Anomalous perception in synaesthesia

A cognitive neuroscience perspective

Anina N. Rich, Jason B. Mattingley*

*Corresponding author for this work

Research output: Contribution to journalArticle

139 Citations (Scopus)

Abstract

An enduring question in cognitive neuroscience is how the physical properties of the world are represented in the brain to yield conscious perception. In most people, a particular physical stimulus gives rise to a unitary, unimodal perceptual experience. So, light energy leads to the sensation of seeing, whereas sound waves produce the experience of hearing. However, for individuals with the rare phenomenon of synaesthesia, specific physical stimuli consistently induce more than one perceptual experience. For example, hearing particular sounds might induce vivid experiences of colour, taste or odour, as might the sight of visual symbols, such as letters or digits. Here we review the latest findings on synaesthesia, and consider its possible genetic, neural and cognitive bases. We also propose a neurocognitive framework for understanding such anomalous perceptual experiences.

Original languageEnglish
Pages (from-to)43-52
Number of pages10
JournalNature Reviews Neuroscience
Volume3
Issue number1
DOIs
Publication statusPublished - 2002
Externally publishedYes

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