Competitive Mechanisms Subserve Attention in Macaque Areas V2 and V4

This work was supported by the National Institute of Mental Health Intramural Research Program. J.H.R. was supported by a fellowship from the McDonnell-Pew Foundation. L.C. was supported in part by a grant from the Human Frontier Science Program Organization.

Correspondence should be addressed to Dr. Robert Desimone, Chief, Laboratory of Neuropsychology, 49 Convent Drive MSC 4415, Building 49, Room 1B80, Bethesda, MD 20892-4415.