Analysis of sexual differences in emotional reactions in rats

Abstract

The effect of sex differences on the emotional reactivity in the rat (Rattus norvegicus) has been analyzed by means of the open field test and the acquisition of a conditioned emotional response (C.E.R.), according to Estes and Skinner technique.The combined use of C.E.R.and defecation rate techniques shows that males present a higher emotional reactivity than females.Furthermore estrous cycle affected female ambulation rates in open field.