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Weirich M, Simpson AP, Knutti N. Effects of testosterone on speech production and perception: Linking hormone levels in males to vocal cues and female voice attractiveness ratings. Physiol Behav 2024; 283:114615. [PMID: 38880296 DOI: 10.1016/j.physbeh.2024.114615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/10/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
This study sets out to investigate the potential effect of males' testosterone level on speech production and speech perception. Regarding speech production, we investigate intra- and inter-individual variation in mean fundamental frequency (fo) and formant frequencies and highlight the potential interacting effect of another hormone, i.e. cortisol. In addition, we investigate the influence of different speech materials on the relationship between testosterone and speech production. Regarding speech perception, we investigate the potential effect of individual differences in males' testosterone level on ratings of attractiveness of female voices. In the production study, data is gathered from 30 healthy adult males ranging from 19 to 27 years (mean age: 22.4, SD: 2.2) who recorded their voices and provided saliva samples at 9 am, 12 noon and 3 pm on a single day. Speech material consists of sustained vowels, counting, read speech and a free description of pictures. Biological measures comprise speakers' height, grip strength, and hormone levels (testosterone and cortisol). In the perception study, participants were asked to rate the attractiveness of female voice stimuli (sentence stimulus, same-speaker pairs) that were manipulated in three steps regarding mean fo and formant frequencies. Regarding speech production, our results show that testosterone affected mean fo (but not formants) both within and between speakers. This relationship was weakened in speakers with high cortisol levels and depended on the speech material. Regarding speech perception, we found female stimuli with higher mean fo and formants to be rated as sounding more attractive than stimuli with lower mean fo and formants. Moreover, listeners with low testosterone showed an increased sensitivity to vocal cues of female attractiveness. While our results of the production study support earlier findings of a relationship between testosterone and mean fo in males (which is mediated by cortisol), they also highlight the relevance of the speech material: The effect of testosterone was strongest in sustained vowels, potentially due to a strengthened effect of hormones on physiologically strongly influenced tasks such as sustained vowels in contrast to more free speech tasks such as a picture description. The perception study is the first to show an effect of males' testosterone level on female attractiveness ratings using voice stimuli.
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Affiliation(s)
- Melanie Weirich
- Institute for German Linguistics, Friedrich Schiller University, Jena, Germany.
| | - Adrian P Simpson
- Institute for German Linguistics, Friedrich Schiller University, Jena, Germany
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O'Rourke SP, Stack TJ, Miller JR, Miller MQ. Changes in Perceived Emotions in Facial Paralysis Patients After Depressor Anguli Oris Excision. Laryngoscope 2024; 134:4028-4035. [PMID: 38706403 DOI: 10.1002/lary.31471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/23/2024] [Accepted: 04/10/2024] [Indexed: 05/07/2024]
Abstract
OBJECTIVES Depressor anguli oris (DAO) excision can improve clinician-graded, objective, and patient-reported smile outcomes in patients with nonflaccid facial paralysis (NFFP). However, no prior research has studied changes in perceived emotions after surgery. This study quantifies changes in perceived emotions with smiling after DAO excision in the largest case series presented to date. METHODS Prospectively collected data from patients with NFFP who underwent DAO excision at a tertiary care facial nerve center were reviewed. Patient-reported, clinician-graded, and objective smile metrics were compared before and after surgery. Videos of faces at rest and while smiling were analyzed by artificial intelligence-derived facial expression analysis software to quantify perceived emotions. RESULTS Sixty-eight patients underwent isolated DAO excision between August 2021 and August 2023. Patients conveyed significantly more perceived happiness with smile and at rest after surgery (p < 0.001 and p = 0.012, respectively). DAO excision improved oral commissure excursion (p < 0.001), dental show (p < 0.001), and smile angle (p < 0.001) symmetry. Patients reported significant improvements in smiling and social function after surgery. CONCLUSIONS This study demonstrates DAO excision increases perceived happiness conveyed by patients with NFFP while smiling and at rest. It confirms improved objective, clinician-graded, and patient-reported smile outcomes after surgery. LEVEL OF EVIDENCE 4 Laryngoscope, 134:4028-4035, 2024.
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Affiliation(s)
- Samuel P O'Rourke
- University of North Carolina School of Medicine, Chapel Hill, North Carolina, U.S.A
| | - Taylor J Stack
- University of North Carolina School of Medicine, Chapel Hill, North Carolina, U.S.A
| | - Jonas R Miller
- Division of Facial Plastic and Reconstructive Surgery, University of North Carolina Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, U.S.A
| | - Matthew Q Miller
- Division of Facial Plastic and Reconstructive Surgery, University of North Carolina Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, U.S.A
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Karakashevska E, Derpsch Y, Jones A, Makin ADJ. The extrastriate symmetry response is robust to alcohol intoxication. Psychophysiology 2024; 61:e14593. [PMID: 38643374 DOI: 10.1111/psyp.14593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/08/2024] [Accepted: 04/03/2024] [Indexed: 04/22/2024]
Abstract
Visual symmetry activates a network of regions in the extrastriate cortex and generates an event-related potential (ERP) called the sustained posterior negativity (SPN). Previous work has found that the SPN is robust to experimental manipulations of task, spatial attention, and memory load. In the current study, we investigated whether the SPN is also robust to alcohol-induced changes in mental state. A pilot experiment (N = 13) found that alcohol unexpectedly increased SPN amplitude. We followed this unexpected result with two new experiments on separate groups, using an alcohol challenge paradigm. One group completed an Oddball discrimination task (N = 26). Another group completed a Regularity discrimination task (N = 26). In both groups, participants consumed a medium dose of alcohol (0.65 g/kg body weight) and a placebo drink, in separate sessions. Alcohol reduced SPN amplitude in the Oddball task (contrary to the pilot results) but had no effect on SPN amplitude in the Regularity task. In contrast, the N1 wave was consistently dampened by alcohol in all experiments. Exploratory analysis indicated that the inconsistent effect of alcohol on SPN amplitude may be partly explained by individual differences in alcohol use. Alcohol reduced the SPN in light drinkers and increased it in heavier drinkers. Despite remaining questions, the results highlight the automaticity of symmetry processing. Symmetry still produces a large SPN response, even when participants are intoxicated, and even when symmetry is not task relevant.
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Affiliation(s)
- Elena Karakashevska
- Department of Psychology, Population Health Institute, University of Liverpool, Liverpool, UK
| | - Yiovanna Derpsch
- Faculty of Social Sciences, School of Psychology, University of East Anglia, Norwich, UK
| | - Andrew Jones
- Faculty of Health, School of Psychology, Liverpool John Moores, Liverpool, UK
| | - Alexis D J Makin
- Department of Psychology, Population Health Institute, University of Liverpool, Liverpool, UK
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Rahman E, Esfahlani SS, Rao P, Webb WR. Equation for Attractiveness: Integrating Multidimensional Factors Through Computational Neuroaesthetics. Aesthetic Plast Surg 2024:10.1007/s00266-024-04304-7. [PMID: 39187593 DOI: 10.1007/s00266-024-04304-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Accepted: 08/01/2024] [Indexed: 08/28/2024]
Abstract
BACKGROUND Understanding the multifaceted nature of attractiveness (A), which encompasses physical beauty (PB), genuineness (GEN), self-confidence (SC), and prior experience (RE), is crucial for various domains, including psychology and clinical aesthetics. Previous studies have often isolated specific elements, failing to capture their intricate interplay. This study aims to develop a comprehensive equation for attractiveness using computational neuroaesthetics. METHOD The study began with a pilot study involving 250 participants (50 experts and 200 laypersons) who prerated 500 facial images on a Likert scale for traits such as physical beauty, genuineness, self-confidence, and perceived prior experience. Following the pilot, the main study recruited 11,780 participants through diverse media channels to rate a new set of 1,000 facial images. Advanced computational techniques, including multiple linear regression and Bayesian hierarchical modelling, were employed to analyse the data and formulate an attractiveness equation. RESULTS The analysis identified genuineness as the most significant factor, followed by physical beauty, self-confidence, and prior experience. The proposed equation for attractiveness, refined through Bayesian modelling, is:A = β 0 + ( β 1 · PB + β 2 · GEN + β 3 · SC + β 4 · PE ) + ϵ A = 1.82 + ( 0.34 · PB + 0.44 · GEN + 0.26 · SC + 0.16 · PE ) + ϵ (β0 is the intercept; β1, β2, β3, β4 are the coefficients for each factor; and ϵ is the error term) CONCLUSION: The findings underscore the paramount importance of psychological traits in attractiveness assessments, suggesting a shift from purely physical enhancements to holistic interventions in clinical settings. This model provides a robust framework for understanding attractiveness and has potential applications in psychology, marketing, and AI. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Eqram Rahman
- Research and Innovation Hub, Innovation Aesthetics, London, WC2H 9JQ, UK.
| | - Shabnam Sadeghi Esfahlani
- Medical Technology Research Centre (MTRC), School of Engineering and the Built Environment, Anglia Ruskin University, Chelmsford, UK
| | - Parinitha Rao
- The Skin Address, Aesthetic Dermatology Practice, Bengaluru, India
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Watkins CD. Mate assessment based on physical characteristics: a review and reflection. Biol Rev Camb Philos Soc 2024. [PMID: 39175167 DOI: 10.1111/brv.13131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 08/07/2024] [Accepted: 08/08/2024] [Indexed: 08/24/2024]
Abstract
Mate choice, and sex differences in romantic behaviours, represented one of the first major applications of evolutionary biology to human behaviour. This paper reviews Darwinian approaches to heterosexual mate assessment based on physical characteristics, placing the literature in its historical context (1871-1979), before turning (predominantly) to psychological research on attractiveness judgements based on physical characteristics. Attractiveness is consistently inferred across multiple modalities, with biological theories explaining why we differentiate certain individuals, on average, from others. Simultaneously, it is a judgement that varies systematically in light of our own traits, environment, and experiences. Over 30 years of research has generated robust effects alongside reasons to be humble in our lack of understanding of the precise physiological mechanisms involved in mate assessment. This review concludes with three questions to focus attention in further research, and proposes that our romantic preferences still provide a critical window into the evolution of human sexuality.
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Affiliation(s)
- Christopher D Watkins
- Division of Psychology and Forensic Sciences, School of Applied Sciences, Abertay University, Kydd Building, Bell Street, Dundee, DD11HG, UK
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Singer R, Papadopoulos T. There Is no Universal Standard of Beauty. Aesthetic Plast Surg 2024:10.1007/s00266-024-04266-w. [PMID: 39103640 DOI: 10.1007/s00266-024-04266-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/15/2024] [Indexed: 08/07/2024]
Abstract
This article discusses the various factors that contribute to facial beauty and the different contexts in which they are significant. The authors examine the roles of the golden ratio, ideal proportions, symmetry, and specific facial features in what constitutes an attractive face. They also investigate the influence of cultural and evolutionary perspectives on facial beauty and the impact of social media on our perception of beauty. The article provides a comprehensive overview of the topic and emphasises the significance of facial beauty and its impact on our lives. The authors acknowledge that the concept of beauty is difficult to define with absolute precision, and that the objective-subjective argument regarding facial beauty remains unsolved. However, they argue that physical attributes undoubtedly influence perceptions of attractiveness, but beauty extends beyond surface-level features. They also suggest that embracing diversity in beauty standards fosters a more inclusive society that celebrates the unique qualities of every person.Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Robert Singer
- Clinical Professor of Plastic Surgery (Voluntary), The University of California, San Diego (UCSD), San Diego, CA, USA
| | - Tim Papadopoulos
- Adjunct Clinical Associate Professor of Plastic Surgery, University of Notre Dame, Sydney, Australia.
- Head of the Department of Plastic, Reconstructive, and Aesthetic Surgery, Westmead Private Hospital, Westmead, NSW, 2145, Australia.
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Huang X, Qin D, Ngan P, Cao L, Hua F, He H. White spot lesion-related perception of aesthetics and treatment satisfaction among orthodontic patients, orthodontists and other dental specialists. Orthod Craniofac Res 2024; 27:626-634. [PMID: 38466047 DOI: 10.1111/ocr.12776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
OBJECTIVE To investigate the impact of various degrees of white spot lesions (WSLs) of maxillary anterior teeth on the aesthetic perception and treatment satisfaction among orthodontic patients, orthodontists and other dental specialists and to evaluate the differences among the three groups. METHODS A total of 45 orthodontic patients (OP), 45 orthodontists (OR) and 45 other dental specialists (OS) were recruited. Subjective evaluations of perceived aesthetics and treatment satisfaction were performed towards eight digitally generated photographs of maxillary anterior teeth with incremental degrees of WSLs using a numerical visual analogue scale (VAS) from 0 to 100. Data were collected and analysed with descriptive statistics, repeated one-way analysis of variance and multivariable generalized estimating equations. RESULTS A total of 135 valid questionnaires were collected. Regarding aesthetic scores for WSLs, OP gave more positive scores than OR and OS (p < .05) towards excessive white spot formation without colouration and were more tolerant than OR (p < .05) towards excessive white spot formation with slight colouration. The level of treatment satisfaction for slight to severe WSLs without cavitation was higher in OP than OR. Patients with higher education levels had more negative scores for aesthetic perception and treatment satisfaction (p < .05). Patients who brushed teeth more frequently scored lower in treatment satisfaction (p < .05). CONCLUSIONS Orthodontists were the most critical when evaluating aesthetics and treatment satisfaction for slight to severe WSLs without cavitation. For orthodontic patients, better oral hygiene habits and higher education levels were associated with more critical attitudes towards WSLs.
