“…Here we show a representative depiction of Homer1a IEG expression by different antipsychotics acutely administered in rodents. The autoradiographic film images of Homer1a mRNA detected by means of in situ hybridization histochemistry in coronal brain sections have been extracted from different studies carried on by our laboratory (Polese et al, 2002 ; Ambesi-Impiombato et al, 2007 ; Tomasetti et al, 2007 , 2011 ; Iasevoli et al, 2009 , 2010a , b , 2011 ; De Bartolomeis et al, 2015a ) and representatively placed side by side in order to outline gene expression topography after treatments with haloperidol (HAL), olanzapine (OLA), sertindole (SERT), amisulpiride (AMS), risperidone (RISP), clozapine (CLO), and different doses of ziprasidone (4 mg/kg, ZIP4; 10 mg/kg, ZIP10), aripriprazole (12 mg/kg, ARI12; 30 mg/kg, ARI30), quetiapine (15 mg/kg, QUE15; 30 mg/kg, QUE30). Homer1a is a postsynaptic effector of plastic synaptic changes mainly mediated by dopamine and glutamate-dependent signaling pathways.…”