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相关概念视频

Vision01:24

Vision

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.
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Visual System01:26

Visual System

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...
Parallel Processing01:20

Parallel Processing

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...

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相关实验视频

Updated: Jun 7, 2026

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

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开放的多中心内脑电图数据集与任务探测有意识的视觉感知.

Alia Seedat1, Alex Lepauvre2,3, Jay Jeschke1

  • 1Department of Neurology, New York University Grossman School of Medicine, New York, NY, 10016, USA.

Scientific data
|May 23, 2025
PubMed
概括

这一新的内EEG (iEEG) 数据集,是在意识理论上的对抗性合作中收集的,为视觉处理和任务相关性提供了有价值的见解.

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Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
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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: Jun 7, 2026

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11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

13.6K
Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
11:31

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks

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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 心理学 心理学 心理学

背景情况:

  • 意识研究涉及竞争的理论,如全球神经工作空间理论和综合信息理论.
  • 内EEG (iEEG) 提供高分辨率的神经数据,用于研究大脑功能.
  • 跨多个中心的标准化实验协议提高了数据的可比性.

研究的目的:

  • 为意识科学引入一种新的,高质量的iEEG数据集.
  • 促进研究,比较全球神经元工作空间理论和综合信息理论.
  • 支持对视觉刺激处理,目标检测和任务相关性的调查.

主要方法:

  • 收集了来自三个研究中心38名患者的iEEG数据.
  • 呈现的视觉刺激 (面孔,物体,字母,假字体) 在不同的方向和持续时间.
  • 实施了Go/No-Go任务,以评估刺激处理和任务相关性,以及一个运动定位器任务.
  • 确保数据质量,转换为脑成像数据结构 (BIDS),并包括行为和眼睛跟踪数据.

主要成果:

  • 该数据集符合BIDS标准,无标识,并包括全面的参与者信息.
  • 提供预处理和分析代码,以方便数据重复使用.
  • 该数据集可以在不同的任务条件下详细检查神经对视觉刺激的反应.

结论:

  • 这个iEEG数据集是意识和视觉神经科学的宝贵资源.
  • 它支持对意识,注意力和任务特定处理的神经相关的研究.
  • 对抗性协作框架和标准化协议增强了数据集的科学实用性.