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Affiliation(s)
- Xinliang Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Danchen Qin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Peter Ngan
- Department of Orthodontics, School of Dentistry, West Virginia University, Morgantown, West Virginia, USA
| | - Lingyun Cao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fang Hua
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Center for Orthodontics and Pediatric Dentistry at Optics Valley Branch, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Center for Evidence-Based Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Hong He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, China
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Jiang L, Liu C, Gao C, Ding J. Selective interference of liking and beauty judgements on affective working memory and visual working memory. Q J Exp Psychol (Hove) 2024; 77:1770-1779. [PMID: 38073028 DOI: 10.1177/17470218231221719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Aesthetic processing has profound implications for everyday life. Although liking and beauty judgements are outcomes of aesthetic processing and derive from a common hedonic value, there may be some differences in how they engage working memory. This study used maintenance and aesthetic judgement tasks to examine whether liking and beauty judgements make different demands on domain-specific working memory resources. Sixty participants (30 males) were instructed to rate picture for liking or beauty while maintaining the subjective affect or brightness of the presented pictures. Results indicated that liking judgements selectively impaired participants' performance in the affect maintenance task, and beauty judgements selectively impaired their performance in the brightness maintenance task. In addition, maintaining affect and brightness feelings in the mind increased image ratings on beauty but not on liking. Our findings provide evidence that liking judgements draw more on affective working memory resources than beauty judgements, and beauty judgements draw more on visual working memory resources than liking judgements.
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Affiliation(s)
- Luyao Jiang
- School of Psychology, Nanjing Normal University, Nanjing, China
| | - Chang Liu
- School of Psychology, Nanjing Normal University, Nanjing, China
| | - Cheng Gao
- School of Psychology, Nanjing Normal University, Nanjing, China
| | - Jun Ding
- The Academy of Education on Arts, Hangzhou Normal University, Hangzhou, China
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Zeng R, Glaue E, Moellhoff N, Alfertshofer M, Cotofana S, Knoedler S, Knoedler L, Wiggenhauser S, Giunta R, Frank K. Eye-Tracking Insights into the Perception of Buttocks. Aesthetic Plast Surg 2024:10.1007/s00266-024-04257-x. [PMID: 39075324 DOI: 10.1007/s00266-024-04257-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024]
Abstract
BACKGROUND Aesthetic enhancements to the buttock region have grown in demand due to media influence and evolving beauty standards. Using eye-tracking technology, we sought to uncover subconscious visual preferences regarding the buttock aesthetic. The objective of this investigation was to assess visual gaze patterns in assessing female buttocks among Caucasian and Asians through eye-tracking technology. MATERIALS AND METHODS 67 participants viewed photographs of buttocks from various angles, and eye movements were analyzed using the Tobii Pro Nano eye-tracker. RESULTS Males fixated on the intergluteal cleft for 0.96 ± 1.1 s and the thigh gap for 0.07 ± 0.2 s; while, females fixated for 0.81 ± 0.9 s and 0.06 ± 0.2 s on the same regions, respectively. Significant gender differences were observed in the intergluteal cleft (p = 0.002) and upper lateral buttock (p < 0.001). CONCLUSION This study offers new insights into the observation of buttocks. The consistent attention toward the intergluteal cleft across demographics could be of potential significance in the aesthetic perception of buttocks. However, diverse gaze patterns also underscore the multifaceted nature of human attraction. These findings hold implications for plastic surgery, aesthetic medicine, and the sociocultural understanding of beauty. A deeper dive into aesthetic preferences is pivotal for a holistic understanding of human perceptions of attractive buttocks. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to Table of Contents or the online instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Rui Zeng
- Division for Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Emily Glaue
- Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Nicholas Moellhoff
- Division for Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Michael Alfertshofer
- Division for Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Sebastian Cotofana
- Department of Dermatology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Samuel Knoedler
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Leonard Knoedler
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Severin Wiggenhauser
- Division for Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Riccardo Giunta
- Division for Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Konstantin Frank
- Ocean Clinic Marbella, Avenida Ramon y Cáyal 7, 29610, Marbella, Spain.
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany.
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Fink B, Campiche R, Shackelford TK, Voegeli R. Age-dependent changes in skin features and perceived facial appearance in women of five ethnic groups. Int J Cosmet Sci 2024. [PMID: 39051099 DOI: 10.1111/ics.13003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024]
Abstract
OBJECTIVE Research documents effects of skin features on assessments of age, health and attractiveness of female faces. Ethnic variation also has been reported for the impact of age-related changes in skin features on face assessments. Here, we investigate women's self-ratings across age cohorts and ethnic groups and discrepancies with (non-expert) assessor ratings of facial appearance together with age-dependent changes in skin features. METHODS Faces of women 20-65 years from five ethnic groups (each n = 36) were imaged. Participants provided self-ratings of age, health and attractiveness, and were judged on these attributes by members of the same ethnic group (each n = 120). Digital image analysis was used to quantify skin gloss, tone evenness, wrinkling and sagging. Age-dependent changes in ratings and skin features within and between ethnic groups were assessed by comparing information from 10-year cohorts. We also tested whether menopausal status could be predicted by self-ratings, assessor ratings and image-based skin features. RESULTS Women of all ethnic groups judged themselves younger and higher in attractiveness and health compared to third-party assessors, with the largest discrepancies for age in French women and for attractiveness and health in South African women. In Indian and South African women, specular gloss and skin tone evenness were lower compared to other participants, and sagging was higher in Indian, Japanese and South African women compared to Chinese and French women. Women's menopausal status could be predicted from assessor ratings and image-based skin features but not from self-ratings. CONCLUSION There are differences between women's self-ratings and assessor ratings of facial appearance. These discrepancies vary with female age and ethnicity. Age and ethnicity effects also are evident in age-dependent changes in skin features within and across ethnic groups, which together with assessor (but not self-) ratings of facial appearance predict menopausal status.
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Affiliation(s)
- Bernhard Fink
- Biosocial Science Information, Biedermannsdorf, Austria
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
- Human Evolution and Archaeological Sciences (HEAS), University of Vienna, Vienna, Austria
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Schmuck J, Voltz E, Gibbons H. You're Beautiful When You Smile: Event-Related Brain Potential (ERP) Evidence of Early Opposite-Gender Bias in Happy Faces. Brain Sci 2024; 14:739. [PMID: 39199434 PMCID: PMC11353154 DOI: 10.3390/brainsci14080739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/18/2024] [Accepted: 07/22/2024] [Indexed: 09/01/2024] Open
Abstract
Studies of social cognition have shown gender differences regarding human face processing. One interesting finding is the enhanced processing of opposite-gender faces at different time stages, as revealed by event-related brain potentials. Crucially, from an evolutionary perspective, such a bias might interact with the emotional expression of the face. To investigate this, 100 participants (50 female, 50 male) completed an expression-detection task while their EEG was recorded. In three blocks, fearful, happy and neutral faces (female and male) were randomly presented, with participants instructed to respond to only one predefined target expression level in each block. Using linear mixed models, we observed both faster reaction times as well as larger P1 and late positive potential (LPP) amplitudes for women compared to men, supporting a generally greater female interest in faces. Highly interestingly, the analysis revealed an opposite-gender bias at P1 for happy target faces. This suggests that participants' attentional templates may include more opposite-gender facial features when selectively attending to happy faces. While N170 was influenced by neither the face nor the participant gender, LPP was modulated by the face gender and specific combinations of the target status, face gender and expression, which is interpreted in the context of gender-emotion stereotypes. Future research should further investigate this expression and attention dependency of early opposite-gender biases.
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Affiliation(s)
| | | | - Henning Gibbons
- Department of Psychology, University of Bonn, Kaiser-Karl-Ring 9, 53111 Bonn, Germany; (J.S.); (E.V.)
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Atrooz OM, Reihani N, Mozafari MR, Salawi A, Taghavi E. Enhancing hair regeneration: Recent progress in tailoring nanostructured lipid carriers through surface modification strategies. ADMET AND DMPK 2024; 12:431-462. [PMID: 39091900 PMCID: PMC11289513 DOI: 10.5599/admet.2376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/17/2024] [Indexed: 08/04/2024] Open
Abstract
Background and purpose Hair loss is a prevalent problem affecting millions of people worldwide, necessitating innovative and efficient regrowth approaches. Nanostructured lipid carriers (NLCs) have become a hopeful option for transporting bioactive substances to hair follicles because of their compatibility with the body and capability to improve drug absorption. Review approach Recently, surface modification techniques have been used to enhance hair regeneration by improving the customization of NLCs. These techniques involve applying polymers, incorporating targeting molecules, and modifying the surface charge. Key results The conversation focuses on how these techniques enhance stability, compatibility with the body, and precise delivery to hair follicles within NLCs. Moreover, it explains how surface-modified NLCs can improve the bioavailability of hair growth-promoting agents like minoxidil and finasteride. Furthermore, information on how surface-modified NLCs interact with hair follicles is given, uncovering their possible uses in treating hair loss conditions. Conclusion This review discusses the potential of altering the surface of NLCs to customize them for enhanced hair growth. It offers important information for upcoming studies on hair growth.
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Affiliation(s)
- Omar M. Atrooz
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan
- Department of Biological Sciences, Mutah University, Mutah, Jordan
| | - Nasim Reihani
- Australasian Nanoscience and Nanotechnology Initiative (ANNI), Monash University LPO, Clayton, Victoria 3800, Australia
| | - M. R. Mozafari
- Australasian Nanoscience and Nanotechnology Initiative (ANNI), Monash University LPO, Clayton, Victoria 3800, Australia
| | - Ahmad Salawi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Elham Taghavi
- Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
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Allan YTH, Richard KFN, Nur Dianah F, Prathishaa J, Syafiqa Nur 'Ukail S, Ernieda Md H, Muhammad Farhan AR, Ungku Mohd Zaman MS, Adibah HI. Medical aesthetic awareness among public in Malaysia and the factors that may influence it: A cross-sectional study. MALAYSIAN FAMILY PHYSICIAN : THE OFFICIAL JOURNAL OF THE ACADEMY OF FAMILY PHYSICIANS OF MALAYSIA 2024; 19:37. [PMID: 39210975 PMCID: PMC11361762 DOI: 10.51866/oa.458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Introduction Medical aesthetic practice is growing rapidly in Malaysia due to rising market demand, yet public understanding of these practices remains limited. This study evaluated the awareness and attitudes towards medical aesthetics among Malaysians. Methods A cross-sectional survey was conducted among individuals aged > 18 years old in Malaysia from December 2021 to May 2022. The survey was distributed both online and in public settings. The survey comprised of respondents' sociodemographic, perception of physical attractiveness, knowledge and attitude towards medical aesthetic practices. The factors influencing respondents' attitudes towards medical aesthetic practices in the country were analysed using binary logistic regression, with the significance level set at P<0.05. Results A total of 382 respondents participated in this study with average age of 30.81 (±9.38) years, ranging from 18 to 68 years. The majority were women (77.5%), Malay (53.7%) and Muslim (57.1%). Although most respondents had no prior experience in medical aesthetic treatment (68.1%), 76.2% respondents demonstrated good knowledge and 70.2% had positive attitude towards these services. Additionally, 53.9% of the respondents highly valued the importance of physical attractiveness. The Buddhists and Hindus exhibited more positive attitude than the Muslims. Conversely, those who placed higher importance on physical attractiveness were 0.5 times less likely to develop a positive attitude towards medical aesthetic services. Conclusion In conclusion, despite limited experience in medical aesthetic treatments and practice, most Malaysians possess good knowledge and positive attitudes towards medical aesthetics, indicating a growing interest and potential willingness to consider these services for enhancing their appearance.
