The Biology and Neurology of Group Processes

Abstract

Purpose – The purpose of this chapter is to bring data to suggest that group processes have a biological base, lodged in human neurology as it evolved over the last 7 million years.

Design/methodology/approach – The method for discovering the neurological basis of group processes is labelled evolutionary sociology, and this method revolves around: (1) cladistic analysis of traits of distant ancestors to humans and the great apes, with whom humans share a very high proportion of genes, (2) comparative neurology between the great apes and humans that can inform us about how the brains of humans were rewired from the structures shared by the last common ancestor to humans and apes, and (3) ecological analysis of the habitats and niches that generated selection pressures on the neurology of apes and hominins.

Findings – A key finding is that most of the interpersonal processes that drive group processes are neurologically based and evolved before the brain among hominins was sufficiently large to generate systems of symbols organized in cultural texts remotely near the human measure. There is, then, good reason to study the neurological basis of behavior because neurology explains more about the dynamics of interpersonal behavior than does culture, which was a very late arrival to the hominin line.

Research implications – One implication of these findings is that social scientific analysis of interpersonal processes and group dynamics can no longer assume that groups are solely a constructed process, mediated by culture and social structure. There were powerful selection pressures during the course of hominin evolution to increase hominin sociality and especially group formation, which required considerable rewiring of the basic ape brain. Since groups are not “natural” to apes in general and even to an evolved ape-like humans, it is important to discover how humans ever became group-organizing animals. The answer resides in the dramatic enhancing of emotions in hominins and humans, which shifts attention away from the neocortex to the older subcortical areas of the brain. Once this shift is made, theorizing and research, as well as public views on human sociality, need to be recast as, first, an evolved biological trait and, only second, as a most tenuous and fragile of a big-brained animal using language and culture to construct its social world.

Originality/value – The value of this kind of analysis is to liberate sociology and the social sciences in general from simplistic views that, because humans have language and can use language to construct culture and social structures, the underlying biology and neurology of human action is not relevant to understanding the social world. Indeed, just the opposite is the case: to the extent that social scientists insist upon a social constructionists research agenda, they will fail to conceptualize and perform research on more fundamental forces in the social world, including group dynamics.

Citation

Turner, J.H. and Maryanski, A. (2012), "The Biology and Neurology of Group Processes", Kalkhoff, W., Thye, S.R. and Lawler, E.J. (Ed.) Biosociology and Neurosociology (Advances in Group Processes, Vol. 29), Emerald Group Publishing Limited, Leeds, pp. 1-37. https://doi.org/10.1108/S0882-6145(2012)0000029004