scholarly journals Effects of symmetry and familiarity on the attractiveness of human faces

Psihologija ◽  
2016 ◽  
Vol 49 (3) ◽  
pp. 301-311 ◽  
Author(s):  
Tatjana Mentus ◽  
Slobodan Markovic

The effects of both symmetry (perceptual factor) and familiarity (cognitive factor) on facial attractiveness were investigated. From the photographs of original slightly asymmetric faces, symmetric left-left (LL) and right-right (RR) versions were generated. Familiarity was induced in the learning block using the repetitive presentation of original faces. In the test block participants rated the attractiveness of original, previously seen (familiar) faces, original, not previously seen faces, and both LL and RR versions of all faces. The analysis of variance showed main effects of symmetry. Post hoc tests revealed that asymmetric original faces were rated as more attractive than both LL and RR symmetric versions. Familiarity doesn?t have a significant main effect, but the symmetry-familiarity interaction was obtained. Additional post hoc tests indicated that facial attractiveness is positively associated with natural slight asymmetry rather than with perfect symmetry. Also, unfamiliar LL symmetric versions were rated as more attractive than familiar LL versions, whereas familiar RR versions were rated as more attractive than RR unfamiliar faces. These results suggested that symmetry (perceptual factor) and familiarity (cognitive or memorial factor) play differential roles in facial attractiveness, and indicate a relatively stronger effect of the perceptual compared to the cognitive factor. [Projekat Ministarstva nauke Republike Srbije, br. ON179018 i br. ON179033] <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/PSI1701101E">10.2298/PSI1701101E</a><u></b></font>

2005 ◽  
Vol 100 (2) ◽  
pp. 488-492 ◽  
Author(s):  
Neala Ambrosi-Randić ◽  
Alessandra Pokrajac-Bulian ◽  
Vladimir Takšić

320 Croatian female students ( M = 20.4 yr.) were recruited to examine the validity and reliability of figural scales using different numbers of stimuli (3, 5, 7, and 9) and different serial presentation (serial and nonserial order). A two-way analysis of variance (4 numbers × 2 orders of stimuli) was performed on ratings of current self-size and ideal size as dependent variables. Analysis indicated a significant main effect of number of stimuli. This, together with post hoc tests indicated that ratings were significantly different for a scale of three figures from scales of more figures, which in turn did not differ among themselves. Main effects of order of stimuli, as well as the interaction, were not significant. The results support the hypothesis that the optimal number of figures on a scale is seven plus (or minus) two.


1980 ◽  
Vol 2 (2) ◽  
pp. 148-154 ◽  
Author(s):  
Robert S. Weinberg ◽  
Marvin Genuchi

The purpose of the present investigation was to determine the relationship between competitive trait anxiety (CTA), state anxiety, and golf performance in a field setting. Ten low, moderate, and high CTA collegiate golfers (N = 30) performed in a practice round on Day 1 and Day 2 of a competitive tournament. State anxiety results indicated a significant CTA main effect with low CTA subjects displaying lower state anxiety than moderate or high CTA subjects. The competition main effect was also significant, with post hoc tests indicating higher levels of state anxiety during Day 1 and Day 2 than during the practice round. Performance results produced a significant CTA main effect with low CTA subjects displaying higher levels of performance than moderate or high CTA subjects. Correlations between SCAT and state anxiety indicated that SCAT was a good predictor of precompetitive state anxiety. The direction of state anxiety and performance CTA main effects provide support for Oxendine's (1970) contentions that sports requiring fine muscle coordination and precision (e.g., golf) are performed best at low levels of anxiety. Future directions for research are offered.


