Temporal dissociation of neural activity underlying synesthetic and perceptual colors

Lina Teichmann; Tijl Grootswagers; Denise Moerel; Thomas A. Carlson; Anina N. Rich

doi:10.1073/pnas.2020434118

Temporal dissociation of neural activity underlying synesthetic and perceptual colors

Lina Teichmann
, Tijl Grootswagers
, Denise Moerel
, Thomas A. Carlson
, Anina N. Rich

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Grapheme-color synesthetes experience color when seeing achromatic symbols. We examined whether similar neural mechanisms underlie color perception and synesthetic colors using magneto-encephalography. 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.

Original language	English
Article number	e2020434118
Number of pages	3
Journal	Proceedings of the National Academy of Sciences
Volume	118
Issue number	6
DOIs	https://doi.org/10.1073/pnas.2020434118
Publication status	Published - 9 Feb 2021

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Open Access - Access Right Statement

This open access article is distributed under Creative Commons Attribution-NonCommercial- NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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10.1073/pnas.2020434118

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abstract = "Grapheme-color synesthetes experience color when seeing achromatic symbols. We examined whether similar neural mechanisms underlie color perception and synesthetic colors using magneto-encephalography. 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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AU - Teichmann, Lina

AU - Grootswagers, Tijl

AU - Moerel, Denise

AU - Carlson, Thomas A.

AU - Rich, Anina N.

PY - 2021/2/9

Y1 - 2021/2/9

N2 - Grapheme-color synesthetes experience color when seeing achromatic symbols. We examined whether similar neural mechanisms underlie color perception and synesthetic colors using magneto-encephalography. 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.

AB - Grapheme-color synesthetes experience color when seeing achromatic symbols. We examined whether similar neural mechanisms underlie color perception and synesthetic colors using magneto-encephalography. 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.

UR - https://hdl.handle.net/1959.7/uws:59848

U2 - 10.1073/pnas.2020434118

DO - 10.1073/pnas.2020434118

M3 - Article

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SN - 0027-8424

VL - 118

JO - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

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ER -

Temporal dissociation of neural activity underlying synesthetic and perceptual colors

Abstract

Bibliographical note

Open Access - Access Right Statement

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