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相关概念视频

Cerebral Hemispheres01:05

Cerebral Hemispheres

394
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
394
Lobes of the Cerebrum01:22

Lobes of the Cerebrum

750
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
750
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

499
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
499
Association Areas of the Cortex01:21

Association Areas of the Cortex

5.5K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
5.5K
Lateralization01:28

Lateralization

367
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
367
Somatosensory, Motor, and Association Cortex01:24

Somatosensory, Motor, and Association Cortex

566
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
566

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相关实验视频

Updated: Jul 24, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

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在人类前额叶皮层的子空间分区解决了认知干扰.

Jan Weber1,2, Gabriela Iwama1,2, Anne-Kristin Solbakk3,4,5,6

  • 1Hertie Institute for Clinical Brain Research, Center for Neurology, University Medical Center Tübingen, 72076 Tübingen, Germany.

Proceedings of the National Academy of Sciences of the United States of America
|July 3, 2023
PubMed
概括
此摘要是机器生成的。

灵活的认知控制的大脑机制涉及解决前额叶皮层 (PFC) 的干扰. 神经编码分区任务信息,降低行为转换成本,并实现可适应的决策.

关键词:
认知控制是认知控制.内脑电图 (EEG) 的发生.人口几何学人口几何学前额叶皮层前额叶皮层

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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex

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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Published on: February 1, 2012

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相关实验视频

Last Updated: Jul 24, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex

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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 计算神经科学是一种神经科学.

背景情况:

  • 灵活的认知控制对于适应行为至关重要.
  • 人的前额叶皮质 (PFC) 是认知控制的关键.
  • 大脑如何在没有干扰的情况下管理多个任务变量是不清楚的.

研究的目的:

  • 研究人类PFC中认知控制的神经机制.
  • 了解大脑如何同时编码多个任务变量.
  • 确定如何最大限度地减少与任务相关的和无关的特征之间的干扰.

主要方法:

  • 使用了来自人类PFC的内记录.
  • 分析了任务执行期间的神经群体活动.
  • 与任务变化相关的量化行为转换成本.

主要成果:

  • 在PFC中,过去和现在的任务表示之间的竞争导致行为转换成本.
  • 将编码分成不同的低维神经状态解决了这种干扰.
  • 这种神经机制显著减轻了行为转换成本.

结论:

  • 该PFC使用编码分区来管理竞争的神经表征.
  • 这种机制对于灵活的认知控制至关重要.
  • 研究结果揭示了大脑如何通过尽量减少干扰来实现适应性行为.