Positive personality-trait-like individual differences in athletes from individual- and team sports and in non-athletes

The aim of this study was twofold: first, to replicate the positive association between sport participation and positive personality-trait-like individual differences (PTLID), and second to investigate whether athletes from individual and team sports would differ regarding positive PTLID. Participants of this study – 600 non-athletes and 600 athletes (280 practicing individual sports, 320 team sports) – completed a battery of questionnaires designed to assess five characteristics grouped under the umbrella term of positive PTLID, including: perseverance, positivity, resilience, self-esteem, and self-efficacy. A first MANOVA revealed that athletes scored systematically higher than non-athletes on positive PTLID. A second MANOVA showed that athletes from individual sports scored higher on positive PTLID than athletes from team sports. This could be explained by the individual responsibility that comes from performing alone and the need to possess greater enduring personal dispositions to succeed.     

Body mass index in female Spanish Olympic athletes

The purpose of this study was to examine the Body Mass Index of 180 female Spanish Olympic athletes (M age = 27.1 yr., SD = 5.9 yr.) who participate in presentation sports and nonpresentation sports, in comparison with 114 female nonathletes (M age = 20.7, SD = 1.5 yr.). Presentation sports athletes have a profile similar to that of a university student but by age with a lower Body Mass Index. In particular, rhythmic gymnasts have a lower weight and Body Mass Index than other athletes and nonathletes.     

体型知觉的准确性及其认知机制

体型知觉的准确性既和一般人群的心理健康水平有关,又对进食障碍的理解、预防和治疗具有重要意义。首先,进食障碍患者可能高估自己的身体,其体型知觉准确度可能受其BMI和症状的影响,并与患者预后相关。其次,通过和对他人体型估计的结果进行对比发现,对自己的体型的高估可能受到对自己身体态度因素的影响。第三,一般人群对自己的体型估计的结果往往不一致,这可能是体型知觉的不同量化方式所致。最后,体型知觉准确性的相关认知机制主要有收缩偏差、视觉适应和序列依赖效应。     

Body size perception and body satisfaction in restrained and unrestrained eaters.

In 21 restrained and 20 unrestrained eaters body size perception was measured using the video distortion technique (VDT), the image marking procedure (IMP) and the kinesthetic size estimating apparatus (KSEA). Body satisfaction was assessed by questionnaires (Body Shape Questionnaire, Dieting scale of the Eating Attitudes Test). Restrained eaters showed no systematic over- or underestimation of the body size but less perceptual accuracy (in VDT and KSEA). Furthermore, they were clearly more dissatisfied with their bodies than unrestrained eaters. Both findings were unrelated to each other. In both groups depressive mood or thoughts seemed to be associated with body dissatisfaction but not with body size misperception. Objective body measures (body mass index, body fat content) were not related to either body size perception or body satisfaction. The findings suggest that a perceptual uncertainty in regard to body size (either for visual or for somatosensory aspects) has already developed in restrained eaters, which may constitute a predisposition for more overt forms of body size misperception as found in eating disorder patients.     

A comparison of body size ideals, body dissatisfaction, and media influence between female track athletes, martial artists, and non-athletes

ObjectivesIn assessments of body image among athletes, there remains an important discrepancy between studies reporting, on one hand, increased body dissatisfaction among athletes and, on the other, lower body image concerns. In order to help resolve this contradiction, the present study examined body size ideals, body dissatisfaction, and media influence among female recreational athletes and non-athletes.MethodForty-one track athletes (a judged sport in which leanness is actively promoted), 47 women involved in Taek Won Do (a martial art with little or no emphasis on leanness), and 44 non-athletes completed self-report measures of ideal body size, body dissatisfaction, and media influence, and provided their demographic details.ResultsResults showed that, after controlling for participants' body mass index (BMI), there were no significant between-group differences in ideal body size. By contrast, track athletes reported the highest body dissatisfaction scores and the highest internalisation of athletic media messages. Results of a regression analysis showed that, for the total sample, participants' BMI and internalisation of athletic media messages predicted body dissatisfaction over-and-above involvement in the different sports.ConclusionThese results support the suggestion that women participating in leanness-promoting sports experience greater body dissatisfaction than women in other sports or non-athletes.     

Body posture and interpersonal perception in a dyadic interaction: A Big Two analysis

Body posture influences feelings about the self, but little is known about its impact on social cognition more generally. We apply the Big Two framework (Agency/Competence, Communion/Warmth) and study how body posture influences interpersonal perception in a dyadic interaction. In three experiments, we studied dyads with different body postures (Exps. 1 and 2: expanded/restricted; Exp. 3: expanded/neutral). Dyad members worked on a joint task, and rated self and other. Findings showed that participants in an expanded posture rated the self higher and the other lower on agency, whereas those in a submissive (or neutral) posture rated the self lower and the other higher on agency. In Experiment 2, participants in a submissive posture also rated their communion lower. Results are important both for the impact of body posture on interpersonal perception and for context effects in the relationship of Agency versus Communion ratings of self and others.     

