Directionally Selective Units in the Cat’s Lateral Geniculate Nucleus
Optic nerve fibres of the cat generally have receptive fields of either on-centre or off-centre type. They have been further classified into Type-I fibres which only respond transiently to an increase or a decrease of luminance in their receptive field centre (phasic type), and Type II fibres continue to respond to a spot of light or to a dark spot until the spot is removed (tonic type). The average conduction velocity of Type-I fibres is faster than that of Type-II fibres (Fukada, 1971; Fukada and Saito, 1971; Saito et al., 1970).
KeywordsReceptive Field Lateral Geniculate Nucleus Concentric Type Optic Nerve Fibre Receptive Field Centre
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- FUKADA, Y. and H. SAITO. 19717 Vision Res., 11, 227.Google Scholar
- SAI TO, H., T. SIMAHARA and Y. FUKADA. 1970. Tohoku J. Exp. Med 102, 127.Google Scholar
- SAITO, H., T. SHIMAHARA and Y. FUKADA. 1971. Tohoku J. Exp. Med., 104, 313.Google Scholar
- SIEGEL, S. 1956. Nonparametric Statistics. McGraw-Hill, New York.Google Scholar