从中间的以形状为中心的表示到对定向形状的感知:对评论的回应
Gilles Vannuscorps1,2,3,4, Albert Galaburda5, Alfonso Caramazza1,6
1Department of Psychology, Harvard University, Cambridge, MA, USA.
Cognitive neuropsychology
|August 29, 2023
概括
本文讨论了视觉感知中的中间形状中心表示 (ISCR),探讨了它们在边缘检测和整合到有意识的视觉意识中的起源. 此外,还研究了ISCR背后的神经机制.
科学领域:
- 视觉神经科学是一种神经科学.
- 认知心理学 认知心理学
- 计算视觉 计算机视觉 计算机视觉
背景情况:
- 视觉系统处理复杂的信息以形成连贯的感知.
- 了解中间表示是解释视觉意识的关键.
研究的目的:
- 为回应关于中间形状中心表示 (ISCR) 的存在和特征的评论.
- 详细阐述ISCR从边缘检测的出现及其融入意识感知.
- 讨论ISCRs潜在的神经机制.
主要方法:
- 现有研究的理论分析和综合.
- 解决目标文章评论员提出的具体问题.
- 视觉处理的概念框架开发.
主要成果:
- 确认和阐述ISCR的存在和属性.
- 解释ISCR从多种视觉特征检测中出现的原因.
- 讨论将ISCR整合到意识感知的更高层次参考框架.
结论:
- 在将早期视觉处理与有意识的视觉体验相结合时,ISCRs起着至关重要的作用.
- 拟议的模型为理解视觉表示和感知提供了一个框架.
- 对神经机制的进一步研究是有必要的.
相关概念视频
Gestalt Principles of Perception
343
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
343
Perception
504
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
504
Depth Perception and Spatial Vision
714
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.
714
Gestalt Psychology
581
Gestalt psychology, founded by Max Wertheimer, Kurt Koffka, and Wolfgang Kohler, emphasizes the importance of understanding perception as an organized whole. Developed as a counter to Wilhelm Wundt's structuralism, this approach posits that our perceptions are more than just the sum of sensory parts; they are comprehensive wholes where the relationships between parts define the perception. The principle "The whole is greater than the sum of its parts" encapsulates this view,...
581
Fischer Projections
13.4K
Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines.
13.4K
Perceptual Constancy
438
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
438


