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基于近红外光谱的功能性神经反训练调节了任务时间效应,并提高了持续的认知表现
Jiayu Xu1,2, Wenchao Zhang1,2, Juan Yu3
1Center for Brain Imaging, School of Life Science and Technology, Xidian University & Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, Xifeng Road, Chang'an District, Xi'an, Shaanxi 710126, China.
Cerebral cortex (New York, N.Y. : 1991)
|June 21, 2024
概括
基于近红外光谱的功能性神经反训练通过增强背侧前额皮层活动来改善持续的认知表现. 这种神经反方法减轻了任务时间的影响,减少了在苛刻的认知任务期间的性能下降.
科学领域:
- 认知神经科学 认知神经科学
- 神经科学是一个神经科学.
- 人与计算机的交互
背景情况:
- 在苛刻的认知工作中,表现下降和事故风险增加的任务时间效应是常见的.
- 神经反提供了一种非侵入性神经调节技术,以引导大脑活动的自我调节,潜在地改善认知功能.
- 持续的注意力和认知表现在许多职业中至关重要,这使得对抗疲劳和表现下降的干预措施非常重要.
研究的目的:
- 研究基于功能近红外光谱学 (fNIRS) 的神经反对减轻任务时间效应的有效性.
- 评估神经反对在需要长时间注意力的任务中持续认知表现的影响.
- 检查神经相关物,特别是与神经反训练相关的背侧前额皮层 (dlPFC) 激活.
主要方法:
- 采用了一种随机的,单盲的,假控制的研究设计.
- 参与者 (n=33) 被分为一个神经反组 (从他们的dlPFC获得实时fNIRS反) 和一个假神经反组.
- 两组都接受了5次培训,并完成了2个背部和精神运动警觉任务,以评估行为表现.
主要成果:
- 与假装组相比,神经反组显示dlPFC激活显著增加.
- 神经反导致了双背任务的提高准确性和心理运动警觉任务的减少响应时间.
- 关键的是,神经反组在持续的双反任务上表现较慢的性能下降,这表明时间-任务效应的缓解.
结论:
- 基于fNIRS的神经反训练在提高持续认知表现方面是有效的.
- 神经反可以成功调节dlPFC活动,从而改善认知功能和减少任务时间的减少.
- 这种神经调节技术对旨在在长期要求高的任务中维持认知表现的干预措施具有前景.
相关概念视频
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Hebbian LTP
LTP can occur when presynaptic neurons...

