Behavioural analysis of all mice that completed the whole 5 min EPM test phase (n = 6 Dlgap4geo/geo and 11 Dlgap4+/+ males) revealed a high preference of Dlgap4geo/geo animals for exploring open versus closed arms (Fig. 4d, e), indicative of a decrease in anxiety. This evidence concerns the gene DLGAP4 and Anxiety.