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Affiliation(s)
- Yong Teck Hoang Allan
- MBBS, Post Grad DipDerm, AAAM, ABAARM., W Clinic, Ground floor of No.39, Wisma CUIR, Jalan Maarof, Bangsar, Wilayah Persekutuan, Kuala Lumpur, Malaysia
| | - Kwong Fai Ng Richard
- MBBS, MBA, MMIM, Clinic RX, Wisma TTGU, Jalan Maarof, Bangsar, Wilayah Persekutuan, Kuala Lumpur, Malaysia
| | - Firuz Nur Dianah
- MBBCh, Klinik Fiana Antara Gapi Dr Sofian & Rakan-rakan, No 3A-G, Jalan Gapimas 1, Laman Gapimas, Serendah, Selangor, Malaysia
| | - Jagathisan Prathishaa
- MD, Faculty of Medicine and Health Sciences, University Malaysia Sarawak, Jalan Datuk Mohammad Musa, Kota Samarahan, Sarawak, Malaysia
| | | | - Hatah Ernieda Md
- BPharm(Hons), MPharm(Clin), PhD, Faculty of Pharmacy, University Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia.
| | - Abdul Rashid Muhammad Farhan
- Bsc, USMARI Research and Innovation Centre, S68-1, Red Carpet Avenue, Encorp Strand Mall, Kota Damansara PJU 5/22, Petaling Jaya, Selangor, Malaysia
| | - Mohd Shahrin Ungku Mohd Zaman
- MD, USMARI Research and Innovation Centre, S68-1, Red Carpet Avenue, Encorp Strand Mall, Kota Damansara PJU 5/22,Petaling Jaya, Selangor, Malaysia
| | - Hanim Ismail Adibah
- MD, M.Med (Fam. Med), Family Medicine Department, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM). Serdang, Selangor
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Sheridan DJ, Rapp JT, Edgemon AK, Pinkston JW. Assessing stimulus preference using response force in a conjugate preparation: A replication and extension. J Exp Anal Behav 2024; 122:25-41. [PMID: 38837371 DOI: 10.1002/jeab.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/17/2024] [Indexed: 06/07/2024]
Abstract
The current study examined 98 participants' preferences for five pictorial stimuli. The researchers used a verbal multiple-stimulus-without-replacement (VMSWO) preference assessment with each participant to identify high-preference and low-preference pictorial stimuli. Next, participants viewed each pictorial stimulus in a randomized order on a computer while using a hand dynamometer that measured the amount of force they exerted to increase or maintain the visual clarity of each image. The results indicate that over 75% of participants' force response ranks corresponded with participants' VMSWO high-preference stimuli, VMSWO low-preference stimuli, or both. The results of the current study provide further evidence for the use of conjugate schedules in the assessment of stimulus preference with potential for use as a reinforcer assessment. Implications along with directions for future research and limitations of the findings are discussed.
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Affiliation(s)
- Daniel J Sheridan
- Department of Psychological Sciences, Auburn University, Auburn, AL, USA
| | - John T Rapp
- Department of Psychological Sciences, Auburn University, Auburn, AL, USA
| | - Anna Kate Edgemon
- Department of Psychological Sciences, Auburn University, Auburn, AL, USA
| | - Jonathan W Pinkston
- Department of Psychology, Western New England University, Springfield, MA, USA
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15
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Wang W, Li Z, Lin X, Sun YHP, Wang Z, Wang Y. Influence of protective clothing and masks on facial trustworthiness in an investment game: insights from a Chinese population study. Cogn Res Princ Implic 2024; 9:36. [PMID: 38856867 PMCID: PMC11164842 DOI: 10.1186/s41235-024-00565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 06/04/2024] [Indexed: 06/11/2024] Open
Abstract
Facial features are important sources of information about perceived trustworthiness. Masks and protective clothing diminish the visibility of facial cues by either partially concealing the mouth and nose or covering the entire face. During the pandemic, the use of personal protective equipment affected and redefined who trusts whom in society. This study used the classical investment game of interpersonal trust with Chinese participants to explore the impact of occlusion on interpersonal trust. Faces with moderate initial trustworthiness were occluded by a mask or protective clothing in Experiment 1 and were digitally occluded by a square in Experiment 2, and faces with three levels of initial trustworthiness were occluded by a mask in Experiment 3. Results showed that both undergraduates (Experiment 1a) and non-student adults (Experiment 1b) perceived the faces with protective clothing as more trustworthy than faces wearing standard masks and faces not wearing masks. Faces with the top halves showing were perceived as trustworthy as full faces, while faces with the bottom halves showing were perceived as less trustworthy. The effect of masks is weak and complex. Masks reduced participants' trust in faces with high initial trustworthiness, had no effect on faces with low and moderate initial trustworthiness, and only slightly increased the trust of undergraduates in faces with moderate initial trustworthiness. Our findings indicate that the lack of information caused by occlusion and the social significance associated with occlusion collectively affect people's trust behavior in Chinese society. We believe the findings of this study will be useful in elucidating the effects of personal protective equipment usage on perceptions of trustworthiness.
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Affiliation(s)
- Weiping Wang
- Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Chaoyang District, , Beijing, 100101, China.
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
| | - Zhifan Li
- Department of Psychology, Zhejiang Sci-Tech University, Zhejiang, China
| | - Xin Lin
- Department of Psychology, Zhejiang Sci-Tech University, Zhejiang, China
| | - Yu-Hao P Sun
- Department of Psychology, Zhejiang Sci-Tech University, Zhejiang, China
| | - Zhe Wang
- Department of Psychology, Zhejiang Sci-Tech University, Zhejiang, China
| | - Yong Wang
- Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Chaoyang District, , Beijing, 100101, China.
- The Research Center for Psychological Education, University of International Relations, Beijing, China.
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16
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Maio KA, Moubayidin L. 'Organ'ising Floral Organ Development. PLANTS (BASEL, SWITZERLAND) 2024; 13:1595. [PMID: 38931027 PMCID: PMC11207604 DOI: 10.3390/plants13121595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024]
Abstract
Flowers are plant structures characteristic of the phylum Angiosperms composed of organs thought to have emerged from homologous structures to leaves in order to specialize in a distinctive function: reproduction. Symmetric shapes, colours, and scents all play important functional roles in flower biology. The evolution of flower symmetry and the morphology of individual flower parts (sepals, petals, stamens, and carpels) has significantly contributed to the diversity of reproductive strategies across flowering plant species. This diversity facilitates attractiveness for pollination, protection of gametes, efficient fertilization, and seed production. Symmetry, the establishment of body axes, and fate determination are tightly linked. The complex genetic networks underlying the establishment of organ, tissue, and cellular identity, as well as the growth regulators acting across the body axes, are steadily being elucidated in the field. In this review, we summarise the wealth of research already at our fingertips to begin weaving together how separate processes involved in specifying organ identity within the flower may interact, providing a functional perspective on how identity determination and axial regulation may be coordinated to inform symmetrical floral organ structures.
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Affiliation(s)
| | - Laila Moubayidin
- Department of Cell and Developmental Biology, John Innes Centre, Colney Lane, Norwich NR4 7UH, UK;
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17
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Obwegeser D, Timofte R, Mayer C, Bornstein MM, Schätzle MA, Patcas R. Scoring facial attractiveness with deep convolutional neural networks: How training on standardized images reduces the bias of facial expressions. Orthod Craniofac Res 2024. [PMID: 38825845 DOI: 10.1111/ocr.12820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 06/04/2024]
Abstract
OBJECTIVE In many medical disciplines, facial attractiveness is part of the diagnosis, yet its scoring might be confounded by facial expressions. The intent was to apply deep convolutional neural networks (CNN) to identify how facial expressions affect facial attractiveness and to explore whether a dedicated training of the CNN is able to reduce the bias of facial expressions. MATERIALS AND METHODS Frontal facial images (n = 840) of 40 female participants (mean age 24.5 years) were taken adapting a neutral facial expression and the six universal facial expressions. Facial attractiveness was computed by means of a face detector, deep convolutional neural networks, standard support vector regression for facial beauty, visual regularized collaborative filtering and a regression technique for handling visual queries without rating history. CNN was first trained on random facial photographs from a dating website and then further trained on the Chicago Face Database (CFD) to increase its suitability to medical conditions. Both algorithms scored every image for attractiveness. RESULTS Facial expressions affect facial attractiveness scores significantly. Scores from CNN additionally trained on CFD had less variability between the expressions (range 54.3-60.9 compared to range: 32.6-49.5) and less variance within the scores (P ≤ .05), but also caused a shift in the ranking of the expressions' facial attractiveness. CONCLUSION Facial expressions confound attractiveness scores. Training on norming images generated scores less susceptible to distortion, but more difficult to interpret. Scoring facial attractiveness based on CNN seems promising, but AI solutions must be developed on CNN trained to recognize facial expressions as distractors.
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Affiliation(s)
- Dorothea Obwegeser
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Radu Timofte
- Computer Vision Laboratory, Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, Switzerland
- CAIDAS and Institute of Computer Science, Faculty of Mathematics and Computer Science, University of Wurzburg, Wurzburg, Germany
| | - Christoph Mayer
- Computer Vision Laboratory, Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, Switzerland
| | - Michael M Bornstein
- Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Marc A Schätzle
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Raphael Patcas
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Alcaraz Ros GDD, Eduardo Bravo Vallejo G, Peloso RM, Martins Gambardela-Tkacz C, Cotrin P, Maria Salvatore de Freitas K, Roberto de Freitas M. Smile attractiveness in patients treated with or without 4 premolar extractions: A 36-year follow-up. Am J Orthod Dentofacial Orthop 2024; 165:618-627. [PMID: 38456851 DOI: 10.1016/j.ajodo.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 12/01/2023] [Accepted: 12/01/2023] [Indexed: 03/09/2024]
Abstract
INTRODUCTION This study aimed to assess the smile attractiveness in patients treated with or without 4 premolar extractions at a 36-year follow-up. METHODS The sample comprised 52 patients with Class I and II malocclusion divided into 2 groups. Group 1 consisted of 15 patients treated without extractions (10 females and 5 males), with a mean pretreatment, posttreatment, and long-term posttreatment (T3) age of 13.2, 15.1, and 49.8 years, respectively. The mean treatment time was 1.9 years, and the mean long-term follow-up period was 34.7 years. Group 2 consisted of 37 patients (25 females and 12 males) treated with 4 premolar extractions, with a mean pretreatment, posttreatment, and long-term posttreatment age of 13.3, 15.7, and 53.6 years, respectively. The mean treatment time was 2.3 years, and the mean long-term follow-up period was 37.9 years. The mean retention time was 2 years for both groups. Frontal smiling photographs were obtained at long-term follow-up. Smile attractiveness was evaluated in an online questionnaire in which the evaluator could rate the smiling photographs with a 10-point scale. The randomly selected evaluator sample consisted of 62 laypeople, 33 dentists, and 89 orthodontists. Independent t tests, 1-way analysis of variance, and Tukey tests were used for intergroup comparisons at P <0.05. RESULTS The smile attractiveness on the long term was similar in the groups treated with 4 premolar extractions (4.70 ± 1.35) or without extractions (4.51 ± 1.46). Women and orthodontists were more critical in assessing smile attractiveness than men, dentists, and laypeople. CONCLUSIONS After long-term posttreatment, the smile attractiveness was similar in patients treated with 4 premolar extractions or without extractions.
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Affiliation(s)
| | | | - Renan Morais Peloso
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Paula Cotrin
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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Gulsever S, Suzen M, Tuncer MK, Uckan S. The Influence of the Hourglass Form of the Neck on Perceptions of Frontal Esthetics. J Craniofac Surg 2024; 35:1030-1034. [PMID: 37973057 DOI: 10.1097/scs.0000000000009868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 09/14/2023] [Indexed: 11/19/2023] Open
Abstract
The purpose of this investigation was to evaluate the effect of the neck concavity angle (NCA) on different occupational groups' perceptions of frontal esthetics. An online survey was developed using Google Forms and sent to the observers through WhatsApp. Male and female frontal silhouettes were created, and NCAs that comprise the hourglass form of the neck were altered in 5 degrees increments from 120 degrees to 170 degrees. Observers were asked to score the images using 0 to 10 numerical rating scale. In all, 279 observers (97 orthodontists, 92 oral-maxillofacial surgeons, and 90 laypeople) participated in this study. For the male and female silhouettes, an NCA of 145 degrees was perceived as the most esthetic, while an NCA of 170 degrees was perceived as the least esthetic by all groups. Generally, an NCA greater than 145 degrees was perceived as less esthetic than an NCA smaller than 145 degrees. There was no significant difference between the scores of the observer groups for the silhouettes except for the female silhouettes with an NCA of 125 degrees or 150 degrees and the male silhouettes with an NCA of 145 degrees or 150 degrees. For both the female and male silhouettes, the further the NCA increased or decreased from 145 degrees, the less esthetic it was perceived to be. A significant increase in NCA was perceived as less esthetic than a significant decrease. The range of NCAs perceived as esthetic varied between 120 degrees and 145 degrees for women and between 130 degrees and 150 degrees for men. These ranges of variability of NCA may provide clinicians with useful information for orthognathic surgical planning.
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Affiliation(s)
- Serap Gulsever
- Department of Oral and Maxillofacial Surgery, School of Dentistry, İstanbul Medipol University, İstanbul, Turkey
| | - Muazzez Suzen
- Department of Oral and Maxillofacial Surgery, School of Dentistry, İstanbul Medipol University, İstanbul, Turkey
| | | | - Sina Uckan
- Department of Oral and Maxillofacial Surgery, School of Dentistry, İstanbul Medipol University, İstanbul, Turkey
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20
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Lee S, Jin G, Park JH, Jung HI, Kim JE. Evaluation metric of smile classification by peri-oral tissue segmentation for the automation of digital smile design. J Dent 2024; 145:104871. [PMID: 38309570 DOI: 10.1016/j.jdent.2024.104871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/05/2024] Open
Abstract
OBJECTIVES This study aimed to develop and validate evaluation metric for an automated smile classification model termed the "smile index." This innovative model uses computational methods to numerically classify and analyze conventional smile types. METHODS The datasets used in this study consisted of 300 images to verify, 150 images to validate, and 9 images to test the evaluation metric. Images were annotated using Labelme. Computational techniques were used to calculate smile index values for the study datasets, and the resulting values were evaluated in three stages. RESULTS The smile index successfully classified smile types using cutoff values of 0.0285 and 0.193. High accuracy (0.933) was achieved, along with an F1 score greater than 0.09. The smile index successfully reclassified smiles into six types (low, low-to-medium, medium, medium-to-high, high, and extremely high smiles), thereby providing a clear distinction among different smile characteristics. CONCLUSION The smile index is a novel dimensionless parameter for classifying smile types. The index acts as a robust evaluation tool for artificial intelligence models that automatically classify smile types, thereby providing a scientific basis for largely subjective aesthetic elements. CLINICAL SIGNIFICANCE The computational approach employed by the smile index enables quantitative numerical classification of smile types. This fosters the application of computerized methods in quantifying and analyzing real smile characteristics observed in clinical practice, paving the way for a more objective evidence-based approach to aesthetic dentistry.