Body configuration modulates the usage of local cues to direction in biological-motion perception

The presence of information in a visual display does not guarantee its use by the visual system. Studies of inversion effects in both face recognition and biological-motion perception have shown that the same information may be used by observers when it is presented in an upright display but not used when the display is inverted. In our study, we tested the inversion effect in scrambled biological-motion displays to investigate mechanisms that validate information contained in the local motion of a point-light walker. Using novel biological-motion stimuli that contained no configural cues to the direction in which a walker was facing, we found that manipulating the relative vertical location of the walker's feet significantly affected observers' performance on a direction-discrimination task. Our data demonstrate that, by themselves, local cues can almost unambiguously indicate the facing direction of the agent in biological-motion stimuli. Additionally, we document a noteworthy interaction between local and global information and offer a new explanation for the effect of local inversion in biological-motion perception.     

Culture and body image: Body perception and weight concern in young Asian and Caucasian British women

The comparatively lower prevalence of eating disorders among Asian and Afro-Caribbean than Caucasian women in the UK has often been attributed to cultural differences in pressures for slimness. However, there have been no attempts to evaluate cultural differences in ideals for female physique directly among women in the at risk age groups. In the present study, cultural influences on body image were evaluated by comparing the body size ideals, body image and dieting concerns in a sample of 274 young white and Asian British women. The results indicate that Asian women are less likely to describe themselves as too fat, were less dissatisfied with their body size, less likely to want to lose weight and less restrained. However, Asian women were slimmer than white women and, after controlling for the difference in body size, the effects were reduced. The hypothesis that any body satisfaction differences could be explained by differences in ideal body size between the two groups were not supported; Asian women favoured even slimmer ideal body sizes than white women. Alternative explanations in terms of cultural differences in evaluation of fatness are discussed.     

Body weight and body image among college women: perception, cognition, and affect

This study examined the relations between body weight and multiple parameters of body image in a nonclinical sample. Thirty-six female undergraduate students with stable body weights served as subjects; 12 were underweight, 12 were normal weight, and 12 were overweight, as determined using recent normative tables. Each subject responded to a general weight information questionnaire and to the Body-Self Relations Questionnaire, a standardized instrument assessing affective, cognitive, and behavioral components of appearance-related body image. A newly developed apparatus and procedure for estimating body size, the Body Image Detection Device, was utilized for perceptual and cognitive measures of body image. Each subject estimated and also subjectively appraised the width of her own body at five points and that of a realistic female mannequin. A caliper was used to record actual widths, and a standard laboratory scale and rule measured weight and height. The general finding of the study was that the perceptual, affective, and cognitive components of body image differed as a function of body weight, but the nature of the differences varied with the measure employed. The pattern of results for the perceptual measure suggest a cautious view of its reliability and validity. The multidimensional approach of our study, in marked contrast to earlier fractionated studies, offers a more integrated perspective on body image and provides new directions for future research.     

Body perception and meal type across age and gender on a Mediterranean island (Sardinia)

Our aim was to describe the differences in consumption of types of meal (complete/incomplete) eaten at lunch and dinner by gender in people of different age groups (children, young adults and seniors). In particular, we wanted to investigate the differences in choice of meal based on perceived weight. The study involved 516 participants, of which 156 were children (8-12y), 187 were young adults (19-30y) and 173 were elderly (65-90y). A cross-sectional analysis was carried out into the choice of meal type based on the different age groups and genders, on the three Body Mass Index categories (under, normal, overweight), on the three levels of self-perception (slim, normal and heavy) and on the degrees of perception of one’s body weight (underestimation, accurate estimation, overestimation). The food eaten was grouped into three types of daily meal: (a) incomplete, (b) complete lunch or dinner, (c) always complete. Differences emerged in the type of meal eaten according to age, gender and perceived weight. The results show gender differences in associations with meal type according to the way in which body mass is measured or perceived. The choice of complete/incomplete meal type changes according to whether real weight or perceived weight is considered.     

