一个不可预测的大脑是一个有意识的,响应的大脑
Sima Mofakham1, Jermaine Robertson1, Noah Lubin1
1Stony Brook University.
Journal of cognitive neuroscience
|April 5, 2024
概括
严重的创伤性脑损伤 (TBI) 可以导致昏迷,其特征是简单的脑活动. 从这种状态恢复的标志是皮层复杂性和不可预测性增加,为意识障碍提供生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 计算神经科学是一种神经科学.
背景情况:
- 严重的创伤性脑损伤 (TBI) 通常导致失去意识或昏迷.
- 在昏迷患者中,皮质动力学简化为重复和可预测的模式.
- 假设这种被动皮质状态源于被破坏的thalamocortical输入.
研究的目的:
- 审查证据,将昏迷中的低复杂性皮层动态与阻碍意识的被动状态联系起来.
- 探索在这种被动状态下,甲状腺皮层输入损失的作用.
- 识别用于恢复意识的电生理学生物标志物,并为治疗策略提供信息.
主要方法:
- 对创伤性脑损伤中的皮质动态现有数据和文献的审查.
- 分析局部现场潜力 (LFP) 记录以评估皮质复杂性和可预测性.
- 关于甲状腺皮层输入和被动皮层状态的假设制定.
主要成果:
- 深度昏迷的皮层动态的特点是复杂性低,可预测性高,表明被动状态.
- 这种被动状态与一个稳定的,重复的吸引力有关,它阻碍了神经元组合形成,这是意识所必需的.
- 增加LFP信号的不可预测性和复杂性意味着从昏迷吸引力中恢复过来.
结论:
- 在TBI诱导昏迷中的被动皮质状态是由于thalamocortical输入的损失造成的.
- 电生理学生物标志物,特别是皮质复杂性和不可预测性,表明意识的恢复.
- 这些生物标志物可以指导闭环刺激的发展,用于治疗意识障碍.
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