期刊
NEUROSCIENTIST
卷 26, 期 3, 页码 252-265出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1073858419882621
关键词
color; brain damage; color perception; language; color knowledge; neuroimaging; ventral visual stream; anomia; agnosia; achromatopsia
资金
- Ecole des Neurosciences Paris Ile de France
- ANR [ANR-16-CE37-0005, ANR-10-IAIHU-06]
Color provides valuable information about the environment, yet the exact mechanisms explaining how colors appear to us remain poorly understood. Retinal signals are processed in the visual cortex through high-level mechanisms that link color perception with top-down expectations and knowledge. Here, we review the neuroimaging evidence about color processing in the brain, and how it is affected by acquired brain lesions in humans. Evidence from patients with brain-damage suggests that high-level color processing may be divided into at least three modules: perceptual color experience, color naming, and color knowledge. These modules appear to be functionally independent but richly interconnected, and serve as cortical relays linking sensory and semantic information, with the final goal of directing object-related behavior. We argue that the relations between colors and their objects are key mechanisms to understand high-level color processing.
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