Desuden afslørede en SPECT undersøgelse af skizofrene patienter, at olanzapin- responderende patienter havde en lavere striatal D2- binding end visse andre antipsykotika- og risperidon- responderende patienter, hvorimod det var sammenligneligt med clozapin- responderende patienter.
In addition, a SPECT imaging study in schizophrenic patients revealed that olanzapine-responsive patients had lower striatal D2 occupancy than some other antipsychotic- and risperidone-responsive patients, while being comparable to clozapine-responsive patients.