Study on changes of some biological indexes after mental activity of the 2nd year medical students

The study evaluated the change of vein frequency, blood pressure, latency of alpha waves after Ravent test on 100 students (50 men and 50 women). The result showed that after Raven test, heart rate signigicantly increased, while arterial blood pressure remained the same as before test in both male and female. There was no significant in latency of alpha waves and attentive index in all subjects