Abstract
In this work an spatial memory task was made, as well as a water maze T and a registry of some behaviour models (exploratory conduct, grooming, passivity, oral activity, enrichment) in white rat. We after lesioned by electrolytic method the lateral mammillary nucleus (1 mA and 1.3 mA) and we quantificated the volume of the lesion. We studied the relationship between the conductual-physiological results and the Korsakoff's syndrome.