Analgesia to pain stimuli in schizophrenics and its reversal by naltrexone.


Psychophysical pain ratings and somatosensory evoked potentials (EPs) were studied in 17 off-medication patients with schizophrenia and 17 age- and sex-matched normal controls. Five of the 17 schizophrenic patients also participated in a clinical trial of naltrexone. In comparison with normal controls, schizophrenic patients were significantly more… (More)


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