在子中对自然主义纹理图像的神经和行为反应.
Corey M Ziemba1, Robbe L T Goris1, Gabriel M Stine1
1Center for Neural Science, New York University, New York, NY.
概括
视觉皮层V2中的神经元对纹理的敏感性比V1更强,但纹理感知可能会进一步发展下游. 支持纹理决策的神经活动在个人和任务之间不稳定.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 计算神经科学是一种神经科学.
背景情况:
- 纹理对于自然视觉中的场景理解至关重要.
- 以前的研究表明,V2神经元对纹理统计的选择性比V1神经元更强.
研究的目的:
- 研究 V1 和 V2 中的神经元活动与对纹理自然性的行为判断之间的关系.
- 为了确定V2神经元灵敏度是否与V1神经元灵敏度相比更接近于行为表现.
主要方法:
- 在的V1和V2中记录了单细胞活动.
- 训练子在使用从自然主义噪音到阶段随机化噪音的刺激进行纹理歧视任务.
- 分析了与行为报告相对的神经元信息内容和选择预测活动.
主要成果:
- 单个V1和V2神经元携带的关于纹理自然性的信息比行为判断要少.
- V2神经元敏感度与V1神经元敏感度相比,显著更接近行为表现.
- 与选择相关的V1和V2活动预测了一个子的选择,而不是另一个.
结论:
- 支持纹理感知的神经机制可能延伸到V2之外.
- 早期视觉区域的与选择相关的神经活动取决于观察者和任务.
- 这种活动与神经元敏感性没有密切联系,可能不会直接代表感知决策形成.
关键词:
V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2 V2选择的概率 选择的概率在决策过程中做出决定.马可克 (Macaque) 是一个巨.质地 质地 质地更多相关视频
09:46A Pressure Injection System for Investigating the Neuropharmacology of Information Processing in Awake Behaving Macaque Monkey Cortex
Published on: March 14, 2016
8.4K
07:08Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
Published on: August 1, 2018
8.3K
相关概念视频
Cognitivism
Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process information is...
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process information is...
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...
Steps in the Modeling Process
Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
Natural and Artificial Concepts
In psychology, concepts can be divided into two categories: natural and artificial. Natural concepts are formed through direct or indirect experiences. For example, consider the concept of snow. If you live in a place with regular snowfall, such as Essex Junction, Vermont, you know snow through direct experiences. You’ve seen it fall, touched it, shoveled it, and played in it. You recognize its texture, appearance, and even its smell. In contrast, if you live on an island like Saint Vincent in...
