Journal article

SPATIOTEMPORAL RESPONSE PROPERTIES OF DIRECTION-SELECTIVE NEURONS IN THE NUCLEUS OF THE OPTIC TRACT AND DORSAL TERMINAL NUCLEUS OF THE WALLABY, MACROPUS-EUGENII

MR IBBOTSON, RF MARK, TL MADDESS

JOURNAL OF NEUROPHYSIOLOGY | AMER PHYSIOLOGICAL SOC | Published : 1994

Abstract

1. The spatial and temporal response characteristics of direction-selective neurons in the nucleus of the optic tract and dorsal terminal nucleus of the accessory optic system (NOT-DTN) of the wallaby were established using moving sinusoidal gratings. This is the first comprehensive investigation of the spatiotemporal response characteristics of NOT-DTN neurons in any species. 2. The analysis revealed two main classes of cells. The first class, referred to as slow neurons, are maximally sensitive to motion at low temporal frequencies ( 10 Hz) and moderate to low spatial frequencies (0.1-0.5 cpd). The fast neurons also have a domain of high sensitivity at low temporal frequencies and high spa..

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