[Dependence of the motor activity of female white rats on estrogen hormones].

For comparative estimation of estrone and estradiol effects on motor activity, normal and ovaryectomized rats were subjected once in 48 hrs for 50 days to subcutaneous administration of 50 units of folliculin and estradiol--dipropionate. The motor activity depended on phases of the sexual cycle. Ovaryectomy abolished the motor activity. The substitutional administration of folliculin increased the motor activity up to 10 000-12 000 m/24 hrs. After estradiol--dipropionate administration the motor activity was up to 4000 m/24 hrs. Some motivational responses as for instance, motor activity seem to depend on specific properties of the outwardly similar but nevertheless differing from each other hormones estrone and estradiol.