Kraus Nina, Lindley Tory, Colegrove Danielle, Krizman Jennifer, Otto-Meyer Sebastian, Thompson Elaine C, White-Schwoch Travis
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.
Sports Medicine Unit, Department of Athletics, Northwestern University, Evanston, IL, USA(2).
Neurosci Lett. 2017 Apr 12;646:21-23. doi: 10.1016/j.neulet.2017.03.008. Epub 2017 Mar 6.
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.
据推测，即使患者表面上已康复，脑震荡也会造成永久性脑损伤。然而，这一推测主要基于对已故运动员的神经病理学研究，因此能否在活体中检测到这种损伤仍是个问题。我们测量了有单次脑震荡病史且已康复的大学生运动员对言语的神经反应。这些学生运动员对言语的反应比年龄和位置匹配的同龄人弱。这种群体差异表明，在出现明显行为迹象之前，脑震荡会导致大脑功能发生微小但可检测到的变化。
