HOMER1 and psychotic disorder: The Student’s t test was used to compare the transcript values of Homer1a in each ROI between (i) VEH/VEH vs. KET/VEH groups to highlight the differences in Homer1a expression between a psychosis-like model and normal conditions (ii) VEH/VEH vs. VEH/ASE groups, to assess the impact of the antipsychotic on the gene expression under baseline conditions; (iii) KET/VEH vs. KET/ASE groups to evaluate the effects of the antipsychotic in an animal model of psychosis.