Human amygdala response to dynamic facial expressions of positive and negative surprise
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| Názov: | Human amygdala response to dynamic facial expressions of positive and negative surprise |
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| Autori: | Vrticka Pascal, Lordier Lara, Bediou Benoit, Sander David |
| Zdroj: | Emotion, Vol. 14, No 1 (2014) pp. 161-169 Emotion |
| Informácie o vydavateľovi: | American Psychological Association (APA), 2014. |
| Rok vydania: | 2014 |
| Predmety: | Male, Brain Mapping, Emotions, Happiness, Recognition, Psychology, Fear, Recognition (Psychology), Anxiety, Amygdala, Magnetic Resonance Imaging, Facial Expression, Young Adult, 03 medical and health sciences, 0302 clinical medicine, ddc:150, Amygdala/physiology, Humans, Female, 10. No inequality |
| Popis: | Although brain imaging evidence accumulates to suggest that the amygdala plays a key role in the processing of novel stimuli, only little is known about its role in processing expressed novelty conveyed by surprised faces, and even less about possible interactive encoding of novelty and valence. Those investigations that have already probed human amygdala involvement in the processing of surprised facial expressions either used static pictures displaying negative surprise (as contained in fear) or "neutral" surprise, and manipulated valence by contextually priming or subjectively associating static surprise with either negative or positive information. Therefore, it still remains unresolved how the human amygdala differentially processes dynamic surprised facial expressions displaying either positive or negative surprise. Here, we created new artificial dynamic 3-dimensional facial expressions conveying surprise with an intrinsic positive (wonderment) or negative (fear) connotation, but also intrinsic positive (joy) or negative (anxiety) emotions not containing any surprise, in addition to neutral facial displays either containing ("typical surprise" expression) or not containing ("neutral") surprise. Results showed heightened amygdala activity to faces containing positive (vs. negative) surprise, which may either correspond to a specific wonderment effect as such, or to the computation of a negative expected value prediction error. Findings are discussed in the light of data obtained from a closely matched nonsocial lottery task, which revealed overlapping activity within the left amygdala to unexpected positive outcomes. |
| Druh dokumentu: | Article |
| Popis súboru: | application/pdf |
| Jazyk: | English |
| ISSN: | 1931-1516 1528-3542 |
| DOI: | 10.1037/a0034619 |
| Prístupová URL adresa: | https://pubmed.ncbi.nlm.nih.gov/24219397 https://archive-ouverte.unige.ch/unige:98059 https://www.ncbi.nlm.nih.gov/pubmed/24219397 https://pubmed.ncbi.nlm.nih.gov/24219397/ https://core.ac.uk/display/46084108 http://pubman.mpdl.mpg.de/pubman/item/escidoc:2048056 http://cms.unige.ch/fapse/EmotionLab/pdf/VrtickaLordierBediouSander(2014)Emotion.pdf https://archive-ouverte.unige.ch/unige:98059 |
| Prístupové číslo: | edsair.doi.dedup.....4927a47fee503d95b3160f82964db134 |
| Databáza: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstrakt: | Although brain imaging evidence accumulates to suggest that the amygdala plays a key role in the processing of novel stimuli, only little is known about its role in processing expressed novelty conveyed by surprised faces, and even less about possible interactive encoding of novelty and valence. Those investigations that have already probed human amygdala involvement in the processing of surprised facial expressions either used static pictures displaying negative surprise (as contained in fear) or "neutral" surprise, and manipulated valence by contextually priming or subjectively associating static surprise with either negative or positive information. Therefore, it still remains unresolved how the human amygdala differentially processes dynamic surprised facial expressions displaying either positive or negative surprise. Here, we created new artificial dynamic 3-dimensional facial expressions conveying surprise with an intrinsic positive (wonderment) or negative (fear) connotation, but also intrinsic positive (joy) or negative (anxiety) emotions not containing any surprise, in addition to neutral facial displays either containing ("typical surprise" expression) or not containing ("neutral") surprise. Results showed heightened amygdala activity to faces containing positive (vs. negative) surprise, which may either correspond to a specific wonderment effect as such, or to the computation of a negative expected value prediction error. Findings are discussed in the light of data obtained from a closely matched nonsocial lottery task, which revealed overlapping activity within the left amygdala to unexpected positive outcomes. |
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| ISSN: | 19311516 15283542 |
| DOI: | 10.1037/a0034619 |