Response covariance in cat visual cortex

• Published in: Experimental brain research Vol. 60; no. 3; pp. 559 - 563
• Main Authors: VAN KAN, P. L. E, SCOBEY, R. P, GABOR, A. J
• Format: Journal Article
• Language: English
• Published: Berlin Springer 01-01-1985
• Subjects: Analysis of Variance; Animals; Biological and medical sciences; Cats; Electric Stimulation; Evoked Potentials, Visual; Eye and associated structures. Visual pathways and centers. Vision; Fundamental and applied biological sciences. Psychology; Neural Conduction; Neurons - physiology; Reaction Time; Vertebrates: nervous system and sense organs; Visual Cortex - cytology; Visual Cortex - physiology; Fissipedia; Carnivora; Vertebrata; Visual cortex; Mammalia; Covariance; Cat; Central nervous system; Electrophysiology; Brain (Vertebrata)
• ISSN: 0014-4819; 1432-1106
• DOI: 10.1007/BF00236942

The activity of pairs of neurons in the visual cortex (area 17) of anaesthetized, paralysed cats was recorded using two independently manipulated micropipettes. The number of spikes in the evoked responses of pairs of single neurons were analyzed for response covariance. Responses of the majority of cell pairs (83%) did not covary. Covariance was restricted to closeby neurons with distances of less than 150 microns and with identical orientation and ocular dominance preference.