Brain Connectivity, Acute Post-Concussion Symptoms, and Cognition in Adults With Concussion: A Quantitative Electroencephalography Study

Mild traumatic brain injury (mTBI) accounts for 80–90% of all TBI. Post-mTBI symptoms are measured using the Post-Concussion Symptom Scale (PCSS); however, symptom heterogeneity limits specificity. Better understanding neuropathophysiology underlying post-concussion could enhance diagnostic accuracy. We explored association between network connectivity, PCSS and neuropsychological functioning within 7 days post-mTBI. hypothesized that dysregulation would (a) correlate positively with scores (b) negatively cognitive performance; (c) performance scores. Network activity was in 19 participants aged 21 to 65, following a medically diagnosed mTBI. Quantitative electroencephalography (qEEG) default mode, salience, frontoparietal networks, while cognition via assessment. Hypothesis not supported. Of domains, support only found an dysfunction immediate memory. There no were sensitive indicator status did reflect regulation. This study provides preliminary evidence memory as altered connectivity acute Evaluating neurophysiological impacts mTBI may improve individual recovery needs.