Fig. 1

A Cumulative time spent in interaction with a social partner animal and an inanimate object in the Three-Chamber Social Interaction Test. B Cumulative time spent in a chamber with a social partner animal and an inanimate object in the Three-Chamber Social Interaction Test. Asterisks indicate a within-subject comparison. No differences were recorded in group comparison. WT Wild-type animal; Shank3(−/−) Shank3-deficient animal; *p < 0.05; *** p < 0.001