人类视觉皮层中的对象知识表示需要与语言系统的连接
Bo Liu1,2,3,4, Xiaosha Wang1, Xiaoying Wang1
1State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.
PLoS biology
|May 20, 2025
概括
大脑是大脑的大脑.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 神经心理学 神经心理学
背景情况:
- 了解人类大脑如何存储世界知识是认知神经科学的一个关键问题.
- 对象知识通常在更高层次的感官区域中发现,但语言系统的作用仍在争论中.
- 调查对象颜色知识为语言系统在神经表示中的必要性提供了一个测试案例.
研究的目的:
- 确定与语言系统的沟通是否对于视觉皮层中对象知识的神经表征至关重要.
- 检查视觉语言连接对象知识行为的影响.
- 阐明语言感官系统界面在知识表示中的作用.
主要方法:
- 在中风患者中联合扩散成像,功能性MRI (fMRI) 和神经心理评估 (N=33).
- 测量了白质结构完整性,功能神经表征和行为完整性.
- 在左半球,右半球或双边半球分析病变.
主要成果:
- 前语言区域和腹部视觉皮层之间的白物质完整性损失显著影响了对象颜色知识表示.
- 这种结构损伤也影响了物体的颜色知识行为跨模式.
- 结果独立于早期视觉感知途径和混认知变量.
结论:
- 视觉 - 语言连接在腹部角皮层 (VOTC) 对于对象知识的神经表现至关重要.
- 这种连接在对象知识行为中也起着重要作用.
- 这项研究强调了语言感官系统接口对于存储世界知识的重要性.
相关概念视频
Visual System
468
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Once through the pupil, the light passes through the lens, a...
468
Motor and Sensory Areas of the Cortex
2.7K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
2.7K
Vision
52.9K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
52.9K
Higher Mental Functions of the Brain: Language
706
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
706
Association Areas of the Cortex
4.8K
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,...
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,...
4.8K
Somatosensory, Motor, and Association Cortex
367
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...
367


