Neurophysiological markers of high anxiety level in man during the process of preparing for a visual recognition

By means of EEG analysis the functional state of subjects with high and low levels of anxiety was studied in different periods preceding a cognitive task - a visual expression recognition. Several conditions were investigated: background/eyes closed; background/eyes opened; listening the instruction...

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Bibliographic Details
Published in:Journal of integrative neuroscience 2018, Vol.17 (3-4), p.377-390
Main Authors: Cheremushkin, Evgeniy A, Petrenko, Nadezda E, Yakovenko, Irina A, Gordeev, Sergei A, Alipov, Nikolay N, Sergeeva, Olga V
Format: Article
Language:English
Subjects:
Anticipation, Psychological - physiology
Anxiety
Anxiety - physiopathology
Brain - physiology
Cognitive ability
EEG
Electroencephalography
Eye (anatomy)
Female
Humans
Listening
Male
Markers
Pattern Recognition, Visual - physiology
Personality - physiology
Pictures
Recognition
Visual tasks
Young Adult
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Summary:By means of EEG analysis the functional state of subjects with high and low levels of anxiety was studied in different periods preceding a cognitive task - a visual expression recognition. Several conditions were investigated: background/eyes closed; background/eyes opened; listening the instruction for the cognitive task; operative rest (time lapse between listening the instruction and the beginning of the task), as well as short intervals immediately preceding the exposition of target stimuli (stage of preparation) - pairs of faces pictures with identical or different emotional expressions. At all these pre-task stages high-anxiety subjects exhibited much lower amplitude values in alpha and theta bands (as compared with low-anxiety subjects). The most prominent differences were revealed in the phases of instruction listening and operative rest. These data could provide more precise electrophysiological markers of anxiety level in conditions preceeding cognitive task performance.
ISSN:0219-6352
1757-448X
DOI:10.3233/JIN-170074