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Beyond Smiles: Static Expressions in Maxillary Protrusion and Associated Positivity
Chen, Lijing1,2; Jiang, Jiuhui3; Li, Xingshan2; Ding, Jinfeng2; Paterson, Kevin B.4; Rao, Li-Lin2
First AuthorChen, Lijing
Correspondent Emaildrjiangw@163.com (jiuhui jiang )
Contribution Rank2
Abstract

Smiles play an important role in social perception. However, it is unclear whether a similar role is played by static facial features associated with smiles (e.g., stretched mouth and visible teeth). In dental science, maxillary dental protrusions increase the baring of the teeth and thus produce partial facial features of a smile even when the individual is not choosing to smile, whereas mandibular dental protrusions do not. We conducted three experiments to assess whether individuals ascribe positive evaluations to these facial features, which are not genuine emotional expressions. In Experiment 1, participants viewed facial photographs of maxillary and mandibular protrusions and indicated the smiling and emotional status of the faces. The results showed that, while no difference was observed in participants' perception of the presence of a smile across both types of dental protrusion, participants felt more positive to faces with maxillary than mandibular protrusions. In Experiment 2, participants completed an Implicit Association Test (IAT) test measuring implicit attitudes toward faces with maxillary vs. mandibular protrusions. The results showed that participants had more positive attitude toward faces with maxillary than mandibular protrusions. In Experiment 3, individuals with either maxillary or mandibular protrusions completed the same IAT test to assess whether any preference would be affected by in-group/out-group preferences. The results showed both groups had more positive attitudes toward faces with maxillary protrusion, indicating that this preference is independent of the group effect. These findings suggest that facial features associated with smiles are viewed positively in social situations. We discuss this in terms of the social-function account.

KeywordImplicit Association Test implicit attitude mandibular protrusion smile social-function account maxillary protrusion
2021-03-30
Language英语
DOI10.3389/fpsyg.2021.514016
Source PublicationFRONTIERS IN PSYCHOLOGY
ISSN1664-1078
Volume12Pages:9
Subtype实证研究
Indexed BySSCI
PublisherFRONTIERS MEDIA SA
WOS Research AreaPsychology
WOS SubjectPsychology, Multidisciplinary
WOS IDWOS:000639339800001
WoS QuartileQ2
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/38882
Collection中国科学院行为科学重点实验室
Corresponding AuthorJiang, Jiuhui
Affiliation1.Fujian Normal Univ, Sch Psychol, Fuzhou, Peoples R China
2.Chinese Acad Sci, Inst Psychol, CAS Key Lab Behav Sci, Beijing, Peoples R China
3.Peking Univ, Sch Stomatol, Beijing, Peoples R China
4.Univ Leicester, Dept Neurosci Psychol & Behav, Leicester, Leics, England
First Author AffilicationKey Laboratory of Behavioral Science, CAS
Recommended Citation
GB/T 7714
Chen, Lijing,Jiang, Jiuhui,Li, Xingshan,et al. Beyond Smiles: Static Expressions in Maxillary Protrusion and Associated Positivity[J]. FRONTIERS IN PSYCHOLOGY,2021,12:9.
APA Chen, Lijing,Jiang, Jiuhui,Li, Xingshan,Ding, Jinfeng,Paterson, Kevin B.,&Rao, Li-Lin.(2021).Beyond Smiles: Static Expressions in Maxillary Protrusion and Associated Positivity.FRONTIERS IN PSYCHOLOGY,12,9.
MLA Chen, Lijing,et al."Beyond Smiles: Static Expressions in Maxillary Protrusion and Associated Positivity".FRONTIERS IN PSYCHOLOGY 12(2021):9.
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