Traumatic brain injuries (TBIs) cause immediate and temporary alterations in brain function that result in a variety of symptoms including impacts on speech. Symptoms of dysarthria and aphasia occur but are primarily reported in moderate-severe injuries. Less is known about the specific changes in acoustic parameters and language that occur in mild concussions. A total of 250 athletes at Seton Hall University participated in baseline speech testing. Speech testing was performed again in a subset of 15 athletes who sustained a mild concussion (within 72 h). Speech and language analysis was performed on samples derived from a picture description task. Statistical comparisons showed minimal changes in acoustic parameters on average, but individual differences were present. Specifically, some individuals presented with a flatter prosody and/or lower mean pitch than others post-injury compared to baseline. Although no clear pattern of acoustic changes emerged, language analysis (semantics, syntax, morphology) showed an overall reduction of complexity of productions. Language outcomes indicate that changes in speech symptoms occur even in mild cases. Further investigations should examine the speech and language changes after a head injury against the individual’s complete symptom profile and neurological regions of damage in a larger sample size.
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