Perceptual accuracy in schizophrenia, depression, and neurosis, and effects of amytal.

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Abstract
"Three perceptual tests were given to four groups of hospitalized patients: chronic schizophrenics, early schizophrenics, depressives, and neurotics. The tests, Hands, Street Gestalt, and Rorschach, were administered first without then with intravenous sodium amytal and amphetamine sulphate. Without drugs, on the Hands test, the groups did not differ in accuracy. On Gestalt Completion, the CS and Dp groups gave fewer correct responses than the ES and Nt groups....Beck''s finding of lowered F + % in schizophrenia was confirmed. With drugs, on the Hands test, all groups were less accurate. On Gestalt Completion, all groups were more accurate and gave fewer rejections and unique responses. There was no change in Rorschach F + %.".

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