Somatostatin receptor subtype 4 gene-deleted mice (Sstr4−/−) show increased anxiety.
Sstr4−/− mice show increased depression-like behavior in the FST.
The somatostatin receptor subtype 4 agonist J-2156 exerts anxiolytic effect.
J-2156 has anidepressant-like effect in the TST and increases the Fos response.
Somatostatin receptor subtype 4 is highly expressed in the amygdala.