Association between exploratory activity and social individuality in genetically identical mice living in the same enriched environment

Highlights • The most active animals showed more social interaction, whereas least active mice showed more self-related behavior. • Mice with greater roaming entropy (a proxy measure for global exploration behavior) were more individualistic. • Roaming entropy also correlated negatively with latent factors representing non-social exploratory and play behavior. • We hypothesize that more individualistic behavior would also be associated with more adult hippocampal neurogenesis.