer 4Ca and from cells with high contrast sensitivity, is not purely transient. The diversity of timing in the M stream suggests that combinations of M inputs, as well as of M and P inputs, create direction selectivity.
AB - Motion in the visual scene is processed by direction-selective neurons in primary visual cortex. These cells receive inputs that differ in space and time. What are these inputs? A previous single-unit recording study in anesthetized monkey V1 proposed that the two major streams arising in the primate retina, the M and P pathways, differed in space and time as required to create direction selectivity. We confirmed that cortical cells driven by P inputs tend to have sustained responses. The M pathway, however, as assessed by recordings in layer 4Ca and from cells with high contrast sensitivity, is not purely transient. The diversity of timing in the M stream suggests that combinations of M inputs, as well as of M and P inputs, create direction selectivity.
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U2 - 10.1152/jn.00868.2004
DO - 10.1152/jn.00868.2004
M3 - Article
C2 - 15744011
AN - SCOPUS:21544451976
SN - 0022-3077
VL - 94
SP - 282
EP - 294
JO - Journal of Neurophysiology
JF - Journal of Neurophysiology
IS - 1
ER -