在等级认知控制过程中,丘脑编码和更新上下文表示
Xitong Chen1,2,3, Stephanie C Leach1,2,3, Juniper Hollis1,2,3
1Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, Iowa, United States of America.
PLoS biology
|December 2, 2024
概括
人类的丘脑通过组织任务上下文,在认知控制中发挥关键作用. 乳头活动及其与皮质的相互作用对于层次认知控制至关重要.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 认知心理学 认知心理学
背景情况:
- 认知灵活性取决于层次任务表示.
- 人类丘脑在认知控制中的作用还没有得到充分的研究.
- 了解甲状腺皮层相互作用是认知控制的关键.
研究的目的:
- 为了研究在等级认知控制中的thalamic表示.
- 探索有助于任务表示的thalamocortical相互作用.
- 阐明泰拉马斯在组织任务背景中的作用.
主要方法:
- 功能神经成像 (fMRI) 用于测量大脑活动.
- 唤起响应分析以识别与任务交换相关的活动.
- 解码分析,以评估任务背景的thalamic编码.
- 开发一个thalamocortical功能相互作用模型.
主要成果:
- 在任务上下文切换过程中,特定的乳头核 (前部,中背部,腹侧部,肺部) 显示反应增加.
- 发现thalamic活动在等级表示中编码任务上下文.
- 开发的甲状腺皮质模型准确地预测了与上下文表示相关的皮质活动模式.
- 该模型在预测上下文相关的皮质活动方面表现优于基线模型.
结论:
- 胸膜活动是等级认知控制的组成部分.
- 甲状腺皮层的相互作用对情境指导的行为有显著的贡献.
- 泰拉马斯积极参与组织和表现任务环境,以实现灵活的认知.
更多相关视频
09:00Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
Published on: April 15, 2015
12.3K
11:47Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum
Published on: February 15, 2015
28.6K
相关概念视频
Diencephalon: Thalamus and Information Relay
1.5K
The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological...
1.5K
Diencephalon: Anatomical Regions
1.6K
The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses...
1.6K
Working Memory
134
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...
134
Lobes of the Cerebrum
546
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....
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
546
Hierarchy of Motor Control
2.5K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
2.5K
Diencephalon: Hypothalamus and Coordination
1.3K
The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
1.3K
