PTPRD and Anxiety: In addition, Ptprd‐meA−/− mice showed normal anxiety‐like behavior in the open‐field test and anxiolytic‐like behavior in the elevated plus‐maze test, similar to Ptprd−/− mice, but normal anxiety‐like behavior in the light–dark test, although there was a tendency for an increase (Fig EV4C–G), similar to Ptprd−/− mice.