Title |
The emergence of semantic categorization in early visual processing: ERP indices of animal vs. artifact recognition
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Published in |
BMC Neuroscience, April 2007
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DOI | 10.1186/1471-2202-8-24 |
Pubmed ID | |
Authors |
Alice M Proverbio, Marzia Del Zotto, Alberto Zani |
Abstract |
Neuroimaging and neuropsychological literature show functional dissociations in brain activity during processing of stimuli belonging to different semantic categories (e.g., animals, tools, faces, places), but little information is available about the time course of object perceptual categorization. The aim of the study was to provide information about the timing of processing stimuli from different semantic domains, without using verbal or naming paradigms, in order to observe the emergence of non-linguistic conceptual knowledge in the ventral stream visual pathway. Event related potentials (ERPs) were recorded in 18 healthy right-handed individuals as they performed a perceptual categorization task on 672 pairs of images of animals and man-made objects (i.e., artifacts). |
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Mendeley readers
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Canada | 1 | <1% |
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