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Affiliation(s)
- Seulgi Lee
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea; Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Gan Jin
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Ji-Hyun Park
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Hoi-In Jung
- Department of Preventive Dentistry and Public Oral Health, BK21 FOUR Project, College of Dentistry, Yonsei University, Seoul, 03722, Republic of Korea; Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul 03722, Republic of Korea
| | - Jong-Eun Kim
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea.
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Armengou X, Frank K, Kaye K, Brébant V, Möllhoff N, Cotofana S, Alfertshofer M. Facial Anthropometric Measurements and Principles - Overview and Implications for Aesthetic Treatments. Facial Plast Surg 2024; 40:348-362. [PMID: 37487528 DOI: 10.1055/s-0043-1770765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023] Open
Abstract
Facial anatomy is highly individual in each patient. Anthropometric measurements can be a useful tool to objectively analyze individual facial anatomy to allow for better comparability before and after treatments to ultimately improve standardization of facial procedures, both nonsurgical and surgical. The aim of this study was to provide a comprehensive overview over clinically relevant and feasible facial anthropometric measurements and principles for aesthetic medicine. A literature review was conducted to describe the most important and clinically relevant anthropometric measurements and principles for both the entire face and for three aesthetically relevant facial regions: the periorbital region, the nose, and the perioral region. A multitude of different anthropometric measurements and principles have been described in the literature for both the overall facial appearance and specific facial regions. Certain generally accepted anthropometric principles and proportions need to be respected to achieve aesthetic and harmonious results. For the overall facial appearance, a focus on symmetry, certain proportions, facial angles, and indices has been described. Principles and measurements were also described for the periorbital region, the nose, and the perioral region. Although attractiveness and aesthetic perception are subjective, objective evaluation of facial surface anatomy via anthropometric measurements can improve pre- and postinterventional analysis of the face and help the treating physician to individualize treatments, both nonsurgical and surgical.
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Affiliation(s)
| | - Konstantin Frank
- Centre for Plastic and Aesthetic Surgery, Ocean Clinic Marbella, Marbella, Spain
| | - Kai Kaye
- Centre for Plastic and Aesthetic Surgery, Ocean Clinic Marbella, Marbella, Spain
| | - Vanessa Brébant
- Department of Plastic, Aesthetic and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Bayern, Germany
| | - Nicholas Möllhoff
- Division of Hand, Plastic and Aesthetic Surgery, University Hospital Munich, Ludwig Maximilian University, Munich, Germany
| | - Sebastian Cotofana
- Department of Dermatology, Erasmus Hospital, Rotterdam, The Netherlands
- Centre for Cutaneous Research, Blizard Institute, Queen Mary University of London, London, UK
| | - Michael Alfertshofer
- Division of Hand, Plastic and Aesthetic Surgery, University Hospital Munich, Ludwig Maximilian University, Munich, Germany
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Roth TS, Samara I, Perea-Garcia JO, Kret ME. No immediate attentional bias towards or choice bias for male secondary sexual characteristics in Bornean orang-utans (Pongo pygmaeus). Sci Rep 2024; 14:12095. [PMID: 38802458 PMCID: PMC11130206 DOI: 10.1038/s41598-024-62187-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
Primate faces provide information about a range of variant and invariant traits, including some that are relevant for mate choice. For example, faces of males may convey information about their health or genetic quality through symmetry or facial masculinity. Because perceiving and processing such information may have bearing on the reproductive success of an individual, cognitive systems are expected to be sensitive to facial cues of mate quality. However, few studies have investigated this topic in non-human primate species. Orang-utans are an interesting species to test mate-relevant cognitive biases, because they are characterised by male bimaturism: some adult males are fully developed and bear conspicuous flanges on the side of their face, while other males look relatively similar to females. Here, we describe two non-invasive computerised experiments with Bornean orang-utans (Pongo pygmaeus), testing (i) immediate attention towards large flanges and symmetrical faces using a dot-probe task (N = 3 individuals; 2F) and (ii) choice bias for pictures of flanged males over unflanged males using a preference test (N = 6 individuals; 4F). In contrast with our expectations, we found no immediate attentional bias towards either large flanges or symmetrical faces. In addition, individuals did not show a choice bias for stimuli of flanged males. We did find exploratory evidence for a colour bias and energy efficiency trade-offs in the preference task. We discuss our null results and exploratory results in the context of the evolutionary history of Bornean orang-utans, and provide suggestions for a more biocentric approach to the study of orang-utan cognition.
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Affiliation(s)
- Tom S Roth
- Cognitive Psychology Unit, Institute of Psychology, The Faculty of Social and Behavioral Sciences, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands.
- Apenheul Primate Park, J.CWilslaan 21, 7313 HK, Apeldoorn, The Netherlands.
- Animal Behaviour & Cognition, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.
| | - Iliana Samara
- Cognitive Psychology Unit, Institute of Psychology, The Faculty of Social and Behavioral Sciences, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Leiden Institute of Brain and Cognition (LIBC), Leiden, The Netherlands
| | - Juan Olvido Perea-Garcia
- Cognitive Psychology Unit, Institute of Psychology, The Faculty of Social and Behavioral Sciences, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
| | - Mariska E Kret
- Cognitive Psychology Unit, Institute of Psychology, The Faculty of Social and Behavioral Sciences, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands
- Leiden Institute of Brain and Cognition (LIBC), Leiden, The Netherlands
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Hoshi H, Ishii A, Shigihara Y, Yoshikawa T. Binocularly suppressed stimuli induce brain activities related to aesthetic emotions. Front Neurosci 2024; 18:1339479. [PMID: 38855441 PMCID: PMC11159128 DOI: 10.3389/fnins.2024.1339479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/16/2024] [Indexed: 06/11/2024] Open
Abstract
Introduction Aesthetic emotions are a class of emotions aroused by evaluating aesthetically appealing objects or events. While evolutionary aesthetics suggests the adaptive roles of these emotions, empirical assessments are lacking. Previous neuroscientific studies have demonstrated that visual stimuli carrying evolutionarily important information induce neural responses even when presented non-consciously. To examine the evolutionary importance of aesthetic emotions, we conducted a neuroscientific study using magnetoencephalography (MEG) to measure induced neural responses to non-consciously presented portrait paintings categorised as biological and non-biological and examined associations between the induced responses and aesthetic ratings. Methods MEG and pre-rating data were collected from 23 participants. The pre-rating included visual analogue scales for object saliency, facial saliency, liking, and beauty scores, in addition to 'biologi-ness,' which was used for subcategorising stimuli into biological and non-biological. The stimuli were presented non-consciously using a continuous flash suppression paradigm or consciously using binocular presentation without flashing masks, while dichotomic behavioural responses were obtained (beauty or non-beauty). Time-frequency decomposed MEG data were used for correlation analysis with pre-rating scores for each category. Results Behavioural data revealed that saliency scores of non-consciously presented stimuli influenced dichotomic responses (beauty or non-beauty). MEG data showed that non-consciously presented portrait paintings induced spatiotemporally distributed low-frequency brain activities associated with aesthetic ratings, which were distinct between the biological and non-biological categories and conscious and non-conscious conditions. Conclusion Aesthetic emotion holds evolutionary significance for humans. Neural pathways are sensitive to visual images that arouse aesthetic emotion in distinct ways for biological and non-biological categories, which are further influenced by consciousness. These differences likely reflect the diversity in mechanisms of aesthetic processing, such as processing fluency, active elaboration, and predictive processing. The aesthetic processing of non-conscious stimuli appears to be characterised by fluency-driven affective processing, while top-down regulatory processes are suppressed. This study provides the first empirical evidence supporting the evolutionary significance of aesthetic processing.
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Affiliation(s)
- Hideyuki Hoshi
- Department of Sports Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Precision Medicine Centre, Hokuto Hospital, Obihiro, Japan
| | - Akira Ishii
- Department of Sports Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | | | - Takahiro Yoshikawa
- Department of Sports Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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24
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Knoedler L, Alfertshofer M, Geldner B, Sherwani K, Knoedler S, Kauke-Navarro M, Safi AF. Truth Lies in the Depths: Novel Insights into Facial Aesthetic Measurements from a U.S. Survey Panel. Aesthetic Plast Surg 2024:10.1007/s00266-024-04022-0. [PMID: 38772944 DOI: 10.1007/s00266-024-04022-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/11/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Aesthetic facial bone surgery and facial implantology expand the boundaries of conventional facial surgery that focus on facial soft tissue. This study aimed to reveal novel aesthetic facial measurements to provide tailored treatment concepts and advance patient care. METHODS A total of n=101 study participants (46 females and 55 males) were presented with 120 patient portraits (frontal images in natural head posture; 60 females and 60 males) and asked to assess the facial attractiveness (scale 0-10; "How attractive do you find the person in the image?") and the model capability score (MCS; scale 0-10; "How likely do you think the person in the image could pursue a modelling career?"). For each frontal photograph, defined facial measurements and ratios were taken to analyse their relationship with the perception of facial attractiveness and MCS. RESULTS The overall attractiveness rating was 4.3 ± 1.1, while the mean MCS was 3.4 ± 1.1. In young males, there was a significant correlation between attractiveness and the zygoma-mandible angle (ZMA)2 (r= - 0.553; p= 0.011). In young and middle-aged females, MCS was significantly correlated with facial width (FW)1-FW2 ratio (r= 0.475; p= 0.034). For all male individuals, a ZMA1 value of 171.79 degrees (Y= 0.313; p= 0.024) was the most robust cut-off to determine facial attractiveness. The majority of human evaluators (n=62; 51.7%) considered facial implants a potential treatment to improve the patient's facial attractiveness. CONCLUSION This study introduced novel metrics of facial attractiveness, focusing on the facial skeleton. Our findings emphasized the significance of zygomatic measurements and mandibular projections for facial aesthetics, with FI representing a promising surgical approach to optimize facial aesthetics. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Leonard Knoedler
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Yale School of Medicine, New Haven, CT, USA
| | - Michael Alfertshofer
- Division of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Benedikt Geldner
- Department of Hand-, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Khalil Sherwani
- Department of Hand-, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Samuel Knoedler
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Yale School of Medicine, New Haven, CT, USA
| | - Martin Kauke-Navarro
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Yale School of Medicine, New Haven, CT, USA.
| | - Ali-Farid Safi
- Faculty of Medicine, University of Bern, Bern, Switzerland.
- Center for Cranio-Maxillo-Facial Surgery, Bern, Switzerland.
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Felesina T, Zietsch B. The Desirable Dad Hypothesis: Male Same-Sex Attraction as the Product of Selection for Paternal Care via Antagonistic Pleiotropy. ARCHIVES OF SEXUAL BEHAVIOR 2024; 53:1731-1745. [PMID: 38177607 DOI: 10.1007/s10508-023-02780-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/06/2024]
Abstract
Same-sex attraction, a heritable trait with a reproductive cost, lacks a comprehensive evolutionary explanation. Here we build on a hypothesis invoking antagonistic pleiotropy, which suggests that genes linked to male same-sex attraction remain in the gene pool because they have conferred some fitness advantage to heterosexual men possessing them. We posit the "desirable dad hypothesis," which proposes that alleles linked to male non-heterosexual orientations increase traits conducive to childcare; heterosexual men possessing same-sex attracted alleles are more desirable mating partners as a function of possessing superior paternal qualities. We conducted three studies to test predictions from this hypothesis. Results were consistent with all three predictions. Study 1 (N = 1632) showed that heterosexual men with same-sex attracted relatives were more feminine than men without, as indicated by self-report measures of femininity (η2 = .007), warmth (η2 = .002), and nurturance (η2 = .004 - .006). In Study 2 (N = 152), women rated feminine male profiles as more romantically appealing than masculine ones (d = 0.83)-but less so than profiles possessing a combination of feminine and masculine traits. In Study 3 (N = 153), women perceived feminine male profiles as depicting the best fathers and masculine profiles the worst (d = 1.56): consistent with the idea that femininity is attractive for childcare reasons. Together, these findings are consistent with the idea that sexual selection for male parental care may be involved in the evolution of male same-sex attraction.
