Microelectrode recordings of single cells were obtained from the visual cortices of twenty acutely prepared curarized cats. A 500 msec light stimulus was presented for 150 trials at inter-flash intervals of 1.3, 2.0, 2.5, 3.2 and 4.0 seconds. The post stimulus time histograms of cells responding with an accelerated firing to stimulus onset encoded the inter-stimulus interval by an increased firing during the second of three 166 msec periods during the stimulus. The firing at light offset and after did not encode inter-stimulus intervals.
Proceedings of the Iowa Academy of Science
©1968 Iowa Academy of Science, Inc.
Walker, D R. T.; Carlson, N. R.; and Fox, S. S.
"Visual Information Coding by Nerve Impulse Patterns,"
Proceedings of the Iowa Academy of Science, 75(1), 306-311.
Available at: https://scholarworks.uni.edu/pias/vol75/iss1/42