... NY, USA 2. Department of Psychiatry and Nuclear Medicine, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran AAbbssttrraacctt Many neuroimaging studies of schizophrenia ... consistent enough to build up a coherent theory of the origin of the brain abnormality in schizophrenia. This paper describes a state -of- the-art approach of SPECT to correlate neuropsychological evaluation. ... picture of the pattern of brain perfusion immediately after administration. Therefore, the effect of sedation on measured rCBF should be negligible. Thirty minutes after the administration of 99mTc-ECD,...