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Play Deprivation: The Systematic Suppression of a Primary Biological System

A. C. Applebee, L. N. Combe · 2026

Abstract

Play is a primary-process emotional system — one of seven subcortical circuits identified by Panksepp (1998) that generate core affective states in all mammals. It is not recreation. It is not optional. It is a neurobiological programme that drives the development of the prefrontal cortex, calibrates social behaviour, mediates the endogenous opioid system, and provides the developmental scaffolding for impulse control, empathy, creative cognition, and emotional regulation. This thesis synthesises evidence from affective neuroscience (Panksepp, 1998, 2007), developmental neurobiology (Pellis & Pellis, 2007), clinical psychiatry (Brown, 2009), evolutionary ethology (Bekoff, 2001; Burghardt, 2005), comparative cognition (Mather & Anderson, 1999), developmental psychology (Gray, 2011, 2013), risk research (Brussoni et al., 2015; Sandseter, 2007, 2011), adventure playground history (Allen of Hurtwood, 1968; Sorensen, 1931; Kozlovsky, 2008), and cross-cultural anthropology to establish that play deprivation constitutes a form of developmental damage with measurable neurological, psychological, and social consequences.

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