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

^*Corresponding author for this work

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

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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.

Original language	English
Article number	e2020434118
Pages (from-to)	1-3
Number of pages	3
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	118
Issue number	6
DOIs	https://doi.org/10.1073/pnas.2020434118
Publication status	Published - 9 Feb 2021

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

synesthesia
MEG
MVPA
color

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Improving inferences from brain imaging to understand selective attention
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Decoding the neural representation of objects in the human brain
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Cite this

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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 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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Temporal dissociation of neural activity underlying synesthetic and perceptual colors. / Teichmann, Lina; Grootswagers, Tijl; Moerel, Denise; Carlson, Thomas A.; Rich, Anina N.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 118, No. 6, e2020434118, 09.02.2021, p. 1-3.

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

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AU - Rich, Anina N.

N1 - Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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.

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Temporal dissociation of neural activity underlying synesthetic and perceptual colors

Abstract

Bibliographical note

Keywords

Access to Document

Improving inferences from brain imaging to understand selective attention

Decoding the neural representation of objects in the human brain

Cite this