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Affiliation(s)
- Thomas Felesina
- School of Psychology, The University of Queensland, Level 3, McElwain Building (24A), St Lucia, Brisbane, 4072, Australia.
| | - Brendan Zietsch
- School of Psychology, The University of Queensland, Brisbane, Australia
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Knoll AL, Barrière T, Weigand R, Jacobsen T, Leder H, Specker E. Experiencing beauty in everyday life. Sci Rep 2024; 14:9463. [PMID: 38658638 PMCID: PMC11043425 DOI: 10.1038/s41598-024-60091-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 04/18/2024] [Indexed: 04/26/2024] Open
Abstract
Beauty surrounds us in many ways every day. In three experience sampling (ESM) studies we investigated frequency, category of eliciting stimuli (natural vs human-made) and, the potential moderating role of several individual difference measures on such everyday experiences of beauty in an ecologically valid manner. Further, we explored the impact of such experiences on valence & arousal. Study 1 re-analysed data from a previous study, in line with the current aims. In Studies 2 and 3, we asked participants to report daily experiences of beauty using a mixed random and event-contingent sampling schedule. Mobile notifications (random sampling) prompted participants to take a photo and rate the beauty of their surroundings. Further, current valence and arousal were assessed. Notification frequency and total days of participation differed between these two studies. Participants were able to report additional experiences outside of the notification windows (event-contingent sampling). Our results indicate that we frequently encounter beauty in everyday life and that we find it in nature, in particular. Our results further suggest a mood-boosting effect of encounters with beauty. Lastly, our results indicate influences of individual differences however, these were inconclusive and require further attention.
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Affiliation(s)
- Anna Lena Knoll
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Vienna, Austria.
| | - Tristan Barrière
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Vienna, Austria
| | - Rosalie Weigand
- Experimental Psychology Unit, Helmut Schmidt University/University of the Federal Armed Forces Hamburg, Hamburg, Germany
| | - Thomas Jacobsen
- Experimental Psychology Unit, Helmut Schmidt University/University of the Federal Armed Forces Hamburg, Hamburg, Germany
| | - Helmut Leder
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Vienna, Austria
- Vienna Cognitive Science Hub, University of Vienna, Vienna, Austria
| | - Eva Specker
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Vienna, Austria
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Klauß H, Kunkel A, Müßgens D, Haaker J, Bingel U. Learning by observing: a systematic exploration of modulatory factors and the impact of observationally induced placebo and nocebo effects on treatment outcomes. Front Psychol 2024; 15:1293975. [PMID: 38699574 PMCID: PMC11064928 DOI: 10.3389/fpsyg.2024.1293975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 03/26/2024] [Indexed: 05/05/2024] Open
Abstract
Introduction Observational learning (OL) refers to learning through observing other people's behavior. OL has been suggested as an effective and simple tool to evoke treatment expectations and corresponding placebo and nocebo effects. However, the exact mechanisms by which OL shapes treatment outcomes, its moderating factors and possible areas of application remain unclear. We thus reviewed the existing literature with two different literature searches to answer the following questions: Which influencing factors contribute to OL-induced placebo and nocebo effects (in healthy volunteers and patients) and how large are these effects (search 1)? In which medical fields has OL been used so far to modulate treatment expectancy and treatment outcomes in patients, their caregivers, and at-risk groups (search 2)? We also aimed to explore whether and how the assessment of treatment expectations has been incorporated. Methods We conducted two independent and comprehensive systematic literature searches, both carried out on September 20, 2022. Results We identified 21 studies that investigated OL-mediated placebo and nocebo effects for pain and itch, the (placebo) efficacy of sham treatment on anxiety, and the (nocebo) induction of medication side effects (search 1). Studies showed that OL can efficiently induce placebo and nocebo effects across different presentation modes, with medium effect sizes on average: placebo effects, d = 0.79 (range: d = -0.36-1.58), nocebo effects, d = 0.61 (range: d = 0.04-1.5). Although several moderating factors have been investigated, their contribution to OL-induced effects remains unclear because of inconsistent results. Treatment expectation was assessed in only four studies. Regarding medical applications of OL (search 2), we found 12 studies. They showed that OL was effectively applied in preventive, therapeutic and rehabilitative interventions and that it was mainly used in the field of psychosomatics. Discussion OL effects on treatment outcomes can be both positive and negative. Future research should investigate which individuals would benefit most from OL and how OL can be implemented most effectively to induce placebo and avoid nocebo effects in clinical settings. Systematic review registration This work was preregistered at the Center for Open Science as open-ended registration (doi: 10.17605/OSF.IO/FVHKE). The protocol can be found here: https://archive.org/details/osf-registrations-fvhke-v1.
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Affiliation(s)
- Helena Klauß
- Department of Neurology, Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Medicine Essen, University of Duisburg-Essen, Essen, Germany
| | - Angelika Kunkel
- Department of Neurology, Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Medicine Essen, University of Duisburg-Essen, Essen, Germany
| | - Diana Müßgens
- Department of Neurology, Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Medicine Essen, University of Duisburg-Essen, Essen, Germany
| | - Jan Haaker
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ulrike Bingel
- Department of Neurology, Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Medicine Essen, University of Duisburg-Essen, Essen, Germany
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Dong J, Leger K, Lee AJ, Rafiee Y, Jones BC, Shiramizu VKM. Re-evaluating the Role of Partnership-Related Perceptions in Women's Preferences for Men with Masculine Face Shapes. EVOLUTIONARY PSYCHOLOGY 2024; 22:14747049241262712. [PMID: 38881307 PMCID: PMC11184995 DOI: 10.1177/14747049241262712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 05/07/2024] [Accepted: 06/03/2024] [Indexed: 06/18/2024] Open
Abstract
Many researchers have proposed that women perceive men with masculine face shapes to be less suitable as parents and long-term partners than men with feminine face shapes, causing women to find masculine men more attractive for short-term than long-term relationships. However, recent work shows that results obtained using the type of experimentally manipulated stimuli that were employed in studies presenting evidence for these claims are not necessarily observed when natural (i.e., unmanipulated) face stimuli were used to suggest that the evidence for these claims may need to be revaluated. Consequently, we tested for possible relationships between ratings of natural male faces for parenting- and relationship-related traits and shape masculinity (Study 1) and also tested whether women's preferences for shape masculinity were stronger when natural male faces were rated for short-term relationships than when natural male faces were rated for long-term relationships (Studies 2 and 3). We saw no evidence for either of these predictions, instead finding that men with more attractive faces were perceived to be better parents and better long-term partners. Thus, our findings do not support the widely held view that masculine men are more attractive for short-term relationships because they are perceived to be unlikely to invest time and effort in their romantic partners and offspring.
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Affiliation(s)
- Junzhi Dong
- Department of Psychological Sciences & Health, University of Strathclyde, Glasgow, UK
| | - Kathlyne Leger
- Department of Psychological Sciences & Health, University of Strathclyde, Glasgow, UK
| | - Anthony J. Lee
- Division of Psychology, University of Stirling, Stirling, UK
| | - Yasaman Rafiee
- Department of Psychological Sciences & Health, University of Strathclyde, Glasgow, UK
| | - Benedict C. Jones
- Department of Psychological Sciences & Health, University of Strathclyde, Glasgow, UK
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Krumpholz C, Quigley C, Fusani L, Leder H. Vienna Talking Faces (ViTaFa): A multimodal person database with synchronized videos, images, and voices. Behav Res Methods 2024; 56:2923-2940. [PMID: 37950115 PMCID: PMC11133183 DOI: 10.3758/s13428-023-02264-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2023] [Indexed: 11/12/2023]
Abstract
Social perception relies on different sensory channels, including vision and audition, which are specifically important for judgements of appearance. Therefore, to understand multimodal integration in person perception, it is important to study both face and voice in a synchronized form. We introduce the Vienna Talking Faces (ViTaFa) database, a high-quality audiovisual database focused on multimodal research of social perception. ViTaFa includes different stimulus modalities: audiovisual dynamic, visual dynamic, visual static, and auditory dynamic. Stimuli were recorded and edited under highly standardized conditions and were collected from 40 real individuals, and the sample matches typical student samples in psychological research (young individuals aged 18 to 45). Stimuli include sequences of various types of spoken content from each person, including German sentences, words, reading passages, vowels, and language-unrelated pseudo-words. Recordings were made with different emotional expressions (neutral, happy, angry, sad, and flirtatious). ViTaFa is freely accessible for academic non-profit research after signing a confidentiality agreement form via https://osf.io/9jtzx/ and stands out from other databases due to its multimodal format, high quality, and comprehensive quantification of stimulus features and human judgements related to attractiveness. Additionally, over 200 human raters validated emotion expression of the stimuli. In summary, ViTaFa provides a valuable resource for investigating audiovisual signals of social perception.
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Affiliation(s)
- Christina Krumpholz
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010, Vienna, Austria
- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Vienna, Austria
- Department of Behavioural and Cognitive Biology, University of Vienna, Vienna, Austria
| | - Cliodhna Quigley
- Department of Behavioural and Cognitive Biology, University of Vienna, Vienna, Austria
- Vienna Cognitive Science Hub, University of Vienna, Vienna, Austria
| | - Leonida Fusani
- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Vienna, Austria
- Department of Behavioural and Cognitive Biology, University of Vienna, Vienna, Austria
- Vienna Cognitive Science Hub, University of Vienna, Vienna, Austria
| | - Helmut Leder
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010, Vienna, Austria.
- Vienna Cognitive Science Hub, University of Vienna, Vienna, Austria.
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Mehta S, Vishwanath M, Patel A, Vich ML, Allareddy V, Yadav S. Long-term evaluation of soft-tissue changes after miniscrew-assisted and conventional rapid palatal expansion using voxel-based superimposition of cone-beam computed tomography scans. Am J Orthod Dentofacial Orthop 2024; 165:332-343. [PMID: 38032552 DOI: 10.1016/j.ajodo.2023.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 09/01/2023] [Accepted: 09/01/2023] [Indexed: 12/01/2023]
Abstract
INTRODUCTION This study aimed to evaluate the soft-tissue changes in the long-term after miniscrew-assisted rapid palatal expansion (MARPE) and conventional rapid palatal expansion (RPE) appliances compared with a matched control group using voxel-based superimposition of cone-beam computed tomography (CBCT) scans. METHODS A total of 180 CBCTs for 60 patients at 3-time points were evaluated: pretreatment (T1), postexpansion (T2), and posttreatment (T3) for 3 groups: (1) MARPE, (2) RPE, and (3) controls (time-period T1 to T3: MARPE, 2 years 8 months; RPE, 2 years 9 months; control, 2 years 7 months). The voxel-based superimposition technique was used to superimpose the CBCT scans, after which the soft-tissue surfaces were extracted from the superimposed T1-CBCT, T2-CBCT, and T3-CBCT scans. Nine landmarks were identified on the CBCT scans: nasion, A-point, pogonion, right and left alar base, right and left zygoma, and right and left gonion. The coordinates of the 9 parameters were obtained in the x-axis, y-axis, and z-axis for the CBCT scans and subjected to statistical analyses. The changes in the soft-tissue surfaces were also evaluated by color-coded maps for short-term (T2) and long-term (T3) changes. The mean changes from T1 to T2 and T1 to T3 were tested against no change within the groups by paired t test, and the mean changes among the 3 groups were compared with analysis of variance F test with Tukey's Honest significant difference used for adjusting P values for multiple testing. RESULTS In the short term, both MARPE and RPE led to a significant downward movement of pogonion, left gonion, and lateral movement of the right and left alar base compared with controls at T2 (P <0.05). In addition, MARPE led to a significant downward movement of right gonion than controls at T2 (P <0.05). Moreover, RPE led to a significant downward and forward movement of A-point and downward movement of the right and left alar base than controls at T2 (P <0.05). However, in the long-term, there were no significant differences in the soft-tissue changes among the MARPE, RPE, and control groups. CONCLUSIONS MARPE and RPE do not lead to significant soft-tissue changes in the long term when compared with controls.
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Affiliation(s)
- Shivam Mehta
- Department of Orthodontics, Texas A&M University College of Dentistry, Dallas, Tex.
| | - Meenakshi Vishwanath
- Department of Growth and Development, University of Nebraska Medical Center, College of Dentistry, Lincoln, Nebr
| | | | | | | | - Sumit Yadav
- Department of Growth and Development, University of Nebraska Medical Center, College of Dentistry, Lincoln, Nebr
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Bora P, Agrawal P, Bagga DK, Priya K, Singh N, Bhardwaj R. Influence of upper lip inclination on facial profile attractiveness: A perceptive analysis. J Orthod Sci 2024; 13:8. [PMID: 38516111 PMCID: PMC10953723 DOI: 10.4103/jos.jos_71_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/12/2023] [Accepted: 01/10/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND One of the major objectives of orthodontic treatment is to improve facial attractiveness. To orthodontists, this means that the nose, lips, and chin form an attractive outline when the faces are viewed from one side. The aim of the study is to evaluate the influence of lip inclination on perceived attractiveness using North Indian observer ratings on profile silhouettes. MATERIALS AND METHODS A profile photograph of an Indian male and female were converted to silhouettes for the study using computer software. The lip inclination of the idealized profile image was altered in two-degree increments to create a series of profiles with different upper lip inclination angles and rated by laypersons on a Likert scale. RESULTS An angle of 79° was deemed to be neither attractive nor unattractive. Therefore, within the range of 65°-75°, the pictures were deemed acceptable. Angles above or below this range, up to 91° were perceived as slightly unattractive, and anything outside the range of 93°-105° was deemed very unattractive. LIMITATIONS The study is not generalizable to ethnic groups other than the North Indian population. Another limitation is the inability to visualize the entire face for a complete facial analysis. CONCLUSION An upper lip inclination of 75°-85° in the male profile was associated with perceived attractiveness in all three groups whereas it was in the range of 65°-75° for a female profile. An upper lip inclination angle ranging from 95° to 105° was associated with unattractiveness in all three groups of observers and requires correctional intervention.