Body weight and weight perception among African and Caribbean university students: Correlation with depression symptoms

The aim of the study was to investigate the association between body weight, weight perception, and depressive symptoms in African and Caribbean university students. In a cross-sectional survey the total sample included 4 964 undergraduate university students (mean age 21.8, SD = 3.4, age range = 18-30 years) from five African and three Caribbean countries. Data on the students’ actual and perceived body weight, as well as depression symptoms, were collected. In logistic regression, perceived rather than measured overweight predicted depressive symptoms in male students with normal weight. For female students, perceived overweight predicted depression symptoms regardless of actual body weight. Male students who overestimated their body weight were at greater risk of depressive symptoms. Body weight self-perceptions appear to influence experience of mood disorder among African and Caribbean country students.     

Reference frames and haptic perception of orientation: Body and head tilt effects on the oblique effect

The aim of this study was to examine the effect of body and head tilts on the haptic oblique effect. This effect reflects the more accurate processing of vertical and horizontal orientations, relative to oblique orientations. Body or head tilts lead to a mismatch between egocentric and gravitational axes and indicate whether the haptic oblique effect is defined in an egocentric or a gravitational reference frame. The ability to reproduce principal (vertical and horizontal) and oblique orientations was studied in upright and tilted postures. Moreover, by controlling the deviation of the haptic subjective vertical provoked by postural tilt, the possible role of a subjective gravitational reference frame was tested. Results showed that the haptic reproduction of orientations was strongly affected by both the position of the body (Experiment 1) and the position of the head (Experiment 2). In particular, the classical haptic oblique effect observed in the upright posture disappeared in tilted conditions, mainly because of a decrease in the accuracy of the vertical and horizontal settings. The subjective vertical appeared to be the orientation reproduced the most accurately. These results suggest that the haptic oblique effect is not purely gravitationally or egocentrically defined but, rather, depends on a subjective gravitational reference frame that is tilted in a direction opposite to that of the head in tilted postures (Experiment 3).     

Provoked and unprovoked aggressiveness in athletes

In a factorial design, athletic involvement (no varsity sport, varsity noncontact sport, varsity contact sport) was varied with induced disposition (unprovoked, provoked). Under conditions of no provocation, no significant differences in aggressiveness were observed between nonathletes and athletes, nor between noncontact- and contact-sport athletes. In contrast, under conditions of provocation, nonathletes displayed more aggressiveness than athletes. Non-contact-sport athletes behaved significantly less aggressively than both nonathletes and contact-sport athletes. Contact-sport athletes failed to behave significantly less aggressively than nonathletes, however. The findings were explained as the result of an acquired superior ability in athletes to cope with provocation under competitive circumstances, which is partially counteracted in contact-sport athletes by their aggressiveness habits and disinhibition training.     

第一印象中面孔-人格知觉和语音-人格知觉的异同

人们会根据陌生人的面孔线索或语音线索迅速地对其人格特质进行主观推断而形成第一印象。面孔-人格知觉第一印象和语音-人格知觉第一印象在维度结构和内在机制上具有相似性;在对具体人格特质和维度的敏感性,以及具体的认知机制方面又具有各自的特异性。未来研究可以基于同一批被知觉者开展面孔-人格知觉第一印象和语音-人格知觉第一印象的直接比较,并着力探究二者的过程特点,以及人格知觉第一印象形成时面孔和语音知觉的跨模态整合效应。     

Plaudits and pitfalls in studying elite athletes

The study of elite athletes, because of their rarity, renders statistical power difficult to achieve, control groups difficult or impossible to find, and generalizability difficult to demonstrate. Alternative methods of analysis may be better suited to such study.     

Body ownership affects visual perception of object size by rescaling the visual representation of external space

Size perception is most often explained by a combination of cues derived from the visual system. However, this traditional cue approach neglects the role of the observer’s body beyond mere visual comparison. In a previous study, we used a full-body illusion to show that objects appear larger and farther away when participants experience a small artificial body as their own and that objects appear smaller and closer when they assume ownership of a large artificial body (“Barbie-doll illusion”; van der Hoort, Guterstam, & Ehrsson, PLoS ONE, 6(5), e20195, 2011). The first aim of the present study was to test the hypothesis that this own-body-size effect is distinct from the role of the seen body as a direct familiar-size cue. To this end, we developed a novel setup that allowed for occlusion of the artificial body during the presentation of test objects. Our results demonstrate that the feeling of ownership of an artificial body can alter the perceived sizes of objects without the need for a visible body. Second, we demonstrate that fixation shifts do not contribute to the own-body-size effect. Third, we show that the effect exists in both peri-personal space and distant extra-personal space. Finally, through a meta-analysis, we demonstrate that the own-body-size effect is independent of and adds to the classical visual familiar-size cue effect. Our results suggest that, by changing body size, the entire spatial layout rescales and new objects are now perceived according to this rescaling, without the need to see the body.