Electrooculogram detection of eye movements on gaze displacement.

Changes in potential are known to occur in the orbital area during saccades. The sign of these changes depends on the position of the electrode and the direction of eye rotation, while their amplitude depends on the rotation angle. The patterns of potentials can be used to resolve the reverse task, i.

[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 neural networks and the shape of EEG alpha rhythm waves.

Baseline EEG traces were recorded from the right occipital area with the eyes closed in 15 subjects. Rhythmic stimulation with bright, diffuse flashes of light was applied through the closed eyelids at specific points in the alpha-wave phase (trigger photic stimulation). Ten versions of stimulation were used, with application at different phases for 1 min at each phase.

[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.

Reflection of the pattern of cortical activation in the phase structure of the human EEG.

A total of 22 healthy subjects in the EEG laboratory and 62 patients in the clinical functional diagnostic unit were studied. Spontaneous EEG recordings were made using the 10-20 scheme relative to combined ear electrodes in the state of rest with the eyes closed and open and during various functional loads. Traces were analyzed by computer animation of the EEG phase structure.