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Updated: Nov 19, 2025

Training Synesthetic Letter-color Associations by Reading in Color
Published on: February 20, 2014
Temporal dissociation of neural activity underlying synesthetic and perceptual colors
Lina Teichmann1,2, Tijl Grootswagers3, Denise Moerel4,2
1Perception in Action Research Centre, Macquarie University, Macquarie Park, NSW 2109, Australia; lina.teichmann@nih.gov.
Abstract:
Grapheme-color synesthetes experience color when seeing achromatic symbols. We examined whether similar neural mechanisms underlie color perception and synesthetic colors using magnetoencephalography. Classification models trained on neural activity from viewing colored stimuli could distinguish synesthetic color evoked by achromatic symbols after a delay of ∼100 ms. Our results provide an objective neural signature for synesthetic experience and temporal evidence consistent with higher-level processing in synesthesia.
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