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相关概念视频

Concepts and Prototypes01:24

Concepts and Prototypes

220
The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
220
Organization of the Brain01:30

Organization of the Brain

1.1K
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
1.1K
Storage01:23

Storage

131
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
131
Somatosensory, Motor, and Association Cortex01:24

Somatosensory, Motor, and Association Cortex

902
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...
902
Association Areas of the Cortex01:21

Association Areas of the Cortex

6.2K
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,...
6.2K
Encoding01:19

Encoding

244
Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
244

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相关实验视频

Updated: Sep 9, 2025

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

45.8K

大脑中的事件和对象概念的共同表示代码

Jia-Qing Tong1, Jeffrey R Binder1,2, Lisa L Conant1

  • 1Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA.

bioRxiv : the preprint server for biology
|September 2, 2025
PubMed
概括
此摘要是机器生成的。

对象和事件概念的神经表现共享一个共同的代码, 而不是不同的类别. 这一发现提升了对概念表示和脑机接口的理解.

关键词:
其他类别概念表示实施方案一个事件功能磁共振成像接地认知一个对象语义学

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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

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相关实验视频

Last Updated: Sep 9, 2025

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
13:12

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

45.8K
Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

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科学领域:

  • 认知神经科学
  • 神经成像
  • 计算神经科学

背景情况:

  • 人类通过物体和事件来构思世界.
  • 对象与事件概念表示的神经基础是不清楚的.
  • 调查分类区别与共享的表示代码.

研究的目的:

  • 确定对象和事件概念的神经表示是否有分别的区别.
  • 调查共享代码的性质,如果有的话.
  • 探索对大脑与计算机接口技术的影响.

主要方法:

  • 功能磁共振成像 (fMRI) 数据分析.
  • 对神经反应的多维素模式分析 (MVPA).
  • 基于特征的解码模型使用体验级别.

主要成果:

  • 对象和事件概念在关联皮层的重叠模式中表示.
  • 一个共享的表示代码被确定,有效解码两个概念类型.
  • 经验性功能评级模拟了共享代码和特定类别的激活差异.

结论:

  • 对象和事件表示之间的神经解剖学差异来自基本经验特征的定量变化.
  • 一个共享的表示代码是对象和事件的概念处理的基础.
  • 描述这种代码对于开发解码概念内容的脑电脑接口至关重要.