基于全景和地标的视图集成在人类场景选择性皮质中的独特机制
Linfeng Tony Han1, Russell A Epstein1
1Department of Psychology, University of Pennsylvania 3710 Hamilton Walk, Philadelphia PA, 19104, USA.
bioRxiv : the preprint server for biology
|February 3, 2025
概括
大脑使用两个不同的神经通路来构建认知地图:一个用于整合来自单个位置的视图 (相同的全景),另一个用于整合来自多个位置的地标的视图 (相同的地标). 这项研究确定了参与每个过程的特定大脑区域.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 空间导航 空间导航
背景情况:
- 创建认知地图需要整合对同一环境的不同观点.
- 存在两种主要的整合策略:在单个有利的角度 (相同的全景) 内或在使用地标 (相同的地标) 的多个观点之间.
研究的目的:
- 为了调查这两种观点整合过程是否依赖于不同的神经解剖学基质.
- 根据全景与地标视图集成,识别参与代表地点的特定大脑区域.
主要方法:
- 人类参与者执行空间记忆任务的fMRI扫描.
- 多维素模式分析 (MVPA) 用于检查大脑活动模式.
- 熟悉一个虚拟的城市路线,在相同的全景和相同的地标条件下,具有独特的相关店面.
主要成果:
- 逆复合体 (RSC) 显示出相同全景集成的显著活动.
- 副海马位置区域 (PPA) 显示出同地标集成的显著活动.
- 额外的全景关联效应被发现在背部-流 parietal 区域.
结论:
- 展示了整合视觉信息形成空间表示的两个不同的神经机制.
- 突出了RSC和PPA在认知地图形成方面的功能专业化.
- 提供了自我中心 (基于观察者) 和非中心 (基于地标) 空间处理的单独神经通路的证据.
相关概念视频
Parallel Processing
143
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
143
Motor and Sensory Areas of the Cortex
2.8K
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...
2.8K
Visual System
484
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...
484
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
Somatosensory, Motor, and Association Cortex
386
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...
386
Depth Perception and Spatial Vision
523
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
523


