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相关概念视频

Working Memory01:24

Working Memory

181
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...
181

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相关实验视频

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3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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在自发性偏头痛发作期间的工作记忆:fMRI研究

Amparo Ruiz-Tagle1,2, Patrícia Figueiredo3, Joana Pinto4

  • 1Instituto Superior Técnico, Universidade de Lisboa, ISR-Lisboa/LARSyS and Department of Bioengineering, Lisbon, Portugal. amparuiztagle@gmail.com.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
|October 17, 2023
PubMed
概括

偏头痛发作涉及工作记忆和执行功能区域的大脑活动的改变. 当患有偏头痛时,患者在认知任务期间表现出前极和轨道前皮层的激活增加.

关键词:
认知 认知是一种认知.在N-back的背部.自发的偏头痛发作是自发的测试-重新测试功能磁力共振成像 (fMRI) 是一种功能共振成像.

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科学领域:

  • 神经科学是一个神经科学.
  • 认知神经学 认知神经学
  • 医疗成像医学成像

背景情况:

  • 在偏头痛发作期间经常报告认知障碍,影响日常功能.
  • 负责偏头痛期间这些认知缺陷的潜在神经机制尚不清楚.

研究的目的:

  • 在急性偏头痛发作期间探索工作记忆功能的神经相关物.
  • 在偏头痛患者在攻击期间与无疼痛期间进行工作记忆任务期间比较大脑活动.

主要方法:

  • 功能性磁共振成像 (fMRI) 用于一个内部主体,试验-重试设计.
  • 十一名患有插曲性偏头痛的妇女在进行N-back工作记忆任务时接受了fMRI,同时在ictal和interictal状态中执行N-back工作记忆任务.
  • 两种情况之间的认知表现和大脑激活模式进行了比较.

主要成果:

  • 在偏头痛发作 (发作) 期间,工作记忆任务的表现明显低于无痛 (发作) 状态.
  • 虽然工作记忆区域在两个状态都被激活,但在ictal阶段,在左前极和轨道前皮层中观察到更大的激活.
  • 这些发现表明,在经历偏头痛时,在认知任务中增加了特定大脑区域的招募.

结论:

  • 偏头痛患者在经历攻击时,在工作记忆任务期间,表现出左前极和轨道前皮层的高度激活.
  • 这种与疼痛处理和抑制控制相关的区域的激活增加可能代表一种补偿机制.
  • 该研究表明,患者在偏头痛发作期间招募抑制性神经网络来管理认知需求,这有助于观察到的认知困难.