Articles
Social Learning in Animals: Sex Differences and Neurobiological Analysis

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Abstract

Social learning where an “individual's behavior is influenced by observation of, or interaction with, another animal or its products” has been extensively documented in a broad variety of species, including humans. Social learning occurs within the complex framework of an animal's social interactions that are markedly affected by factors such as dominance hierarchies, family bonds, age, and sex of the interacting individuals. Moreover, it is clear that social learning is influenced not only by important sexually dimorphic social constraints but also that it involves attention, motivational, and perceptual mechanisms, all of which exhibit substantial male–female differences. Although sex differences have been demonstrated in a wide range of cognitive and behavioral processes, investigations of male–female differences in social learning and its neurobiological substrates have been largely neglected. As such, sex differences in social learning and its neurobiological substrates merit increased attention. This review briefly considers various aspects of the study of social learning in mammals, and indicates where male–female differences have either been described, neglected and, or could have a potential impact. It also describes the results of neurobiological investigations of social learning and considers the relevance of these findings to other sexually dimorphic cognitive processes.

Section snippets

The role of gender in social learning

Social learning in males and females has been investigated in several different experimental paradigms. The research with mammals considered here has concentrated on three major paradigms; social learning of food preferences, observational learning of a number of tasks by rodents, and social learning by primates. The social recognition paradigm, where an animal is tested for the memory of a conspecific after separations of various duration, has also received analysis and has been termed by some

Neuroanatomical Studies

Social learning of food preferences has been utilized for the investigation of the neurobiological mechanisms associated with cognition. The experimental procedure used in this social learning paradigm typically follows the three steps shown in Fig. 1. First the demonstrator is presented with a novel diet. Second the demonstrator is allowed to interact with an observer that is naive to the diet fed to the demonstrator. Third after the interaction with the demonstrator, the isolated observer is

Conclusions

Although sex differences have been demonstrated in a wide range of cognitive and behavioral processes, investigations of male–female differences in social learning remain largely neglected. Social learning varies in a biologically meaningful way as a function of social constraints (social, characteristics, social setting) and the type of information that may be transferred. Social transmission and acquisition of information involves sexually dimorphic motivation, perception, attention, and

Acknowledgements

We thank Drs. William Roberts, David Sherry, and two anonymous reviewers for their constructive suggestions.

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