Fig 3. Saliva cortisol concentrations throughout the isolation period and the cognition test.

(A) Saliva cortisol [ng/ml] for single groups (both sexes combined) based on the significant interaction of ‘group’ and ‘stage’. (B) Saliva cortisol [ng/ml] for the sexes (all four groups combined) based on the significant interaction of ‘sex’ and ‘stage’. Values are means ± SEM. * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001.