Abstract
Abstract Research from our own and other laboratories showing different cognitive responses to stress in male and female rodents using recognition memory tasks is reviewed. Overall, male rodents are impaired on object recognition and placement tests following stress while females are either not affected or show improved performance on such tasks. The possible influence of stress on psychological and performance parameters, rather than mnemonic factors, in completing the tasks is discussed. At the neural level, a number of sex-dependent, stress-induced changes are emerging but their links to memory are not well investigated. The need for further research on and a better understanding of how these sex differences emerge in relation to stress-induced mental diseases is also discussed. Overall, recognition memory tasks are a valuable addition to the repertoire of animal behaviour testing within a neuroendocrine framework, and their use has greatly expanded the evidence showing that stress causes sexually differentiated effects on cognitive function in rats.
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