期刊
COGNITION
卷 108, 期 2, 页码 566-577出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cognition.2008.03.009
关键词
concepts; categories; visual search; labels; top-down effects; visual processing; attention
Do conceptual categories affect basic visual processing? A conceptual grouping effect for familiar stimuli is reported using a visual search paradigm. Search through conceptually-homogeneous non-targets was faster and more efficient than search through conceptually-heterogeneous non-targets. This effect cannot be attributed to perceptual factors and is not explained by a long-term representational reorganization due to perceptual-learning. Rather, conceptual categories seem to modulate visual representations dynamically, and are sensitive to task-demands. Verbally labeling a visual target further exaggerates the degree to which conceptual categories penetrate visual processing. (c) 2008 Elsevier B.V. All rights reserved.
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