Most play research historically has focused on children; adult play and playfulness are less well understood.
Link
https://www.journalofplayinadulthood.org.uk/article/1258/galley/959/view/?utm_source=chatgpt.com
Yet humans and many social mammals continue to exhibit play or play‐like behavior in adulthood, and such behavior may serve adaptive functions (social cohesion, stress regulation, creativity, etc.)
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https://www.sciencedirect.com/science/article/pii/S0149763423000933?utm_source=chatgpt.com
In the adult context, play often takes different forms—hobbies, games, role‐play, improvisation, creative arts, workplace “gamification,” spontaneous social games, or playful thinking in everyday tasks.
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https://www.bps.org.uk/psychologist/golden-age-play-adults?utm_source=chatgpt.com
Playfulness refers to a dispositional or attitudinal tendency to approach life with spontaneity, humor, and flexibility. Some adults may not “play” in classical ways (games, sports) yet still manifest playfulness in attitude and perception.
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https://www.journalofplayinadulthood.org.uk/article/id/1258/?utm_source=chatgpt.com
Key brain regions implicated include prefrontal cortex (executive and regulatory control), dorsal/ventral striatum (reward, motivation), amygdala (emotion), and habenula (inhibitory/limiting circuits) in the modulation of playful behavior.
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https://pmc.ncbi.nlm.nih.gov/articles/PMC5646690/?utm_source=chatgpt.com