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

Western Sydney University

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

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.

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 - 2021

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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title = "Temporal dissociation of neural activity underlying synesthetic and perceptual colors",

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.",

author = "Lina Teichmann and Tijl Grootswagers and Denise Moerel and Carlson, {Thomas A.} and Rich, {Anina N.}",

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AU - Teichmann, Lina

AU - Grootswagers, Tijl

AU - Moerel, Denise

AU - Carlson, Thomas A.

AU - Rich, Anina N.

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

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

U2 - 10.1073/pnas.2020434118

DO - 10.1073/pnas.2020434118

M3 - Article

SN - 0027-8424

VL - 118

JO - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

IS - 6

M1 - e2020434118

ER -

Temporal dissociation of neural activity underlying synesthetic and perceptual colors

Abstract

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