[Cortical influences on thyroid and sex gland function in neurotic dogs]

Disturbances of higher nervous activity charactetized by the development of an experimental neurosis were elicited in three male dogs by means of functional influences. This was accompanied by an increase, decrease or no change in the level of total thyroxine in the blood with greater fluctuations of its content on different days. An euthyreoid state persisted in the dogs throughout all periods of the neurosis, which is testified by the absence of changes of the free thyroxine coefficient. In the first three to four weeks of the experimental neurosis the testosterone content in the blood plasma was enhanced, its level not correlating with the variations of thyroxine content in the blood.