甲状腺下核对子的感知决策有因果作用
Kathryn Branam1, Joshua I Gold1, Long Ding1
1Department of Neuroscience, University of Pennsylvania, Philadelphia, United States.
eLife
|September 23, 2024
概括
甲状腺下核 (STN) 对于决策至关重要. 研究表明,STN神经元影响大脑中的证据积累和决策边界.
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
- 计算神经科学是一种神经科学.
背景情况:
- 亚thalamic核 (STN) 是基本质功能不可或缺的组成部分,影响运动和认知过程.
- 它在决策中的确切作用,特别是在不确定的证据的情况下,仍然不完全理解.
研究的目的:
- 通过使用杂的证据,研究STN在视觉顺序决策中的因果和计算作用.
- 测试有关特定STN对决策贡献的理论预测.
主要方法:
- 在视觉 - 脚步任务期间,在健康子的STN中使用单单元记录.
- 利用STN的电微刺激来观察对行为的影响.
- 分析神经元活动模式和行为选择,以应对不同的证据.
主要成果:
- 确定了不同的STN神经元子群,其活动模式与预测的功能相关.
- 微刺激调节了行为选择和反应时间,表明STN参与了决策界限.
- 证明了STN对证据积累和决策过程的非感知方面的贡献.
结论:
- STN在支持包括决策在内的高级大脑功能方面发挥了多种多方面的作用.
- 调查结果澄清了STN对"积累到绑定"决策框架的贡献.
- 提供了对基于证据的选择背后的神经机制的新见解.
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
1.7K
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...
1.7K
Diencephalon: Hypothalamus and Coordination
1.4K
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...
1.4K
Subliminal Perception
246
Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
246
Reason and Intuition
6.4K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
6.4K
Brainstem: Control Centers of Medulla
1.5K
The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei.
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
1.5K


