Moore Robert D, Broglio Steven P, Hillman Charles H
Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign.
J Athl Train. 2014 Jan-Feb;49(1):36-41. doi: 10.4085/1062-6050-49.1.02. Epub 2013 Dec 30.
The long-term implications of concussive injuries for brain and cognitive health represent a growing concern in the public consciousness. As such, identifying measures sensitive to the subtle yet persistent effects of concussive injuries is warranted.
To investigate how concussion sustained early in life influences visual processing in young adults. We predicted that young adults with a history of concussion would show decreased sensory processing, as noted by a reduction in P1 event-related potential component amplitude.
Cross-sectional study.
Research laboratory.
Thirty-six adults (18 with a history of concussion, 18 controls) between the ages of 20 and 28 years completed a pattern-reversal visual evoked potential task while event-related potentials were recorded.
MAIN OUTCOME MEASURE(S): The groups did not differ in any demographic variables (all P values > .05), yet those with a concussive history exhibited reduced P1 amplitude compared with the control participants (P = .05).
These results suggest that concussion history has a negative effect on visual processing in young adults. Further, upper-level neurocognitive deficits associated with concussion may, in part, result from less efficient downstream sensory capture.
脑震荡损伤对大脑和认知健康的长期影响在公众意识中日益受到关注。因此，有必要确定对脑震荡损伤的细微但持续影响敏感的测量方法。
研究早年发生的脑震荡如何影响年轻成年人的视觉处理。我们预测，有脑震荡病史的年轻成年人会表现出感觉处理能力下降，这表现为P1事件相关电位成分振幅降低。
横断面研究。
研究实验室。
36名年龄在20至28岁之间的成年人（18名有脑震荡病史，18名对照）完成了一项模式反转视觉诱发电位任务，同时记录事件相关电位。
两组在任何人口统计学变量上均无差异（所有P值>.05），但有脑震荡病史的人与对照参与者相比，P1振幅降低（P =.05）。
这些结果表明，脑震荡病史对年轻成年人的视觉处理有负面影响。此外，与脑震荡相关的高级神经认知缺陷可能部分源于下游感觉捕捉效率较低。
