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>Methods of masking threatening images and detecting electrophysiological indicators of their unconscious perception
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Methods of masking threatening images and detecting electrophysiological indicators of their unconscious perception
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机译：Methods of masking threatening images and detecting electrophysiological indicators of their unconscious perception
This study is devoted to the search for electrophysiological indicators of the human perception of a threat in a complex background target environment. It is shown that the human visual system can distinguish between threatening and nonthreatening stimuli at an unconscious level, and the primary stages of image processing are similar to those during conscious perception. An increase in the amplitude of the positive wave of the evoked potential with a latency period of 320 ms and a decrease in the amplitude of the electroencephalogram rhythms at a frequency of approximately 12 Hz in the range of 350-750 ms after presentation of a threatening stimulus can serve as electrophysiological indicators of unconscious perception. The results obtained are considered from the perspective of the matched filtration model. (C) 2021 Optical Society of America
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