| When blue is larger than red: colors influence numerical cognition in synesthesia. | |
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MedLine Citation:
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PMID: 16269112 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In synesthesia, certain stimuli ("inducers") may give rise to perceptual experience in additional modalities not normally associated with them ("concurrent"). For example, color-grapheme synesthetes automatically perceive achromatic numbers as colored (e.g., 7 is turquoise). Although synesthetes know when a given color matches the one evoked by a certain number, colors do not automatically give rise to any sort of number experience. The behavioral consequences of synesthesia have been documented using Stroop-like paradigms, usually using color judgments. Owing to the unidirectional nature of the synesthetic experience, little has been done to obtain performance measures that could indicate whether bidirectional cross-activation occurs in synesthesia. Here it is shown that colors do implicitly evoke numerical magnitudes in color-grapheme synesthetes, but not in nonsynesthetic participants. It is proposed that bidirectional coactivation of brain areas is responsible for the links between color and magnitude processing in color-grapheme synesthesia and that unidirectional models of synesthesia might have to be revised. |
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Authors:
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Roi Cohen Kadosh; Noam Sagiv; David E J Linden; Lynn C Robertson; Gali Elinger; Avishai Henik |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of cognitive neuroscience Volume: 17 ISSN: 0898-929X ISO Abbreviation: J Cogn Neurosci Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-11-04 Completed Date: 2006-03-21 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8910747 Medline TA: J Cogn Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 1766-73 Citation Subset: IM |
Affiliation:
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Ben-Gurion University of the Negev, Israel. roico@bgu.ac.il |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cognition / physiology* Color Perception / physiology* Female Form Perception / physiology Humans Learning / physiology Pattern Recognition, Visual / physiology* Photic Stimulation / methods Reaction Time / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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