Tunin V. Unfavorable effects of work on computer: electro-physiological correlates and ways of non-medical treatment

The thesis reviews the study of psycho-physiological effects of intense monotonous work on personal computer (PC). There were studied 108 volunteers (18-35 years old) who underwent registration of current EEG and event-related potentials, and psychological testing. Intense work on PC of even one-hour duration appeared to result in unfavorable changes in psycho-physiological status accompanied by decreased ratio of alpha- and theta-rhythms and increased ratio of beta- and theta-rhythms of EEG in central registration points, persistent within the control group for an hour after. To treat the unfavorable effects we used visual stimulation based on Madyar’s colour-tables in the first of the experimental groups, and sessions of biofeedback by EEG – in the second one. Both resulted in EEG specter normalization and amplitude increase of contingent negative variation and P300 potential. The methods applied could be recommended to treat the unfavorable effects of intense work on PC.