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This report on experimental work on psychomotor behavior in mentally ill persons illustrates the basic adaptational nature of body movement and it indicates how a close study of its characteristics may help to formulate a better idea of the psychologic controls which govern it. It was observed that the greater the deviation from normal in psychological adjustment and behavior the correspondingly greater retardization is observed in tests of psychomotor function.
The new book throws light on psychomotor function and indicates a possible aid to clinical diagnosis through a quantitative registering of a somatic correlate of mental disease.