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Affiliation(s)
- Prateeksha Bora
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Poonam Agrawal
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Dinesh Kumar Bagga
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Kanak Priya
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Neelam Singh
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India
| | - Rishibha Bhardwaj
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
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Scheller M, de Sousa AA, Brotto LA, Little AC. The Role of Sexual and Romantic Attraction in Human Mate Preferences. JOURNAL OF SEX RESEARCH 2024; 61:299-312. [PMID: 36795115 DOI: 10.1080/00224499.2023.2176811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Sex differences in mate preferences are ubiquitous, having been evidenced across generations and cultures. Their prevalence and persistence have compellingly placed them in the evolutionarily adaptive context of sexual selection. However, the psycho-biological mechanisms contributing to their generation and maintenance remain poorly understood. As such a mechanism, sexual attraction is assumed to guide interest, desire, and the affinity toward specific partner features. However, whether sexual attraction can indeed explain sex differences in partner preferences has not been explicitly tested. To better understand how sex and sexual attraction shape mate preferences in humans we assessed how partner preferences differed across the spectrum of sexual attraction in a sample of 479 individuals that identified as asexual, gray-sexual, demisexual or allosexual. We further tested whether romantic attraction predicted preference profiles better than sexual attraction. Our results show that sexual attraction accounts for highly replicable sex differences in mate preferences for high social status and financial prospects, conscientiousness, and intelligence; however, it does not account for the enhanced preference for physical attractiveness expressed by men, which persists even in individuals with low sexual attraction. Instead, sex differences in physical attractiveness preference are better explained by the degree of romantic attraction. Furthermore, effects of sexual attraction on sex differences in partner preferences were grounded in current rather than previous experiences of sexual attraction. Taken together, the results support the idea that contemporary sex differences in partner preferences are maintained by several psycho-biological mechanisms that evolved in conjunction, including not only sexual but also romantic attraction.
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Affiliation(s)
- Meike Scheller
- Department of Psychology, University of Bath
- Department of Psychology, Durham University
- School of Psychology, University of Aberdeen
| | | | - Lori A Brotto
- Department of Obstetrics and Gynaecology, University of British Columbia
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Cho E, Yoon SA, Park HJ. Neural processing of prototypicality and simplicity of product design in forming design preferences. PLoS One 2024; 19:e0297148. [PMID: 38241423 PMCID: PMC10798453 DOI: 10.1371/journal.pone.0297148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 12/28/2023] [Indexed: 01/21/2024] Open
Abstract
The current study investigates the neural correlates when processing prototypicality and simplicity-affecting the preference of product design. Despite its significance, not much is known about how our brain processes these visual qualities of design when forming design preferences. We posit that, although fluency is the perceptual judgment accounting for the positive effects of both prototypicality and simplicity on design preference, the neural substrates for the fluency judgment associated with prototypicality would differ from those associated with simplicity. To investigate these issues, we conducted an fMRI study of preference decisions for actual product designs with different levels of prototypicality and simplicity. The results show a significant functional gradient between the preference processing of simplicity and prototypicality-i.e., involvement of the early ventral stream of visual information processing for simplicity evaluation but recruitment of the late ventral stream and parietal-frontal brain regions for prototypicality evaluation. The interaction between the simplicity and prototypicality evaluations was found in the extrastriate cortex in the right hemisphere. The segregated brain involvements suggest that the fluency judgment for prototypicality and simplicity contribute to preference choice in different levels of cognitive hierarchy in the perceptual mechanism of the design preference.
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Affiliation(s)
- Erin Cho
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Shin-Ae Yoon
- Department of Media and Communication, Konkuk University, Seoul, South Korea
- Department of Cognitive Science, Yonsei University, Seoul, South Korea
| | - Hae-Jeong Park
- Department of Cognitive Science, Yonsei University, Seoul, South Korea
- Department of Nuclear Medicine, Department of Psychiatry, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Human Complexity and Systems Science, Center for Systems and Translational Brain Sciences, InYonsei University, Seoul, Republic of Korea
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Bahlmann MD. Physical attractiveness, same-sex stimuli, and male venture capitalists' financial risk-taking. Front Psychol 2024; 14:1259143. [PMID: 38282844 PMCID: PMC10811096 DOI: 10.3389/fpsyg.2023.1259143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 12/19/2023] [Indexed: 01/30/2024] Open
Abstract
Financial risk-taking is central to venture capital decision-making, which is increasingly approached from a heuristics and biases perspective. While previous research has identified entrepreneurs’ physical attractiveness as an important heuristic cue in VCs’ investment decisions, this study addresses the role of VCs’ own physical attractiveness in relation to the financial risks they take. Using a dataset for a representative sample of 341 male entrepreneur and male VC dyads in the context of stage financing, this study finds that VCs of below-average attractiveness are more sensitive to the physical attractiveness of the entrepreneur when compared to VCs of average attractiveness. Also, the nature of this effect changes from the first to the second investment round for VCs of below-average attractiveness. Combined, these findings imply that VCs’ funding decisions may be subject to mechanisms that stem from their own physical attractiveness. Theoretical implications for VC decision-making and same-sex stimuli are discussed.
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Lu Y, Xiao K, Pointer M, Lin Y. Predicting Facial Attractiveness from Colour Cues: A New Analytic Framework. SENSORS (BASEL, SWITZERLAND) 2024; 24:391. [PMID: 38257484 PMCID: PMC10819822 DOI: 10.3390/s24020391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/31/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024]
Abstract
Various facial colour cues were identified as valid predictors of facial attractiveness, yet the conventional univariate approach has simplified the complex nature of attractiveness judgement for real human faces. Predicting attractiveness from colour cues is difficult due to the high number of candidate variables and their inherent correlations. Using datasets from Chinese subjects, this study proposed a novel analytic framework for modelling attractiveness from various colour characteristics. One hundred images of real human faces were used in experiments and an extensive set of 65 colour features were extracted. Two separate attractiveness evaluation sets of data were collected through psychophysical experiments in the UK and China as training and testing datasets, respectively. Eight multivariate regression strategies were compared for their predictive accuracy and simplicity. The proposed methodology achieved a comprehensive assessment of diverse facial colour features and their role in attractiveness judgements of real faces; improved the predictive accuracy (the best-fit model achieved an out-of-sample accuracy of 0.66 on a 7-point scale) and significantly mitigated the issue of model overfitting; and effectively simplified the model and identified the most important colour features. It can serve as a useful and repeatable analytic tool for future research on facial impression modelling using high-dimensional datasets.
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Affiliation(s)
- Yan Lu
- School of Design, University of Leeds, Leeds LS2 9JT, UK; (Y.L.); (M.P.)
- Department of Electrical & Electronic Engineering, University of Manchester, Manchester M13 9PL, UK
| | - Kaida Xiao
- School of Design, University of Leeds, Leeds LS2 9JT, UK; (Y.L.); (M.P.)
| | - Michael Pointer
- School of Design, University of Leeds, Leeds LS2 9JT, UK; (Y.L.); (M.P.)
| | - Yandan Lin
- School of Information Science and Technology, Fudan University, Shanghai 200433, China;
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Singh P, Birkett L, Dhar S, Krumhuber E, Mosahebi A, Ponniah A. Facial Beauty and the Correlation of Associated Attributes: An Empirical Aesthetic Database Study. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2024; 12:e5382. [PMID: 38204867 PMCID: PMC10781122 DOI: 10.1097/gox.0000000000005382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/14/2023] [Indexed: 01/12/2024]
Abstract
Background The pursuit of understanding facial beauty has been the subject of scientific interest since time immemorial. How beauty is associated with other perceived attributes that affect human interaction remains elusive. This article aims to explore how facial attractiveness correlates with health, happiness, femininity, and perceived age. We review the existing literature and report an empirical study using expert raters. Methods A peer-reviewed database of 2870 aesthetic female faces with a global ethnic distribution was created. Twenty-one raters were asked to score frontal images on the attributes of health, happiness, femininity, perceived age, and attractiveness, on a Likert scale of 0-100. Results Pearson correlation coefficients ("r") were calculated to correlate attributes, with multiple regression analyses and P values calculated. Strong positive correlation was found between attractiveness and health (r = 0.61, P < 0.05), attractiveness and femininity (r = 0.7, P < 0.05), and health and femininity (r = 0.57, P < 0.05); medium positive correlation between health and happiness (r = 0.31, P < 0.05); and small positive correlation between happiness and femininity (r = 0.21, P < 0.05). A neutral relationship was observed between perceived age and happiness (0.01, P = 0.75), and medium negative correlation between perceived age and attractiveness (-0.32, P < 0.05), health (-0.36, P < 0.05), and femininity (-0.31, P < 0.05). Conclusions Our study illustrates a positive correlation between the positive attributes of health, happiness, femininity and attractiveness, with a negative correlation of all characteristics with increasing perceived age. This provides insight into the complexity of human interaction and provides a holistic view of attraction as being a gateway to the reflexive perception of other attributes. The implications encourage an aesthetic focus on facial reconstruction.
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Affiliation(s)
- Prateush Singh
- From the Department of Surgery, University College London, London, United Kingdom
- Department of Plastic and Reconstructive Surgery, Royal London Hospital, United Kingdom
| | - Liam Birkett
- From the Department of Surgery, University College London, London, United Kingdom
- Department of Plastic and Reconstructive Surgery, Royal London Hospital, United Kingdom
| | - Shivani Dhar
- From the Department of Surgery, University College London, London, United Kingdom
- Department of Plastic and Reconstructive Surgery, Royal London Hospital, United Kingdom
| | - Eva Krumhuber
- Department of Clinical Psychology, University College London, London, United Kingdom
| | - Afshin Mosahebi
- From the Department of Surgery, University College London, London, United Kingdom
- Department of Plastic and Reconstructive Surgery, Royal London Hospital, United Kingdom
| | - Allan Ponniah
- From the Department of Surgery, University College London, London, United Kingdom
- Department of Plastic and Reconstructive Surgery, Royal London Hospital, United Kingdom
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Psomiadis S, Gkantidis N, Sifakakis I, Iatrou I. Perceived Effects of Orthognathic Surgery versus Orthodontic Camouflage Treatment of Convex Facial Profile Patients. J Clin Med 2023; 13:91. [PMID: 38202096 PMCID: PMC10780077 DOI: 10.3390/jcm13010091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Increased facial profile convexity has a common occurrence in the population and is a primary reason for seeking orthodontic treatment. The present study aimed to compare the perceived changes in facial profile appearance between patients treated with combined orthognathic/orthodontic treatment versus only orthodontic camouflage treatment. For this reason, 18 pairs of before- and after-treatment facial profile photos per treatment group (n = 36 patients) were presented to four types of assessors (surgeons, orthodontists, patients, laypeople). Ratings were recorded on 100 mm visual analogue scales depicted in previously validated questionnaires. All rater groups identified minor positive changes in the facial profile appearance after exclusively orthodontic treatment, in contrast to substantial positive changes (14% to 18%) following combined orthodontic and orthognathic surgery. The differences between the two treatment approaches were slightly larger in the lower face and the chin than in the lips. The combined orthodontic and orthognathic surgery interventions were efficient in improving the facial appearance of patients with convex profile, whereas orthodontic treatment alone was not. Given the significant influence of facial aesthetics on various life aspects and its pivotal role in treatment demand and patient satisfaction, healthcare providers should take these findings into account when consulting adult patients with a convex facial profile.
