THE STUDY OF THE DYNAMICS OF SPATIAL CHARACTERISTICS IN THE ©- FREQUENCY BAND EEG IN SUBJECTS WITH DIFFERENT PERFORMANCE OF COGNITIVE ACTIVITY
In subjects (42 people, men 20-21 years old) with different performance and speed of execution of visual-motor tasks (computerized version of the Gorbov-Shultetest) the dynamics and spatial characteristics of potentials in the Ɵ-frequency band (4-7 Hz) EEG was registered. Subjects of the 1st group who quickly (the average time of click 6318±182,5) and with a small number of errors (1,6±0,43) performed the task, during the work (in relation to the states of quiet wakefulness, out of work) there was a significant change in the structure and the number of highly coherent (coherence coefficient>0,6) interconnections in the Ɵ-range of EEG. In individuals of the 2nd group who performed the task slowly (the average time of click 9827±309,2) and with a large number of errors (11,5±1,95), the changes in the structure of highly coherent bonds were significantly less pronounced, and the change in their number did not reach the level of reliability.