[SACCADES AND PRESACCADIC SPIKE POTENTIAL DURING THE GAME OF TETRIS].

Saccades and microsaccades were studied during a game of Tetris using the method of EOG. In the experiments 19 players of different skill level were involved. EOG was recorded in monopolar mode with respect to the ear electrodes in 6-points around both eyes to account for the gaze displacement in 8-direction.

[Human traveling wave EEG during voluntary movement of the hand].

The traveling wave trajectories connected with the movements of the right hand were revealed. Above sensomotor cortex 28 electrodes were set as a rectangle--4 rows with 7 electrodes in each one. 2D center-out reaching task was used.

[Reproduction of images present in different phases of alpha wave].

It is considered that sensitivity of cortical perceptive mechanisms changes simultaneously with alternation of alpha-rhythm phases and it affects visual recognition accuracy. To verify this statement we detected alternation of alpha-wave phases online for sending stimuli in the middle of increase-phase or in the middle of decrease phase with high precision. 15 healthy volunteers (5 male and 10 female) were observed.

[Eye movement detection with the aid of the oculogram in shifting the gaze].

Eye saccades are accompanied by changes of ocular electric potential. The sign of these changes involves a function of electrode location and eye movement direction while an indicator of the rotation angle is the amplitude. Based on the spatial distribution of the ocular potential one can solve an inverse problem and recover eye movement trajectory to be used for on-line computer control.

[Lateral inhibition in neuronal networks and the shape of alpha-rhythm in the EEG].

In 15 volunteers, the background EEG was registered from the right occipital area with eyes closed. Rhythmic photo-stimulation conjugated with a certain phase of the alpha-waves (10 phases) elicited responses that were compared by means of measurement of the alpha-wave average amplitude in each protocol. The wave shape was compared by asymmetry at the level of ascending and descending fronts.