title: The neural legacy of a single concussion.
abstract: It has been hypothesized that concussions impart lasting brain damage, even after a patient has ostensibly recovered. This hypothesis is based largely upon neuropathological studies in deceased athletes, however, leaving open the question of whether it can be detected in vivo. We measured neural responses to speech in collegiate student-athletes with a history of a single concussion from which they had recovered. These student-athletes had weaker responses to speech than age- and position-matched peers. This group difference suggests that concussions engender small, but detectable, changes in brain function prior to the emergence of frank behavioral indications.
authors.affiliation: Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, IL, USA(1); Department of Neurobiology, Northwestern University, Evanston, IL, USA; Department of Otolaryngology, Northwestern University, Chicago, IL, USA. Electronic address: nkraus@northwestern.edu.
authors.forename: Nina
authors.initials: N
authors.lastname: Kraus
authors.affiliation: Sports Medicine Unit, Department of Athletics, Northwestern University, Evanston, IL, USA(2).
authors.forename: Tory
authors.initials: T
authors.lastname: Lindley
authors.affiliation: Sports Medicine Unit, Department of Athletics, Northwestern University, Evanston, IL, USA(2).
authors.forename: Danielle
authors.initials: D
authors.lastname: Colegrove
authors.affiliation: Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, IL, USA(1).
authors.forename: Jennifer
authors.initials: J
authors.lastname: Krizman
authors.affiliation: Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, IL, USA(1).
authors.forename: Sebastian
authors.initials: S
authors.lastname: Otto-Meyer
authors.affiliation: Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, IL, USA(1).
authors.forename: Elaine C
authors.initials: EC
authors.lastname: Thompson
authors.affiliation: Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, IL, USA(1).
authors.forename: Travis
authors.initials: T
authors.lastname: White-Schwoch
mesh_terms: D000293:Adolescent; D056352:Athletes; D001265:Athletic Injuries / Q000503:physiopathology*; D001924:Brain Concussion / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology*; D001930:Brain Injuries / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D013060:Speech / Q000502:physiology; D013334:Students; D055815:Young Adult
keywords: Auditory processing; Concussion; FFR; Mild traumatic brain injury; Neurophysiology; Sports medicine