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Synaesthesia: learned or lost?

Kadosh, RC; Henik, A; Walsh, V; (2009) Synaesthesia: learned or lost? DEVELOPMENTAL SCI , 12 (3) 484 - 491. 10.1111/j.1467-7687.2008.00798.x.

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Abstract

The question why synaesthesia, an atypical binding within or between modalities, occurs is both enduring and important. Two explanations have been provided: (1) a congenital explanation: we are all born as synaesthetes but most of us subsequently lose the experience due to brain development; (2) a learning explanation: synaesthesia is related to some learning process during childhood. Three recent studies provide conflicting support for these explanations. Two studies supported the idea that synaesthesia is learned by showing that the frequency of everyday language implicitly modulates the synaesthetic experience. Another study argued that synaesthesia reflects basic, innate magnitude representations. In this paper we reassess these points of view, and show that it is possible for both to be valid. These findings are integrated into an interactive specialization account of development in order to explain the neuronal mechanism underlying synaesthesia.

Type:Article
Title:Synaesthesia: learned or lost?
DOI:10.1111/j.1467-7687.2008.00798.x
Keywords:GRAPHEME-COLOR SYNAESTHESIA, COGNITIVE NEUROSCIENCE, 6-MONTH-OLD INFANTS, SENSITIVE PERIODS, BRAIN-DEVELOPMENT, SYNESTHESIA, NUMBER, REPRESENTATION, DISCRIMINATION, ASSOCIATIONS
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences

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