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The many complex problems of the condition called dementia praecox have at last been solved! All obscurity has been dispelled at a single stroke, for, in the words of the author, "the characteristics of praecox patients are readily understood when their mental inefficiency is taken into consideration" (p. 101). Dr. Babcock has done a painstaking and stimulating piece of work, and there can be no quarreling with her extremely interesting data. These, however, seem scarcely to warrant the sweeping conclusions, namely, that the phenomena of dementia praecox are similar to those found in diseases admittedly due to organic deterioration, and that such deterioration, and that alone, explains all the phenomena of dementia praecox.
The study consists of a comparison of the mental efficiency of 216 nonpsychotic subjects with that of 206 patients whose conditions were diagnosed as dementia praecox in the Manhattan State Hospital. The mental efficiency was measured by
Dementia Praecox—A Psychological Study.. Arch NeurPsych. 1935;33(2):450-451. doi:10.1001/archneurpsyc.1935.02250140206020