2019 ◽  
Vol 62 (12) ◽  
pp. 4351-4355 ◽  
Author(s):  
Erica G. Herzberg ◽  
Danielle Brates ◽  
Sonja M. Molfenter

Purpose Previous work has established that advanced bolus location at swallow onset (BLSO) alone is not correlated with an increased swallowing safety risk in healthy seniors. The primary goal of this retrospective study was to examine whether healthy seniors systematically alter their laryngeal vestibule closure reaction time (LVCrt) to maintain a safe swallow in the context of advanced BLSO. The secondary goal was to determine if longer LVCrt distinguished Penetration–Aspiration Scale (PAS; Rosenbek, Robbins, Roecker, Coyle, & Wood, 1996) scores of 1 versus 2. Method Videofluoroscopy studies from 43 healthy seniors (21 men, 22 women; M age = 76.7 years, SD = 7.2) were analyzed. LVCrt was calculated for 3 × 5 ml and 3 × 20 ml thin liquid barium boluses per participant. PAS and BLSO (Modified Barium Swallow Impairment Profile Component 6) were scored for all swallows. Reliability (intraclass correlation coefficient > .75) was established on all measures. A linear mixed-effects regression was run to examine the effect of PAS and BLSO on LVCrt while controlling for bolus volume and repeated swallow trial. Results There was a main effect of BLSO ( F = 4.6, p = .004) and PAS ( F = 29.3, p < .001) on LVCrt. Post hoc pairwise comparisons revealed that LVCrt was significantly faster in BLSO scores of 3 (pyriforms) compared to scores of both 0 (posterior angle of the ramus) and 1 (valleculae). Significantly prolonged LVCrt was observed in PAS scores of 2 in comparison to 1. No significant main effects of bolus volume or trial, or interactions, were observed. Conclusions Our findings suggest that healthy seniors compensate for advanced BLSO by increasing their LVCrt. Furthermore, faster LVCrt was shown to distinguish PAS scores of 1 versus 2. Additional work should explore the relationship between LVCrt, BLSO, and PAS scores in dysphagic populations, specifically those with known sensory impairments.


1982 ◽  
Vol 55 (1) ◽  
pp. 215-222 ◽  
Author(s):  
James D. Papsdorf ◽  
David P. Himle ◽  
Barbara S. McCann ◽  
Bruce A. Thyer

A single-solution anagram task was administered to high and low test-anxious 32 male and 32 female undergraduates under conditions of high and low external distraction. No significant main effects were found linking solution times to either test-anxiety level or the presence or absence of distracting stimuli. Following a planned post hoc analysis which assigned the anagrams into ‘hard’ or ‘easy’ categories, a significant main effect for level of test anxiety was found for the ‘hard’ anagrams, indicating that test anxiety debilitates performance only when the criterion task is especially difficult. Difficulty of anagrams also significantly interacted with subjects' sex, test anxiety, and distraction. The results are discussed in terms of the hypotheses that distracting stimuli may produce increases in arousal during difficult tasks and that these increments may either compromise or improve performance, depending upon the level of test anxiety which is viewed as a determinant of the initial arousal level of the subject.


1969 ◽  
Vol 29 (1) ◽  
pp. 323-325 ◽  
Author(s):  
H. Keith Rodewald

An experiment was performed in which the tachistoscopic recognition threshold for nonsense syllables was the dependent variable. Glaze association value (AV), print size (between- Ss effects), and frequency of prior exposure of the syllables (within- Ss effect) were the independent variables. Analysis of variance indicated significance ( p = .05) for size and frequency main effects. Thresholds decreased with increasing size and frequency. The AV main effect and the interactions were not significant, although the trend suggested an inverse relation between AV and thresholds. The findings as an extension of earlier work and as evidence for a perceptual factor in the frequency-threshold relation were discussed.


Curationis ◽  
2012 ◽  
Vol 35 (1) ◽  
Author(s):  
Erhabor S. Idemudia ◽  
Nyambeni A. Matamela

