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在N-Back任务期间,定量EEG测量的禁食和认知负载相关变化.

Adrián Ávila-Garibay1, Andrés A González-Garrido1, Fabiola R Gómez-Velázquez1

  • 1Instituto de Neurociencias, CUCBA, Universidad de Guadalajara, México. Francisco de Quevedo 180, 44130, Guadalajara, Jalisco, México. Universidad de Guadalajara Instituto de Neurociencias Universidad de Guadalajara GuadalajaraJalisco Mexico.

International journal of psychological research
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PubMed
概括

禁食可能会微妙地改变大脑活动,特别是在苛刻的认知任务中增加额头太功率. 这表明,由于长时间的禁食,认知控制机制可能发生暂时的变化.

关键词:
注意力 注意力 注意力 注意力认知负载 认知负载禁食禁食是一種禁食.在N-Back中使用.工作记忆 工作记忆一个QEEG耳机.

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科学领域:

  • 神经科学是一个神经科学.
  • 认知心理学 认知心理学

背景情况:

  • 注意力过程对于认知功能至关重要.
  • 禁食对定量脑电图活动 (qEEG) 的影响尚不清楚.
  • 以前的研究表明,代谢状态和大脑功能之间存在潜在的联系.

研究的目的:

  • 为了研究18小时的禁食期对行为表现和 qEEG绝对功率在n-back任务中的影响.
  • 检查认知负载如何与禁食相互作用以影响大脑活动.
  • 探索与禁食和认知需求相关的和α功率的具体变化.

主要方法:

  • 26名参与者在两个条件下完成了n-back任务:禁食和定期早餐.
  • 这项任务涉及两种认知负载水平.
  • 定量脑电图 (qEEG) 数据被记录下来,并分析了theta和alpha波段的绝对功率.
  • 选择了无人工物EEG时代进行分析.

主要成果:

  • 较高的认知负载导致准确性降低,额头和身的Theta功率增加.
  • 禁食显示,对前部区域的Theta功率有相关的增加.
  • 阿尔法力量在左前中心位置增加.
  • 对于theta功率,观察到认知负载和记录位置之间的显著相互作用.

结论:

  • 虽然禁食并没有大大改变整体脑电图功率,但它与额头的太功率增加有关,这可能表明认知控制的暂时变化.
  • 认知负载显著影响注意力表现和大脑活动,特别是力.
  • 这些发现有助于理解代谢状态,认知负载和神经活动之间的相互作用.