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1 | In article the basic results and prospects of the further researches of specific features and mechanisms of perception of time in Tomsk the state university are discussed. It is shown, in particular, that the perception of time is system process in which it is possible to allocate five consecutive stages clearly shown in dynamics of ERP and cortical of interactions. Character of these interactions essentially depends on an initial condition and specific features of the person. Between characteristics of perception of time and levels cortical interactions there are statistically significant connections which character depends on a stage carried out perceptional tasks. | 1317 | ||||
2 | Event-related brain potentials (ERPs) were explored in task of production of time intervals. Subjects were presented with digits (1, 3, 4, 5) of different colours on the monitor. On the first series (A) all digits corresponded to time intervals, which were to be produced by double pressing a key «space». On the second series (B) red digits corresponded to time intervals, which subject should produce by double pressing a key «space». Blue digits corresponded to number of key presses, which subject should make. Digits of other colours must be ignored. We found early differences of ERPs to stimuli of different colours only when colour of stimulus had signal significance. The found differences between the ERPs on production of time intervals and those on performance of the competing task in the piece of 350–500 ms from the visual stimulus onset, are related to the analysis of signal significance of stimulus and the choice of a motor program. The most probable correlate of accessing long-term memory for extraction of the subjective standard of time in the presence of the competing task of similar complexity is the negative component appearing at 250–150 ms before production of time interval. It is established, that the source of this component is in the parietal part of cingulated gyros of the right hemisphere. | 1349 | ||||
3 | In the article the research of EEG-correlaters is made on the basic of study connected with potentionals of brain. They show the process of taking out the subjective time model from the long time memory in appreciation of short visual signals lengthiness | 1160 | ||||
4 | By 27 apparently healthy youth and 29 girl teen-age was investigated the interrelation of intellectual measure and accuracy of time perception with high frequency of electrical brain activity – gamma-rhythm. Connection of intellectual measure and accuracy time perception with level of cortical interaction on frequency gamma-rhythm activity and fazes of interaction between gamma-rhythm and low frequency composes of EEG was discovered. Keywords: intellect, gamma activity, low frequency rhythm EEG, cortical interaction, fazes connection, time perception | 1438 |