Eye position effects in macaque area V4

Frank Bremmer
2000 NeuroReport  
Acknowledgements: The author thanks Drs A. Thiele and P. Henning for helping to prepare the second monkey for the experiments, Dr C. Distler for her help with histology, and W. Zinke for data analysis. This work was supported by grants from the Deutsche Forschungsgemeinschaft (SFB 509/B7) and the Human Frontier Science Program (RG71/96B). Recent studies revealed an in¯uence of eye position on neuronal discharges in many dorsal stream areas of the macaque visual cortical system. This eye
more » ... m. This eye position information is thought to serve an implicit non-retinocentric representation of visual spatial information. The question arises of whether the two visual cortical pathways encode information in a common coordinate system, i.e. whether eye position effects exist also in ventral stream areas. We recorded 112 neurons from area V4 of two awake monkeys. Of these, 55 (49%) showed eye position effects. Like in dorsal stream areas, this modulatory in¯uence was balanced out at the population level. Our data support the view of eye position effects as a general phenomenon in the macaque visual cortical system.
doi:10.1097/00001756-200004270-00027 pmid:10817607 fatcat:6e3hvuswh5a47kv3mdavx465c4