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Affiliation(s)
- Simos Psomiadis
- Department of Oral and Maxillofacial Surgery, School of Dentistry, National and Kapodistrian University of Athens, GR-11527 Athens, Greece;
| | - Nikolaos Gkantidis
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern, CH-3010 Bern, Switzerland;
| | - Iosif Sifakakis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, GR-11527 Athens, Greece;
| | - Ioannis Iatrou
- Department of Oral and Maxillofacial Surgery, School of Dentistry, National and Kapodistrian University of Athens, GR-11527 Athens, Greece;
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Ezra L, Bar Droma E, Baransi A, Friger M, Silberstein E. Evaluation of a Novel Objective Method for The Assessment of Nasal Symmetry Among Patients with Unilateral Cleft Lip. Cleft Palate Craniofac J 2023:10556656231222451. [PMID: 38130069 DOI: 10.1177/10556656231222451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
OBJECTIVE This is a cross sectional study aimed to asses novel semi objectve compter assisted method to asses the symmetry amog unilateral cleft lip patients. DESIGN using Standard inferior view nose photos that were uploaded to Digimizer© Version 4.6.1 (2005-2016 MedCalc Software) Image Analysis, symmetry percentage was calculated and compared between cleft and non-cleft neonates. This method was compared to two subjective methods of rating symmetry. SETTING This a cross sectional pilot study performed in the Univresity Medical Center using standard inferior views of unilateral cleft patients which were compared to non-cleft neonates. PATIENTS Photographs of 71 neonates with unilateral complete and incomplete cleft lip and 30 neonates without facial cleft, which were born at the university medical center, Beer Sheba, Israel, were analyzed in a standard manner to determine nasal symmetry. MAIN MEASURES the novel method proposed produced a nominal value for percentage of symmetry. RESULTS Using Pearson's correlation test we found intra-rater reliability of 91.2% (p < 0.001) and Inter-rater reliability of 82.9% (p < 0.001). The analysis correlated with the surgeons subjective scores in both the numerical ranking method at 73% (p < 0.001) and 72.6% (p < 0.001) and the Ordinal ranking method at 87.6% (p < 0.001) and 77.7% (p < 0.001). The ability of the method to discriminate healthy from Cleft Lip patients overall was 92.3% With high sensitivity and specificity. CONCLUSIONS This method accurately distinguishes healthy patients from cleft lip patients. We have achieved High levels of inter and intra-rater reliability. Significant correlations were found between our semiobjective method and the subjective scores.
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Affiliation(s)
- Liron Ezra
- Department of Plastic Surgery, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eitan Bar Droma
- Oral and Maxillofacial Surgery Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Aamer Baransi
- Department of Plastic Surgery, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Michael Friger
- Department of Epidemiology and Health Services Evaluation, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eldad Silberstein
- Department of Plastic Surgery, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Sheen M, Yekani HAK. The Good, the Bad and the Hijab: A Study of Implicit Associations Made by Practicing Muslims in Their Native Muslim Country. Psychol Rep 2023; 126:2886-2903. [PMID: 35592908 PMCID: PMC10652654 DOI: 10.1177/00332941221103532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recent research indicates that wearing the hijab reduces the attractiveness of female faces perceived by practicing Muslim men and women in their native Muslim country (the United Arab Emirates). The purpose of the current research was to develop this finding to investigate whether other aspects of person perception are also affected when women wear the hijab in this Muslim country. Of particular relevance is that changes in physical attractiveness often affect the personal qualities assigned to individuals. Accordingly, we sought to determine whether such effects occur when the physical attractiveness of women is altered by wearing the hijab. To do this, we used an Implicit Association Test (IAT) to investigate how native Muslim participants in the UAE associated pleasant and unpleasant connotations with images of women either wearing the hijab or with their heads uncovered. As in previous research with native Muslim participants, female faces were again perceived as significantly less attractive when the hijab was worn. However, the accompanying IAT findings showed that these less attractive hijab-wearing images were associated more with pleasant connotations than were the matched uncovered images. These findings provide fresh insight into the effects of the hijab on perceptions of Muslim women in a Muslim country and provide support for the view that cultural clothing can influence person perception beyond physical attractiveness alone.
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Affiliation(s)
- Mercedes Sheen
- Department of Psychology, Heriot-Watt University, Dubai, UAE
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40
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Pawlak Z, Krajewski PK, Wójcik E, Stefaniak A, Ali FM, Finlay AY, Szepietowski JC. Translation and validation of the Polish language version of the Teenagers Quality of Life questionnaire (T-QoL). Postepy Dermatol Alergol 2023; 40:753-756. [PMID: 38282885 PMCID: PMC10809826 DOI: 10.5114/ada.2023.133584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/21/2023] [Indexed: 01/30/2024] Open
Abstract
Introduction Skin diseases affect patients at any age, but as each period in life is different, tools used to assess quality of life impairment should be adjusted according to the particular age group. Adolescence is a unique time, when young individuals go through many changes, making them especially vulnerable to stress. Aim Translation and validation of a Polish language version of the Teenagers Quality of Life questionnaire (T-QoL) questionnaire. Material and methods T-QoL was translated following international guidelines. A group of 34 dermatological patients, aged 12-19 years old, with various skin diseases were given the T-QoL as well as the CDLQI or DLQI to complete. They were also asked to complete the T-QoL questionnaire for the second time after 3-5 days. Statistical analysis of the results was performed. Results The Polish version of T-QoL is internally consistent (Cronbach α 0.893 for the whole questionnaire). Moreover, it presents very good convergent validity (ICC = 0.864). No statistically significant differences between each question were noticed between the first and second time of completing the form. T-QoL scores correlated significantly with DLQI (p = 0.008, r = 0.636) and CDLQI (p < 0.001, r = 0.777) scores. Conclusions The Polish version of the T-QoL questionnaire is a reliable instrument with adequate convergent validity, consistency and reproducibility. It can be successfully used to measure quality of life impairment among teenagers.
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Affiliation(s)
- Zuzanna Pawlak
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Piotr K. Krajewski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Ewa Wójcik
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Aleksandra Stefaniak
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Faraz M. Ali
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - Andrew Y. Finlay
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - Jacek C. Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
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Martínez-Ramírez J, Puts D, Nieto J, G-Santoyo I. Effects of facial skin pigmentation on social judgments in a Mexican population. PLoS One 2023; 18:e0279858. [PMID: 38032952 PMCID: PMC10688750 DOI: 10.1371/journal.pone.0279858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 10/12/2023] [Indexed: 12/02/2023] Open
Abstract
People quickly and involuntarily form impressions of others based on their facial physical attributes, which can modulate critical social interactions. Skin pigmentation is one of the most variable and conspicuous facial traits among human populations. Empirical evidence suggests that these variations reflect ancestral ecological selective pressures balancing cutaneous vitamin D synthesis with the protection of the dermis from ultraviolet radiation. Nevertheless, skin pigmentation may currently be subject to additional selective pressures. For instance, the colonial era in Central and South America developed a highly stratified society based on ethnic origins, and light skin pigmentation became associated with higher social status and deference. This association could have originated through historical social learning that promoted favorable social perceptions towards individuals with lighter skin color and unfavorable perceptions towards individuals with darker skin color, which could still be present in the perception of current populations. Facial skin pigmentation is also sexually dimorphic, with males tending to exhibit darker skin than females, a difference that could be driven by sexual selection. To explore whether social learning and sexual selection represent additional selective pressures on skin pigmentation, we tested how this facial trait influences fundamental social perceptions in a Mexican population (N = 700, 489 female). We sampled facial images of eight European American males with natural lighter facial skin and eight males from an indigenous pre-Columbian community from Mexico, the Me'Phaa, with natural darker facial skin. We produced stimuli from these images by varying the skin pigmentation while preserving the facial shape. Stimuli were rated on attractiveness, trustworthiness, perceived health, dominance, aggressiveness, and femininity/masculinity. We found that the natural light-skinned faces were perceived as more attractive, trustworthy, and healthy but less dominant than the natural dark faces. Furthermore, by varying the facial skin color in these original groups, we altered the perceptions of them, mainly their attractiveness. These results partially support the hypothesis that dark facial skin color may help males compete for mates. Also, the results strongly support the view that lighter facial skin color became associated with social benefits through social learning in this Mexican population. Our findings, when viewed through the lens of cultural evolution, align with previous research in social psychology and anthropology. They hold the potential to offer a comprehensive understanding of the origin of this social phenomenon of cultural transmission, which currently plays a role in the formation of racial attitudes, stereotyping, and racial inequality in Mexican and other Latin American populations.
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Affiliation(s)
- Jaaziel Martínez-Ramírez
- Faculty of Psychology, Neuroecology Laboratory, National Autonomous University of Mexico, Mexico City, Mexico
| | - David Puts
- Department of Anthropology and Center for Human Evolution and Diversity, The Pennsylvania State University, University Park, College Township, Pennsylvania, United States of America
| | - Javier Nieto
- Faculty of Psychology, Laboratory of Learning and Adaptation, National Autonomous University of Mexico, Mexico City, Mexico
| | - Isaac G-Santoyo
- Faculty of Psychology, Neuroecology Laboratory, National Autonomous University of Mexico, Mexico City, Mexico
- Unidad de Investigación en Psicobiología y Neurociencias, National Autonomous University of Mexico, Mexico City, Mexico
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Gkantidis N, Opacic J, Kanavakis G, Katsaros C, Halazonetis D. Facial asymmetry and midsagittal plane definition in 3D: A bias-free, automated method. PLoS One 2023; 18:e0294528. [PMID: 38011159 PMCID: PMC10681257 DOI: 10.1371/journal.pone.0294528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/16/2023] [Indexed: 11/29/2023] Open
Abstract
Symmetry is a fundamental biological concept in all living organisms. It is related to a variety of physical and social traits ranging from genetic background integrity and developmental stability to the perception of physical appearance. Within this context, the study of human facial asymmetry carries a unique significance. Here, we validated an efficient method to assess 3D facial surface symmetry by best-fit approximating the original surface to its mirrored one. Following this step, the midsagittal plane of the face was automatically defined at the midpoints of the contralateral corresponding vertices of the superimposed models and colour coded distance maps were constructed. The method was tested by two operators using facial models of different surface size. The results show that the midsagittal plane definition was highly reproducible (maximum error < 0.1 mm or°) and remained robust for different extents of the facial surface model. The symmetry assessments were valid (differences between corresponding bilateral measurement areas < 0.1 mm), highly reproducible (error < 0.01 mm), and were modified by the extent of the initial surface model. The present landmark-free, automated method to assess facial asymmetry and define the midsagittal plane of the face is accurate, objective, easily applicable, comprehensible and cost effective.
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Affiliation(s)
- Nikolaos Gkantidis
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Jasmina Opacic
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Georgios Kanavakis
- Department of Orthodontics and Pediatric Dentistry, UZB–University School of Dental Medicine, University of Basel, Basel, Switzerland
| | - Christos Katsaros
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Demetrios Halazonetis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
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Carrito ML, Bismarck F, Bem-Haja P, Perrett DI, Santos IM. When he smiles: Attractiveness preferences for male faces expressing emotions. EVOLUTIONARY HUMAN SCIENCES 2023; 5:e31. [PMID: 38155757 PMCID: PMC10753340 DOI: 10.1017/ehs.2023.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 12/30/2023] Open
Abstract
The impact of sexual dimorphism on facial attractiveness has been controversial owing to contradictory results, particularly in studies on female preferences. Given that sexually dimorphic facial features, especially more masculine ones, have been previously related to the perception of anger, we investigated the bi-directional influence of emotional expressions and facial masculinity and explored their impact on women's preferences for facial masculinity. We confirmed the effect of facial sexual dimorphism on the perception of emotional cues (happiness and anger) and explored whether smiling or angry expressions influence women's perception of masculinity in male faces. Additionally, we examined women's preferences for emotionally expressive male faces altered along a continuum of masculinity. The results showed that masculinised faces are perceived as angrier, while feminised faces are perceived as happier (Experiment 1), and that angry faces are perceived as more masculine when compared with happy faces (Experiment 2). It is noteworthy that our Experiment 3 uncovered a pivotal finding: women prefer reduced feminisation in happy faces compared with neutral/angry faces. This suggests that the avoidance response observed towards masculinity is attenuated by a smiling expression. The current study introduces a new perspective to be considered when exploring the role of facial masculinity in women's attractiveness preferences.
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Affiliation(s)
- Mariana L. Carrito
- Centro de Psicologia da Universidade do Porto, Faculdade de Psicologia e de Ciências da Educação da Universidade do Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal
| | - Francisca Bismarck
- Centro de Psicologia da Universidade do Porto, Faculdade de Psicologia e de Ciências da Educação da Universidade do Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal
| | - Pedro Bem-Haja
- Centro de Investigação em Tecnologias e Serviços de Saúde, Departamento de Educação e Psicologia, Universidade de Aveiro, Aveiro, Portugal
| | - David I. Perrett
- School of Psychology and Neuroscience, University of St Andrews, St Andrews, UK
| | - Isabel M. Santos
- William James Center for Research, Departamento de Educação e Psicologia, Universidade de Aveiro, Aveiro, Portugal
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Sano T, Kawabata H. A computational approach to investigating facial attractiveness factors using geometric morphometric analysis and deep learning. Sci Rep 2023; 13:19797. [PMID: 37957245 PMCID: PMC10643417 DOI: 10.1038/s41598-023-47084-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023] Open
Abstract
Numerous studies discuss the features that constitute facial attractiveness. In recent years, computational research has received attention because it can examine facial features without relying on prior research hypotheses. This approach uses many face stimuli and models the relationship between physical facial features and attractiveness using methods such as geometric morphometrics and deep learning. However, studies using each method have been conducted independently and have technical and data-related limitations. It is also difficult to identify the factors of actual attractiveness perception using only computational methods. In this study, we examined morphometric features important for attractiveness perception through geometric morphometrics and impression evaluation. Furthermore, we used deep learning to analyze important facial features comprehensively. The results showed that eye-related areas are essential in determining attractiveness and that different racial groups contribute differently to the impact of shape and skin information on attractiveness. The approach used in this study will contribute toward understanding facial attractiveness features that are universal and diverse, extending psychological findings and engineering applications.
