Behavioural Test Battery. Key behavioural parameters from each test in the behaviour screen for Sprague Dawley and Long Evans rats housed in standard or enriched conditions.

Data are presented as mean ± SEM and statistical results for strain comparison. Main effect of Strain and Housing was assessed by ANOVA and independent-samples t-tests were then performed if a significant Strain*Housing interaction was detected; *p<0.05, **p<0.01.