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The aim of the study was to obtain some experimental evidence of the 'scanning hypothesis' that links electroencephalogram (EEG) alpha-activity with rhythmically spreading waves in the visual cortex. The hypothesis was tested in experiments with 29 healthy adults. Under flicker stimulation through closed lids with the frequency of the individual(More)
The aim of this paper is to study the recognition of facial expression of emotions in depressed patients with major depressive disorder (MD) and schizotypal personality disorder (STP). The pictures of sad, emotionally neutral, and happy faces followed by a masking stimulus were displayed for 80 msec on a computer screen randomly in the left or right(More)
Twenty-two right-handed subjects were asked either to identify sad, neutral, or laughing faces presented on a computer monitor or to view passively the same pictures without classification. Visual evoked potentials were recorded from F3/4, C3/4, P3/4, O1/2, and T5/6 derivations. In comparison with the passive viewing, the emotion recognition was(More)
The accuracy and time of motor response in tests for visual recognition of simple (sets of horizontal and vertical lines, angles, and crosses) and complex (contour images of animate and inanimate objects) images forward-masked with stimuli of varying complexity were estimated in psychophysiological experiments. It was found that forward masking impaired(More)
The high-resolution EEG was taken from 35 healthy subjects (16 males, 19 females) in the task of identification of cardinal (horizontal, vertical) and oblique (45°, 135°) orientations. The integrated approach was developed and used for the ERPs analysis. It includes the modeling of the distributed intracranial dipole sources of the ERPs' components by the(More)
In four adult healthy subjects in 18 experiments, we studied Brain-Computer-Interface recognition of different intended words by P300 wave in the VEP. The set of optimal characteristics of visual stimulation which rise reliability of recognition up to 100 %, as well as effective registration locus (Pz) were determined. It was found that the best processing(More)
Emotional reactivity of patients with endogenous depression and healthy test subjects towards classic and rock music was compared. According to the questionnaire data and EEG recording, it was established that in depressed patients, analysis and estimation of the emotionally significant information differ from those in healthy persons. In contrast to(More)
A reaction time and accuracy of visual recognition of emotions of joy, anger and fear in their relation to personality traits was studied in 68 healthy subjects. According to scores of Kettell Questionnaire all the participants were divided into two groups: emotionally unstable and emotionally stable, which differed in their emotional and communication(More)