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Induced Cross-Modal Synaesthetic Experience Without Abnormal Neuronal Connections

Kadosh, RC; Henik, A; Catena, A; Walsh, V; Fuentes, LJ; (2009) Induced Cross-Modal Synaesthetic Experience Without Abnormal Neuronal Connections. PSYCHOL SCI , 20 (2) 258 - 265. 10.1111/j.1467-9280.2009.02286.x.

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Abstract

Are the kinds of abnormal cross-modal interactions seen in synaesthesia or following brain damage due to hyperconnectivity between or within brain areas, or are they a result of lack of inhibition? This question is highly contested. Here we show that posthypnotic suggestion induces abnormal cross-modal experience similar to that observed in congenital grapheme-color synaesthesia. Given the short time frame of the experiment, it is unlikely that new cortical connections were established, so we conclude that synaesthesia can result from disinhibition between brain areas.

Type: Article
Title: Induced Cross-Modal Synaesthetic Experience Without Abnormal Neuronal Connections
DOI: 10.1111/j.1467-9280.2009.02286.x
Keywords: TRANSCRANIAL MAGNETIC STIMULATION, GRAPHEME-COLOR SYNESTHESIA, COGNITIVE NEUROSCIENCE, VISUAL-PERCEPTION, PARIETAL-LOBE, HUMAN BRAIN, CORTEX, SCALE, TMS
UCL classification: UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Brain Sciences
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
URI: http://discovery.ucl.ac.uk/id/eprint/179344
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