Abstract: This study concerns with results of the discriminative reactions in patients of neurasthenia, hyperpiesics and peptic ulcer.The results indicate: the latency period and the fluctuation of discriminative reaction of neurasthenics and hyperpiesics with conspicuous neurasthenic symptoms are significantly larger than those of normal persons. The difference between the discriminative reaction of hyperpiesics without conspicuous neurasthenic symptoms, ulcer gastrics and normal person is negligible, which shows that the disorder is rather less severe. The experimental results of hyperpiesics without any self-conscious symptoms and normal person are similiar. This may be due to the fact that their functional disorder is not reflected in this experiment.

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