This is a preview. Log in through your library . Abstract The visual pathway from retina through the lateral geniculate nucleus to visual cortex in the cat is comprised of several parallel neuronal ...

SINCE their discovery 1–4, the effects of midbrain stimulation on excitability of the visual system have been studied extensively. Work on the squirrel monkey 5,6 has shown that the centrencephalic ...

IN a recent letter 1, Prof. Le Gros Clark directed attention to the evidence that crossed and uncrossed fibres of the optic tract each terminate in three alternating layers of cells in the lateral ...

Keith Schneider, Ph.D., is a professor in the Department of Psychological and Brain Sciences at the University of Delaware, and the director of the cognitive psychology graduate program. He also is ...

PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, perspectives, reviews, colloquium papers, and actions of the Academy. In ...