Background: HIV (Human immunodeficiency Virus), AIDS and cancer are feared terminal diseases. HIV sufferers are known to be stigmatized. The stigma surrounding cancer, unfortunately, is hardly the focus of psychological investigations, and hence this provoked the need to compare the stigma suffered by both groups, and how these have impacted on the psychological functioning of the disease sufferer. Objectives: The study had two main objectives, firstly, to explore whether HIV patients suffer more stigma than cancer patients or not, and secondly, to understand the most common type of stigma and if stigma is associated with psychopathology. Psychopathology is measured with GHQ–28 which evaluates somatic complaints, anxiety, depression and social dysfunction.Method: The study was a survey, and descriptive in nature, and anchored on two hypotheses: Firstly, that HIV patients will experience more stigmas than cancer patients and consequently report more psychological dysfunctions. Secondly that there will be a significant difference between types of stigma and the symptoms reported about them. Data were collected from a conveniently sampled group of 50 HIV positive patients and another 50 patients diagnosed with cancer, in two clinics and a hospital around the Gauteng Province. The majority of the participants were females, numbering 62 (62, 0%), whilst 38 (38.0%) were males. The age of the respondents ranged from 20–73 years with a mean age of 44.4 years (s.d. = 11.6).Results: Results revealed a significant main effect for enacted stigma F = (1.98), = 17.629, p < .001 and anxiety F = (1.98) = 5.750, p < .001. A post hoc Bonferroni also showed that HIV patients had a higher mean score of enacted stigma (X-bar = 4.22) than cancer patients (X-bar = 1.28) and also HIV patients reported more anxiety (X-bar = 8.81) than cancer patients (X-bar = 6.42). Enacted stigma significantly influenced the GHQ Total (F = (98) = 1.700, p < .05); anxiety (F = (97) = 2.578, p < .004); and depression (F = (97) = 3.390 p < .001). The perceived community stigma had one main effect for depression (F = (1.98) = 1.452, p < .05). There were no significant main effects for internally felt stigma and psychological dysfunctions. Both hypotheses were partially supported.Conclusion: Recommendations included tailoring interventions to meet the cultural needs of patients. Other recommendations were made in accordance with the findings of the study.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
David Rafique ◽  
Ursula Heggli ◽  
Denis Bron ◽  
David Colameo ◽  
Petra Schweinhardt ◽  
...  

AbstractTo investigate the effects of increasing axial load on cervical motor control. Surrogates of cervical motor control were active cervical range of motion (C-ROM) and joint position error (JPE) assessed in flexion, extension, lateroflexion and rotation directions in 49 healthy young men (mean age: 20.2 years). All measurements were executed with 0-, 1-, 2-, and 3-kg axial loads. Linear mixed models were used to assess the effects of axial loading and cervical movement-direction on C-ROM and JPE. Post-hoc analysis was performed to compare load levels. Axial loading (p = 0.045) and movement direction (p < 0.001) showed significant main effects on C-ROM as well as an interaction (p < 0.001). C-ROM significantly changed with 3-kg axial load by decreaseing extension (− 13.6%) and increasing lateroflexion (+ 9.9%). No significant main effect was observed of axial loading on JPE (p = 0.139). Cervical motor control is influenced by axial loading, which results in decreased C-ROM in extension and increased C-ROM lateroflexion direction.


2020 ◽  
Author(s):  
Linda Katherine Kaye ◽  
Sara Rodríguez-Cuadrado ◽  
Bethany R. Jones ◽  
Stephanie A. Malone ◽  
Helen Joanne Wall

Despite the fact that emoji are a key part of everyday communication, little is known about the way they may relate to emotional processing of written language. The current study aimed to explore this issue, examining whether including an emotionally-congruent emoji onto emotionally-valenced words could enhance emotional processing. Participants completed a lexical decision task which varied the emotional valence of words (positive, negative, neutral). To each word an emoji was appended; these were either congruent to the valence of the word (e.g., positive word + positive emoji), incongruent (positive word + negative emoji) or a control (positive word + neutral emoji). Additionally, neutral words were accompanied by a positive, negative or neutral emoji. Response accuracy and latency were recorded. Regarding accuracy, no significant main effects or interactions were found for word valence or emoji valence. However, for latency, a main effect was found for word valence in which post-hoc analysis revealed that positive words were processed quicker than neutral words. However, the interaction between word and emoji valence was non-significant. This suggests that emoji may not provide an automatic processing advantage when used in written communication


2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Velarie Ansu ◽  
Stephanie Dickinson ◽  
Alyce Fly

