Perceptual grouping in visual word recognition
نویسندگان
چکیده
منابع مشابه
Perceptual Grouping Enhances Visual Plasticity
Visual perceptual learning, a manifestation of neural plasticity, refers to improvements in performance on a visual task achieved by training. Attention is known to play an important role in perceptual learning, given that the observer's discriminative ability improves only for those stimulus feature that are attended. However, the distribution of attention can be severely constrained by percep...
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We used lateralized Event-Related Potential (ERP) measures - the N2pc and CDA/SPCN components - to assess the role of grouping by target similarity during enumeration. Participants saw a variable number (0, 1, 2 or 3) of same- or differently-colored targets presented among homogeneous distracters, and performed an enumeration task. Results showed that the N2pc, but not the CDA, was larger for m...
متن کاملHow visual perceptual grouping influences foot placement
Everybody would agree that vision guides locomotion; but how does vision influence choice when there are different solutions for possible foot placement? We addressed this question by investigating the impact of perceptual grouping on foot placement in humans. Participants performed a stepping stone task in which pathways consisted of target stones in a spatially regular path of foot falls and ...
متن کاملPerceptual Grouping and Change Detection Perceptual Grouping in Change Detection Perceptual Grouping and Change Detection
Detection of an item changing its location from one instance to another is typically unaffected by changes in the shape or color of contextual items. However, we demonstrate here that such location change detection is severely impaired if the elongated axes of contextual items change orientation, even though individual locations remain constant and even though the orientation was irrelevant to ...
متن کاملPerceptual grouping-dependent lightness processing in human early visual cortex.
Lightness, the perceived relative achromatic reflectance of a surface, depends strongly on the context within which the surface is viewed. Modest changes in the two-dimensional configuration or three-dimensional scene geometry may lead to profound variations in lightness even though the surface luminance remains constant. Despite recent progress, we are far from a complete understanding of how ...
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ژورنال
عنوان ژورنال: Memory & Cognition
سال: 1993
ISSN: 0090-502X,1532-5946
DOI: 10.3758/bf03211167