Desuden afslørede en Single Photon Emission Computed Tomography (SPECT) undersøgelse af skizofrene patienter, at olanzapinresponderende patienter havde en lavere striatal D2- binding end visse andre antipsykotika - og risperidonresponderende patienter, hvorimod det var sammenligneligt med clozapinresponderende patienter.
In addition, a Single Photon Emission Computed Tomography (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.