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Working Memory01:24

Working Memory

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Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
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认知和大脑网络连接在定时的上升和上升性能中.

Benxamin Varela-López1,2, Santiago Galdo-Álvarez1,2, Alba Felpete1,3

  • 1Instituto de Psicoloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.

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概括

大脑网络连接和认知功能预测了老年人的移动性. 特定的连接,比如体运动手腹注意力,影响定时启动和启动 (TUG) 测试的表现,突出了注意力系统在衰老步行中的作用.

关键词:
执行职能 执行职能是指执行职能.步行方式 步行方式记忆 记忆 记忆 记忆 记忆休息状态连接 休息状态连接

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科学领域:

  • 神经科学是一个神经科学.
  • 老年学是一门学科.
  • 生物医学工程 生物医学工程

背景情况:

  • 步行表现与整个寿命中的大脑功能和认知过程有关.
  • 定时上升和移动 (TUG) 测试可靠地评估老年人与年龄相关的移动性和跌倒风险.
  • 了解影响TUG表现的因素对于保持老龄化人口的独立性至关重要.

研究的目的:

  • 使用运动认知网络间连接,认知能力和社会人口统计因素预测定时启动和启动 (TUG) 测试表现.
  • 识别与步态不同方面相关的特定大脑网络连接,包括总时间,转动时间和转动峰角速度 (PAV).
  • 阐明注意力系统在衰老期间的步行表现中的作用.

主要方法:

  • 189名认知正常的参与者通过使用无线惯性传感器进行了移动性评估,用于TUG测试.
  • 在预先定义的大脑区域的对对相关性使用时,分析了体运动手,小脑和认知网络之间的功能连接.
  • 线性回归模型使用年龄,性别,教育,认知分数和网络间连接性预测了TUG指标 (总时间,转动时间,PAV).

主要成果:

  • 索马托摩托手-腹注意力和小脑-默认模式网络 (DMN) 连接性预测了 TUG 总时间.
  • 记忆性能,体运动手的突出性和体运动手的运行连接性预测了转动时间.
  • 年龄,教育程度,体机动手背注意力和小脑-状骨网络激活预测转向PAV.

结论:

  • 互联网连接,特别是涉及注意力系统,显著预测了老年人的步行表现指标.
  • 不同的大脑网络的相互作用与步态的不同方面有关,例如总体速度与转动.
  • 研究结果强调了大脑网络,特别是注意力系统对与年龄相关的步态变化的多样性贡献.