The Psychology of Functional Neuroses

In the mental ratings of psychoneurotic patients, the author's data consist of intelligence tests of nearly 1,200 patients. The mental age ranged from 8.3 years, in cases of mental deficiency, to 13.2 years in psychasthenia. The epileptic and hysteric groups had a mental age of about 12 years. The mental age of the normal soldier is not over 14 years. The author states that "it is clear that the difference in specific symptoms is correlated with a difference in mental level," and that the l...