Department of Psychology, University of Nebraska-Lincoln, United States; Department of Psychiatry and Behavioral Sciences, University of Washington, United States.
Department of Psychology, University of Nebraska-Lincoln, United States; Department of Cognitive Science, Johns Hopkins University, United States.
Int J Psychophysiol. 2018 Oct;132(Pt A):135-144. doi: 10.1016/j.ijpsycho.2017.09.020. Epub 2017 Oct 10.
Sports-related concussions occur in approximately 21% of college athletes with implications for long-term cognitive impairments in working memory. Working memory involves the capacity to maintain short-term information and integrate with higher-order cognitive processing for planning and behavior execution, critical skills for optimal cognitive and athletic performance. This study quantified working memory impairments in 36 American football college athletes (18-23years old) using event-related potentials (ERPs). Despite performing similarly in a standard 2-back working memory task, athletes with history of concussion exhibited larger P1 and P3 amplitudes compared to Controls. Concussion History group latencies were slower for the P1 and faster for the N2. Source estimation analyses indicated that previously concussed athletes engaged different brain regions compared to athletes with no concussion history. These findings suggest that ERPs may be a sensitive and objective measure to detect long-term cognitive consequences of concussion.
运动相关性脑震荡在大约 21%的大学生运动员中发生，可能导致长期认知的工作记忆损伤。工作记忆涉及维持短期信息的能力，并与高阶认知加工整合，以进行规划和行为执行，这是最佳认知和运动表现的关键技能。本研究使用事件相关电位 (ERP) 量化了 36 名美式橄榄球大学生运动员（18-23 岁）的工作记忆损伤。尽管在标准的 2 -back 工作记忆任务中表现相似，但有脑震荡史的运动员的 P1 和 P3 振幅比对照组更大。脑震荡史组的 P1 潜伏期较慢，N2 潜伏期较快。源估计分析表明，与没有脑震荡史的运动员相比，之前遭受过脑震荡的运动员使用了不同的大脑区域。这些发现表明，ERP 可能是一种敏感和客观的测量方法，可用于检测脑震荡的长期认知后果。
