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Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study

Functional Near-Infrared spectroscopy (fNIRS) is a neuroimaging tool that has been recently used in a variety of cognitive paradigms. Yet, it remains unclear whether fNIRS is suitable to study complex cognitive processes such as categorization or discrimination. Previously, functional imaging has su...

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Autores principales: Gruber, Thibaud, Debracque, Coralie, Ceravolo, Leonardo, Igloi, Kinga, Marin Bosch, Blanca, Frühholz, Sascha, Grandjean, Didier
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7290129/
https://www.ncbi.nlm.nih.gov/pubmed/32581695
http://dx.doi.org/10.3389/fnins.2020.00570
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author Gruber, Thibaud
Debracque, Coralie
Ceravolo, Leonardo
Igloi, Kinga
Marin Bosch, Blanca
Frühholz, Sascha
Grandjean, Didier
author_facet Gruber, Thibaud
Debracque, Coralie
Ceravolo, Leonardo
Igloi, Kinga
Marin Bosch, Blanca
Frühholz, Sascha
Grandjean, Didier
author_sort Gruber, Thibaud
collection PubMed
description Functional Near-Infrared spectroscopy (fNIRS) is a neuroimaging tool that has been recently used in a variety of cognitive paradigms. Yet, it remains unclear whether fNIRS is suitable to study complex cognitive processes such as categorization or discrimination. Previously, functional imaging has suggested a role of both inferior frontal cortices in attentive decoding and cognitive evaluation of emotional cues in human vocalizations. Here, we extended paradigms used in functional magnetic resonance imaging (fMRI) to investigate the suitability of fNIRS to study frontal lateralization of human emotion vocalization processing during explicit and implicit categorization and discrimination using mini-blocks and event-related stimuli. Participants heard speech-like but semantically meaningless pseudowords spoken in various tones and evaluated them based on their emotional or linguistic content. Behaviorally, participants were faster to discriminate than to categorize; and processed the linguistic faster than the emotional content of stimuli. Interactions between condition (emotion/word), task (discrimination/categorization) and emotion content (anger, fear, neutral) influenced accuracy and reaction time. At the brain level, we found a modulation of the Oxy-Hb changes in IFG depending on condition, task, emotion and hemisphere (right or left), highlighting the involvement of the right hemisphere to process fear stimuli, and of both hemispheres to treat anger stimuli. Our results show that fNIRS is suitable to study vocal emotion evaluation, fostering its application to complex cognitive paradigms.
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spelling pubmed-72901292020-06-23 Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study Gruber, Thibaud Debracque, Coralie Ceravolo, Leonardo Igloi, Kinga Marin Bosch, Blanca Frühholz, Sascha Grandjean, Didier Front Neurosci Neuroscience Functional Near-Infrared spectroscopy (fNIRS) is a neuroimaging tool that has been recently used in a variety of cognitive paradigms. Yet, it remains unclear whether fNIRS is suitable to study complex cognitive processes such as categorization or discrimination. Previously, functional imaging has suggested a role of both inferior frontal cortices in attentive decoding and cognitive evaluation of emotional cues in human vocalizations. Here, we extended paradigms used in functional magnetic resonance imaging (fMRI) to investigate the suitability of fNIRS to study frontal lateralization of human emotion vocalization processing during explicit and implicit categorization and discrimination using mini-blocks and event-related stimuli. Participants heard speech-like but semantically meaningless pseudowords spoken in various tones and evaluated them based on their emotional or linguistic content. Behaviorally, participants were faster to discriminate than to categorize; and processed the linguistic faster than the emotional content of stimuli. Interactions between condition (emotion/word), task (discrimination/categorization) and emotion content (anger, fear, neutral) influenced accuracy and reaction time. At the brain level, we found a modulation of the Oxy-Hb changes in IFG depending on condition, task, emotion and hemisphere (right or left), highlighting the involvement of the right hemisphere to process fear stimuli, and of both hemispheres to treat anger stimuli. Our results show that fNIRS is suitable to study vocal emotion evaluation, fostering its application to complex cognitive paradigms. Frontiers Media S.A. 2020-06-05 /pmc/articles/PMC7290129/ /pubmed/32581695 http://dx.doi.org/10.3389/fnins.2020.00570 Text en Copyright © 2020 Gruber, Debracque, Ceravolo, Igloi, Marin Bosch, Frühholz and Grandjean. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Gruber, Thibaud
Debracque, Coralie
Ceravolo, Leonardo
Igloi, Kinga
Marin Bosch, Blanca
Frühholz, Sascha
Grandjean, Didier
Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title_full Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title_fullStr Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title_full_unstemmed Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title_short Human Discrimination and Categorization of Emotions in Voices: A Functional Near-Infrared Spectroscopy (fNIRS) Study
title_sort human discrimination and categorization of emotions in voices: a functional near-infrared spectroscopy (fnirs) study
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7290129/
https://www.ncbi.nlm.nih.gov/pubmed/32581695
http://dx.doi.org/10.3389/fnins.2020.00570
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