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Residual and compensatory changes of resting-state EEG in successful recovery after moderate TBI

Brain Science Advances 2020年第4期6卷 364-378页

作者： Galina V.Portnova irina n.girzhova Olga V.Martynova Institute of Higher nervous Activity and neurophysiology of the Russian Academy of Science Moscow 117485Russia The Pushkin State Russian Language Institute Moscow 117485Russia Lomonosov Moscow State University Moscow 119192Russia Centre for Cognition and Decision Making Institute for Cognitive NeuroscienceNational Research University Higher School of EconomicsMoscow 109028Russia

Purpose:Even in years after recovery from moderate traumatic brain injury(moderate TBI),patients complain about residual cognitive impairment and *** hypothesized that non-linear and linear resting-state electroencephalography(rs EEG)features might also reflect neural underpinnings of these ***:We analyzed a 10-minute rs EEG in 77 moderate TBI-survivors and 151 healthy volunteers after cognitive and psychological *** rs EEG analysis included linear measures,such as power spectral density and peak alpha frequency,and non-linear parameters such as Higuchi fractal dimension,envelope frequency,and Hjorth ***:The patients with moderate TBI had higher scores for fatigue and sleepiness and lower scores for mood and life satisfaction than *** behavioral test for directed attention showed a smaller and non-significant between-group *** rs EEG patterns,moderate TBI-group had significantly higher deltaand theta-rhythm power,which correlated with higher sleepiness and fatigue *** higher beta and lower alpha power were associated with a higher attention level in moderate TBI ***-linear rs EEG features were significantly higher in moderate TBI patients than in healthy controls but correlated with sleepiness and fatigue scores in both controls and ***:The rs EEG patterns may reflect compensatory processes supporting directed attention and residual effect of moderate TBI causing subjective fatigue in patients even after full physiological recovery.

关键词： moderate TBI attention fatigue resting state electroencephalography power spectral density Higuchi fractal dimension Hjorth complexity envelope frequency

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