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- Publisher Website: 10.1523/JNEUROSCI.2450-15.2015
- Scopus: eid_2-s2.0-84946935020
- PMID: 26558785
- WOS: WOS:000366054200017
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Article: Human amygdala represents the complete spectrum of subjective valence
Title | Human amygdala represents the complete spectrum of subjective valence |
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Authors | |
Keywords | Emotion Multivoxel pattern analysis Olfactory Valence fMRI Amygdala |
Issue Date | 2015 |
Citation | Journal of Neuroscience, 2015, v. 35, n. 45, p. 15145-15156 How to Cite? |
Abstract | © 2015 the authors. Although the amygdala is a major locus for hedonic processing, how it encodes valence information is poorly understood. Given the hedonic potency of odor stimuli and the amygdala’s anatomical proximity to the peripheral olfactory system, we combined highresolution fMRI with pattern-based multivariate techniques to examinehowvalence information is encoded in the amygdala. Tenhuman subjects underwent fMRI scanning while smelling 9 odorants that systematically varied in perceived valence. Representational similarity analyses showed that amygdala codes the entire dimension of valence, ranging from pleasantness to unpleasantness. This unidimensional representation significantly correlated with self-reported valence ratings but not with intensity ratings. Furthermore, within-trial valence representations evolved over time, prioritizing earlier differentiation of unpleasant stimuli. Together, these findings underscore the idea that both spatial and temporal features uniquely encode pleasant and unpleasant odor valence in the amygdala. The availability of a unidimensional valence code in the amygdala, distributed in both space and time, would create greater flexibility in determining the pleasantness or unpleasantness of stimuli, providing a mechanism by which expectation, context, attention, and learning could influence affective boundaries for guiding behavior. |
Persistent Identifier | http://hdl.handle.net/10722/277641 |
ISSN | 2023 Impact Factor: 4.4 2023 SCImago Journal Rankings: 2.321 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Jin, Jingwen | - |
dc.contributor.author | Zelano, Christina | - |
dc.contributor.author | Gottfried, Jay A. | - |
dc.contributor.author | Mohanty, Aprajita | - |
dc.date.accessioned | 2019-09-27T08:29:34Z | - |
dc.date.available | 2019-09-27T08:29:34Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Journal of Neuroscience, 2015, v. 35, n. 45, p. 15145-15156 | - |
dc.identifier.issn | 0270-6474 | - |
dc.identifier.uri | http://hdl.handle.net/10722/277641 | - |
dc.description.abstract | © 2015 the authors. Although the amygdala is a major locus for hedonic processing, how it encodes valence information is poorly understood. Given the hedonic potency of odor stimuli and the amygdala’s anatomical proximity to the peripheral olfactory system, we combined highresolution fMRI with pattern-based multivariate techniques to examinehowvalence information is encoded in the amygdala. Tenhuman subjects underwent fMRI scanning while smelling 9 odorants that systematically varied in perceived valence. Representational similarity analyses showed that amygdala codes the entire dimension of valence, ranging from pleasantness to unpleasantness. This unidimensional representation significantly correlated with self-reported valence ratings but not with intensity ratings. Furthermore, within-trial valence representations evolved over time, prioritizing earlier differentiation of unpleasant stimuli. Together, these findings underscore the idea that both spatial and temporal features uniquely encode pleasant and unpleasant odor valence in the amygdala. The availability of a unidimensional valence code in the amygdala, distributed in both space and time, would create greater flexibility in determining the pleasantness or unpleasantness of stimuli, providing a mechanism by which expectation, context, attention, and learning could influence affective boundaries for guiding behavior. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Neuroscience | - |
dc.subject | Emotion | - |
dc.subject | Multivoxel pattern analysis | - |
dc.subject | Olfactory | - |
dc.subject | Valence | - |
dc.subject | fMRI | - |
dc.subject | Amygdala | - |
dc.title | Human amygdala represents the complete spectrum of subjective valence | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1523/JNEUROSCI.2450-15.2015 | - |
dc.identifier.pmid | 26558785 | - |
dc.identifier.scopus | eid_2-s2.0-84946935020 | - |
dc.identifier.volume | 35 | - |
dc.identifier.issue | 45 | - |
dc.identifier.spage | 15145 | - |
dc.identifier.epage | 15156 | - |
dc.identifier.eissn | 1529-2401 | - |
dc.identifier.isi | WOS:000366054200017 | - |
dc.identifier.issnl | 0270-6474 | - |