Examining daily quantitative electroencephalographic (qEEG), psychophysical and antropometric measures over a one week period.
Date
2015-06-17
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Abstract
The consequences of concussive injuries have been considered reversible, trivial, or
permanent depending upon the perspective of the professional and the precision of the
measurement tool. Saturated (daily) quantitative electroencephalographic (qEEG)
measurements for 7 days after a sports-related concussive injury and for 7 days about 8 months
later revealed conspicuous changes in power measurements in specific frequency bands over
the impact site as well as within specific, likely contrecoup, areas. The fluctuations with time
may accommodate the contradiction of results for concussive-EEG effects within the medical
and scientific literature. Normative qEEG profiles for 20 normal participants collected daily for 7
days indicated extraordinarily strong intra-individual consistencies in power metrics and suggest
that variability from easily established normative quantifications of topographic EEG activity
could differentially discern concussive effects. The concordance of shifts in mood states with the
power for relevant frequencies over expected regions of the cerebrum classically associated
with different moods supports the validity of the subjective experience-brain location coupling
and the direct contribution of subtle alterations in EEG power within certain frequency bands
and cerebral regions to the types of mood.
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Keywords
Quantitatiave electroencephalography, qEEG, Mild traumatic brain injury, TBI and mTBI, emotion, Concussion, Sports-related concussion, Soccer, Psychophysical, POMS, Profile of Moods States, Affective states