[Separation of manic-depressive psychoses and neuroses by a cognitive index]

A free word association quantitative test gave significantly different results in two groups of manic depressive patients (n = 18, n = 33) compared to two groups of neurotics (n = 25, n = 30) and two groups of controls (n = 29, n = 57). The biggest difference was between manic depressed and neurotics. Such measurements are considered to provide an approach to the reality system that differs in manic depressed and neurotics or controls.