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首页> 外文期刊>Journal of Neuroscience Methods >A comparison of two cognitive test paradigms in a penetrating brain injury model.
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A comparison of two cognitive test paradigms in a penetrating brain injury model.

机译:穿透性脑损伤模型中两种认知测试范例的比较。

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摘要

A rat model of penetrating ballistic-like brain injury (PBBI) was recently established to study military-relevant severe traumatic brain injury (TBI). The purpose of this study was to conduct a side-by-side evaluation of two well-established cognitive testing paradigms: the novel object recognition (NOR) task and the Morris water maze (MWM) task. Accordingly, male Sprague-Dawley rats were subjected to PBBI and their cognitive abilities were assessed at 7 and 21 days post-PBBI. Although PBBI animals had more difficulty completing both tasks compared to sham animals, their performance on the NOR task was confounded by a high degree of within-group variability that was likely due to attention deficits produced by the injury. In contrast, PBBI produced consistent, significant spatial learning deficits in the MWM task. Overall, these results suggest that the MWM task provides a more appropriate cognitive test for the PBBI model that would be useful for testing promising neuroprotective therapeutics.
机译:最近建立了大鼠穿透性弹道样脑损伤(PBBI)模型,以研究与军事相关的严重颅脑损伤(TBI)。这项研究的目的是对两种公认的认知测试范式进行并行评估:新颖的物体识别(NOR)任务和莫里斯水迷宫(MWM)任务。因此,对雄性Sprague-Dawley大鼠进行PBBI,并在PBBI后7和21天评估其认知能力。尽管与假动物相比,PBBI动物在完成这两项任务上有更大的困难,但是它们在NOR任务上的表现却受到组内高度差异的困扰,这很可能是由于受伤引起的注意力缺陷所致。相反,PBBI在MWM任务中产生了一致的,显着的空间学习缺陷。总体而言,这些结果表明,MWM任务为PBBI模型提供了更合适的认知测试,这将有助于测试有前途的神经保护疗法。

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