Abstract
Rats with neocortical and hippocampal lesions, as well as normal animals, were trained in a visual discrimination task. The periods of stimulus presentation indicating the “correct lever” were separated by 10-sec intertrial intervals. Both lesion groups were impaired in the acquisition of the problem, but only the animals with hippocampal damage evidenced significantly higher response rates during the intertrial intervals.
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This research was supported in part by Grant NIMH 16384-03 to R. L. Isaacson. Mr. Woodruff receives support from USPHS Training Grant MH-10320 to the Center for Neurobio logical Sciences, University of Florida.
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Woodruff, M.L., Schneiderman, B. & Isaacson, R.L. Impaired acquisition of a simultaneous brightness discrimination by cortically and hippocampally lesioned rats. Psychon Sci 27, 269–271 (1972). https://doi.org/10.3758/BF03328958
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DOI: https://doi.org/10.3758/BF03328958