Abstract Objectives To determine which digit and hand have the highest and lowest skin carotenoid scores, to compare inter-and-intra-hand variability of digits, and to determine if results are consistent with another subject. Methods Two subjects’ first(F1), second(F2), third(F3) and fifth(F5) digits on both hands were measured for skin carotenoids with a Veggie Meter, for 3 times on each of 18 days over a 37-day period. Data were subjected to ANOVA in a factorial treatment design to determine main effects for hand (2 levels), digits (4), and days (18) along with interactions. Differences between digits were determined by Tukey's post hoc test. Results There were significant hand x digit, hand x day, digit x day, and hand x digit x day interactions and significant simple main effects for hand, digit, and day (all P < 0.001). Mean square errors were 143.67 and 195.62 for subject A and B, respectively, which were smaller than mean squares for all main effects and interactions. The mean scores ± SD for F1, F2, F3, and F5 digits for the right vs left hands for subject A were F1:357.13 ± 45.97 vs 363.74 ± 46.94, F2:403.17 ± 44.77 vs. 353.20 ± 44.13, F3:406.76 ± 43.10 vs. 357.11 ± 45.13, and F5:374.95 ± 53.00 vs. 377.90 ± 47.38. For subject B, the mean scores ± SD for digits for the right vs left hands were F1:294.72 ± 61.63 vs 280.71 ± 52.48, F2:285.85 ± 66.92 vs 252.67 ± 67.56, F3:268.56 ± 57.03 vs 283.22 ± 45.87, and F5:288.18 ± 34.46 vs 307.54 ± 40.04. The digits on the right hand of both subjects had higher carotenoid scores than those on the left hands, even though subjects had different dominant hands. Subject A had higher skin carotenoid scores on the F3 and F2 digits for the right hand and F5 on the left hand. Subject B had higher skin carotenoid scores on F5 (right) and F1 (left) digits. Conclusions The variability due to hand, digit, and day were all greater than that of the 3 replicates within the digit-day for both volunteers. This indicates that data were not completely random across the readings when remeasuring the same finger. Different fingers displayed higher carotenoid scores for each volunteer. There is a need to conduct a larger study with more subjects and a range of skin tones to determine whether the reliability of measurements among digits of both hands is similar across the population. Funding Sources Indiana University.


2021 ◽  
Vol 9 (1) ◽  
pp. 8
Author(s):  
Murtadha AlAli ◽  
Nikolaos Silikas ◽  
Julian Satterthwaite

Objective: To evaluate and compare the surface roughness and gloss of a DMA-free composite and Bis-GMA-free composite with a DMA-based composite before and after toothbrushing simulation. Materials and Methods: Fifteen dimensionally standardised composite specimens of three nano-hybrid resin composites (Tetric EvoCeram, Admira Fusion, and Venus Diamond) were used. Five specimens from each composite were polished and then subjected to a toothbrushing simulator. Surface roughness (Ra) and gloss were measured before toothbrushing and after 5000, 10,000, 15,000, and 20,000 toothbrushing cycles. The data was analysed using 5 × 3 ANOVA to assess surface roughness and gloss values and pairwise comparisons in the form of Tukey post hoc tests were performed to interpret main effects. Results: For all tested materials, surface roughness increased, and gloss decreased after toothbrushing abrasion. Surface roughness (Ra) values ranged from 0.14 to 0.22 μm at baseline and increased to between 0.41 and 0.49 μm after 20,000 toothbrushing cycles. Gloss values ranged between 31.9 and 50.6 GU at baseline and between 5.1 and 19.5 GU after 20,000 toothbrushing cycles. The lowest initial Ra value was detected in Venus Diamond and the highest initial gloss value was detected in Tetric EvoCeram. Conclusions: Simulated toothbrushing abrasion led to an increase in surface roughness and a decrease in gloss for all tested materials. Venus Diamond had the smoothest surface and Tetric EvoCeram had the glossiest surface after polishing and following 20,000 cycles of toothbrushing abrasion. Admira Fusion demonstrated the roughest surface and had the lowest gloss values before and after toothbrushing abrasion.


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