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Affiliation(s)
- Takanori Sano
- Graduate School of Sociology, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan.
| | - Hideaki Kawabata
- Graduate School of Sociology, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan
- Faculty of Literature, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan
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45
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Kamal M, Möbius M, Bartella AK, Lethaus B. Perception of aesthetic features after surgical treatment of craniofacial malformations by observers of the same age: An eye-tracking study. J Craniomaxillofac Surg 2023; 51:708-715. [PMID: 37813772 DOI: 10.1016/j.jcms.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/11/2023] [Accepted: 09/30/2023] [Indexed: 10/11/2023] Open
Abstract
The aim of this study is to evaluate where exactly children and adolescents of the same group look when they interact with each other, and attempt to record and analyse the data recorded by eye-tracking technology. MATERIALS AND METHODS 60 subjects participated in the study, evenly divided into three age categories of 20 each in pre-school/primary school age (5-9 years), early adolescence (10-14 years) and late adolescence/transition to adulthood (15-19 years). Age groups were matched and categorized to be used both for creating the picture series and testing. Photographs of patients with both unilateral and bilateral cleft lip and palate were used to create the series of images which consisted of a total of 15 photos, 5 of which were photos of patients with surgically treated cleft deformity and 10 control photos with healthy faces, that were presented in random order. Using the eye-tracking module, the data on "area of first view" (area of initial attention), "area with longest view" (area of sustained attention), "time until view in this area" (time of initial attention) and "frequency of view in each area" (time of sustained attention) were calculated. RESULTS Across all groups, there was no significant difference for the individual regions for the parameters of initial attention (area of first view), while the time until first fixation of one of the AOIs (time until view in this area) was significant for all facial regions. A predictable path of the facial scan is abandoned when secondary facial deformities are present and attention is focused more on the region of an existing deformity, which are the nose and mouth regions. CONCLUSIONS There are significant differences in both male and female participants' viewing of faces with and without secondary cleft deformity. While in the age group of the younger test persons it was still the mouth region that received special attention from the male viewers, this shifted in the male test persons of the middle age group to the nose region, which was fixed significantly more often and faster. In the female participants, the mouth and nose regions were each looked at for twice as long compared to the healthy faces, making both the mouth and the nose region are in the focus of observation.
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Affiliation(s)
- Mohammad Kamal
- Department of Surgical Sciences, College of Dentistry, Health Sciences Center, Kuwait University, Safat, Kuwait.
| | - Marianne Möbius
- Department of Oral and Maxillofacial Surgery, Leipzig University Hospital, Leipzig, Germany.
| | - Alexander K Bartella
- Department of Oral and Maxillofacial Surgery, Leipzig University Hospital, Leipzig, Germany.
| | - Bernd Lethaus
- Department of Oral and Maxillofacial Surgery, Leipzig University Hospital, Leipzig, Germany.
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Cohen JL, Goodman GJ, De Almeida AT, Jones D, Carruthers J, Grimes PE, de Maio M, Swift A, Solish N, Fagien S, Carruthers A, Sangha S. Decades of beauty: Achieving aesthetic goals throughout the lifespan. J Cosmet Dermatol 2023; 22:2889-2901. [PMID: 37632289 DOI: 10.1111/jocd.15968] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Several elements, including age, influence judgments of beauty and attractiveness. Aging is affected by intrinsic factors (e.g., genetics, race/ethnicity, anatomical variations) and extrinsic factors (e.g., lifestyle, environment). AIMS To provide a general overview of minimally invasive injectable procedures for facial beautification and rejuvenation to meet the aesthetic goals of patients across their lifespan, organized by decade. METHODS This case study review describes aesthetic considerations of females in their third to sixth decade of life (i.e., 20-60 years of age or beyond). Each case study reports the treatments, specifically botulinum toxin type A and soft tissue fillers, used to address aesthetic concerns. RESULTS Signs of aging, as well as aesthetic goals and motivations, vary by age groups, cultures, and races/ethnicities. However, there are overarching themes that are associated with each decade of life, such as changes in overall facial shape and specific facial regions, which can be used as a starting point for aesthetic treatment planning. Appropriate patient selection, thorough aesthetic evaluation, product knowledge, and injection technique, as well as good physician-patient communication, are essential for optimal treatment outcomes. CONCLUSIONS Nonsurgical facial injectable treatments can successfully enhance and rejuvenate facial features across different age ranges. A comprehensive understanding of facial aging and the aesthetic considerations of patients by the decade contributes to optimal treatment planning and maintenance.
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Affiliation(s)
- Joel L Cohen
- AboutSkin Dermatology and DermSurgery, Greenwood Village, Colorado, USA
| | - Greg J Goodman
- Adjunct Professor of Dermatology, Monash University, Clayton, Victoria, Australia
| | - Ada Trindade De Almeida
- Medical Director and Cosmetic Dermatologic Surgeon, Clinica de Dermatologia, Hospital do Servidor Público Municipal de São Paulo, São Paulo, Brazil
| | - Derek Jones
- Skin Care and Laser Physicians of Beverly Hills, Los Angeles, California, USA
| | - Jean Carruthers
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Pearl E Grimes
- Vitiligo & Pigmentation Institute, Los Angeles, California, USA
| | | | - Arthur Swift
- Westmount Institute of Plastic Surgery, Montreal, Quebec, Canada
| | | | - Steven Fagien
- Aesthetic Eyelid Plastic Surgery, Boca Raton, Florida, USA
| | | | - Sara Sangha
- Allergan Aesthetics, an AbbVie Company, Irvine, California, USA
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47
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Tieo S, Dezeure J, Cryer A, Lepou P, Charpentier MJ, Renoult JP. Social and sexual consequences of facial femininity in a non-human primate. iScience 2023; 26:107901. [PMID: 37766996 PMCID: PMC10520438 DOI: 10.1016/j.isci.2023.107901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/11/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
In humans, femininity shapes women's interactions with both genders, but its influence on animals remains unknown. Using 10 years of data on a wild primate, we developed an artificial intelligence-based method to estimate facial femininity from naturalistic portraits. Our method explains up to 30% of the variance in perceived femininity in humans, competing with classical methods using standardized pictures taken under laboratory conditions. We then showed that femininity estimated on 95 female mandrills significantly correlated with various socio-sexual behaviors. Unexpectedly, less feminine female mandrills were approached and aggressed more frequently by both sexes and received more male copulations, suggesting a positive valuation of masculinity attributes rather than a perception bias. This study contributes to understand the role of femininity on animal's sociality and offers a framework for non-invasive research on visual communication in behavioral ecology.
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Affiliation(s)
- Sonia Tieo
- CEFE, University Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Jules Dezeure
- Projet Mandrillus, Fondation Lékédi pour la Biodiversité, Bakoumba BP 52, Gabon
| | - Anna Cryer
- Projet Mandrillus, Fondation Lékédi pour la Biodiversité, Bakoumba BP 52, Gabon
| | - Pascal Lepou
- Projet Mandrillus, Fondation Lékédi pour la Biodiversité, Bakoumba BP 52, Gabon
| | - Marie J.E. Charpentier
- Institut des Sciences de l’Evolution de Montpellier (ISEM), UMR5554 - University of Montpellier/CNRS/IRD/EPHE, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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Lim B, Seth I, Kah S, Sofiadellis F, Ross RJ, Rozen WM, Cuomo R. Using Generative Artificial Intelligence Tools in Cosmetic Surgery: A Study on Rhinoplasty, Facelifts, and Blepharoplasty Procedures. J Clin Med 2023; 12:6524. [PMID: 37892665 PMCID: PMC10607912 DOI: 10.3390/jcm12206524] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/03/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Artificial intelligence (AI), notably Generative Adversarial Networks, has the potential to transform medical and patient education. Leveraging GANs in medical fields, especially cosmetic surgery, provides a plethora of benefits, including upholding patient confidentiality, ensuring broad exposure to diverse patient scenarios, and democratizing medical education. This study investigated the capacity of AI models, DALL-E 2, Midjourney, and Blue Willow, to generate realistic images pertinent to cosmetic surgery. We combined the generative powers of ChatGPT-4 and Google's BARD with these GANs to produce images of various noses, faces, and eyelids. Four board-certified plastic surgeons evaluated the generated images, eliminating the need for real patient photographs. Notably, generated images predominantly showcased female faces with lighter skin tones, lacking representation of males, older women, and those with a body mass index above 20. The integration of AI in cosmetic surgery offers enhanced patient education and training but demands careful and ethical incorporation to ensure comprehensive representation and uphold medical standards.
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Affiliation(s)
- Bryan Lim
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
- Central Clinical School, Faculty of Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Ishith Seth
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
- Central Clinical School, Faculty of Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Skyler Kah
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
| | - Foti Sofiadellis
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
| | - Richard J. Ross
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
| | - Warren M. Rozen
- Department of Plastic and Reconstructive Surgery, Peninsula Health, Frankston, VIC 3199, Australia
- Central Clinical School, Faculty of Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Roberto Cuomo
- Plastic Surgery Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
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Xie J, Li L, Lu Y, Zhuang J, Wu Y, Li P, Zheng L. Learning from in-group and out-group models induces separative effects on human mate copying. Soc Cogn Affect Neurosci 2023; 18:nsad051. [PMID: 37757743 PMCID: PMC10547020 DOI: 10.1093/scan/nsad051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 07/27/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Mate copying is a social learning process in which individuals gather public information about potential mates by observing models' choices. Previous studies have reported that individual attributes of female models affect mate copying, yet little is known about whether and how the group attributes of models influence mate copying. In the current behavioral and functional magnetic resonance imaging studies, female participants were asked to rate their willingness to choose the depicted males as potential romantic partners before and after observing in-group or out-group female models accepting, rejecting or being undecided (baseline) about the males. Results showed that participants changed their ratings to align with the models' acceptance or rejection choices. Compared to rejection copying, the effect of acceptance copying was stronger and regulated by in- and out-group models, manifesting a discounting copying effect when learning from out-group models. At the neural level, for acceptance copying, stronger temporoparietal junction (TPJ) activity and connectivity between TPJ and anterior medial prefrontal cortex (amPFC) were observed when female models belonged to out-group members; meanwhile, the functional connection of TPJ and amPFC positively predicted the rating changes when learning from out-group models. The results indicated that participants might need more resources to infer out-group members' intentions to overcome the in-group bias during acceptance copying.
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Affiliation(s)
- Jiajia Xie
- Department of Psychology, Normal College, Qingdao University, Qingdao 266071, China
| | - Lin Li
- Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Yang Lu
- Fudan Institute on Ageing, Fudan University, Shanghai 200433, China
- MOE Laboratory for National Development and Intelligent Governance, Fudan University, Shanghai 200433, China
| | - Jinying Zhuang
- School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Yuyan Wu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Peng Li
- School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Li Zheng
- Fudan Institute on Ageing, Fudan University, Shanghai 200433, China
- MOE Laboratory for National Development and Intelligent Governance, Fudan University, Shanghai 200433, China
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Kumar VA, Hulst van der RRWJ, Shome DD, Booi DI, Tandel HA, Mhatre PD. Multidimensional Indicators as Enablers on Perception of Facial Beauty and Appearance among Indian Population: A Descriptive Cross-Sectional Study. J Cutan Aesthet Surg 2023; 16:292-299. [PMID: 38314361 PMCID: PMC10833498 DOI: 10.4103/jcas.jcas_208_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024] Open
Abstract
Background Facial appearance has been a flagbearer of "beauty" since time immemorial. Perception of beauty is highly influenced by cultural, interpersonal, and intra-personal variations. Objectives This study aimed to assess the perception of facial beauty and appearance through multidimensional influencing indicators among the Indian population, and to determine whether the physically attractive person possesses more personal and socially desirable traits than the comparatively less attractive individual. Materials and Methods A study population of 474 with equal male and female population of Indian origin was selected. Their perception was assessed based on the prevalidated, self-administered questionnaire using a tool with five major multidimensional indicators. Six images were selected, three each of male and female subjects, and labeled as A, B, and C, in descending order of attractiveness. The multidimensional influencing indicator tool was self-administered to the participants and the responses were recorded individually. Results Photograph A scored the highest out of the three grading scales in both males and females. Conclusion The most attractive photograph, in both males and females, was deemed to be associated with higher scores of attractiveness and success.
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Affiliation(s)
- Vaibhav Alok Kumar
- Department of Research, Maastricht University Medical Centre, Maastricht University, Maastricht, Netherlands
- Department of Research, The Esthetic Clinics, Mumbai, India
- Department of Public Health Dentistry, GD Pol Foundation YMT Dental College, Navi Mumbai, India
| | - R R W J Hulst van der
- Department of Research, Maastricht University Medical Centre, Maastricht University, Maastricht, Netherlands
- Department of Plastic Surgery, Maastricht University Medical Centre, Maastricht University, Maastricht, Netherlands
| | - Debraj Debabrata Shome
- Department of Facial Plastic Surgery and Facial Cosmetic Surgery, The Esthetic Clinics, Mumbai, India
| | - Darren I Booi
- Department of Plastic Surgery, Maastricht University Medical Centre, Maastricht University, Maastricht, Netherlands
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