Grapheme-color and tone-color synesthesia is associated with structural brain changes in visual regions implicated in color, form, and motion

Michael J. Banissy, Lauren Stewart, Neil G. Muggleton, Timothy D. Griffiths, Vincent Y. Walsh, Jamie Ward, Ryota Kanai

研究成果: 雜誌貢獻期刊論文同行評審

32 引文 斯高帕斯(Scopus)

摘要

Synesthesia is a rare condition in which stimulation in one modality leads to a secondary experience in another sensory modality. Varying accounts attribute the condition to either neuroanatomical differences between the synesthetes and non-synesthetes or functional differences in how sensory brain regions interact. This study employed voxel-based morphometry to examine whether synesthetes who experience both grapheme-color and tone-color synesthesia as their evoked sensation show neuroanatomical differences in gray matter volume compared to non-synesthetes. We observed that synesthetes showed an increase in gray matter volume in left posterior fusiform gyrus (FG), but a concomitant decrease in anterior regions of left FG and left MT/V5. These findings imply that synesthesia for color is linked to neuroanatomical changes between adjacent regions of the visual system.

原文???core.languages.en_GB???
頁(從 - 到)29-35
頁數7
期刊Cognitive Neuroscience
3
發行號1
DOIs
出版狀態已出版 - 3月 2012

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