ABSTRACT

A concussion is known as a functional injury affecting brain communication, integration, and processing. There is a need to objectively measure how concussions disrupt brain activation while completing ecologically relevant tasks.

The objective of this study was to compare brain activation patterns between concussion and comparison groups (non-concussed youth) during a cognitive-motor single and dual-task paradigm utilizing functional near-infrared spectroscopy (fNIRS) in regions of the frontal-parietal attention network and compared to task performance.

Youth with concussion generally exhibited hyperactivation and recruitment of additional brain regions in the dorsal lateral prefrontal (DLPFC), superior (SPC) and inferior parietal cortices (IPC), which are associated with processing, information integration, and response selection. Additionally, hyper- or hypo-activation patterns were associated with slower processing speed on the cognitive task. Our findings corroborate the growing literature suggesting that neural recovery may be delayed compared to the restoration of behavioral performance post-concussion.

Concussion, near-infrared spectroscopy, dual-task paradigm, cognitive, motor, brain activation

抽象的

脑震荡是一种影响大脑交流，整合和加工的功能性损伤。在完成与生态相关的任务时，需要客观地测量脑震荡如何破坏大脑的激活。

这项研究的目的是利用额叶顶叶注意区域的功能性近红外光谱法（fNIRS），比较认知运动单任务和双任务范式在脑震荡组和对照组（未脑震荡的青年）之间的大脑激活模式。网络并与任务性能进行比较。

患有脑震荡的青年通常在背外侧前额叶（DLPFC），上侧（SPC）和下壁顶皮质（IPC）中表现出过度激活和补充其他大脑区域，这与处理，信息整合和反应选择相关。此外，过度或过度激活模式与认知任务的处理速度较慢有关。我们的发现证实了越来越多的文献，提示与脑震荡后行为表现的恢复相比，神经恢复可能会延迟。

脑震荡，近红外光谱，双重任务范式，认知，运动，脑部激活