身体表征的分离:二分解释模型及其证据

身体表征是一种内部结构,它具有追踪身体状态并对其进行编码的功能。这种结构可以对身体进行错误的表征,并可以从身体中分离出来。来自海豹肢症与躯体失认症等方面的病例,证实部分身体畸形与脑损伤患者的身体表征存在分离;来自橡胶手错觉与全身错觉的实验证据,验证了健康个体身体表征分离的事实。基于上述证据,以身体图式和身体意象为二分维度的模型解释了身体表征的分离。未来的研究可以从神经心理学实验和虚拟现实技术着手,对身体表征的分离进行深入探究。     

身体意象的知觉测评和态度测评

身体意象的测评工作有利于研究者在不同研究领域针对具体问题采用适当的测量身体意象功能的方法。目前研究者主要从知觉和态度两个成分对身体意象概念进行建构,并据此对身体意象测评方法做出分类。在知觉测评方法中主要介绍了身体形态大小估计测量法,而态度测评方法分为外显和内隐的测量方法,内隐测量法中特别介绍了人格化内隐联想测验的进展。此外,在同时测量身体意象的知觉和态度两个成分的工具中回顾了人物刺激问卷法,以及国外最近开发的数码图像和计算机技术。避免身体意象测评工具的误用和提高此类工具在人群中的适用性是今后研究应注意的方法学问题。     

Anorexia nervosa and oversized experiences

In this paper, I discuss what I call the oversized experiences that anorexic patients suffer from. It has been known for some time that anorexic patients mentally picture their bodies as larger than reality. While this constitutes one kind of oversized experience, I claim there is another, less explored kind. This is an experience of the body as oversized in relation to the affordances of its environment. I discuss recent evidence suggesting anorexic patients exhibit distorted affordance perception. I then discuss how this distorted affordance perception also constitutes an oversized experience of the body. Along with sociocultural influences, I claim oversized experiences ground negative propositional attitudes regarding body size.     

Effects of Prenatal X-irradiation on Open-Field Behavior in Rats: Application of Randomized Fostering Technique and Mapping Results

Sprague-Dawley (SD) rats were given X-irradiation (150 R) on Day 17 of gestation. After birth, all male pups were pooled once and then assigned randomly to irradiated mothers and control mothers. Offspring were administered an open-field test at about 7 weeks of age. The analysis was performed on the basis of two approaches: In the per subject approach, individual subject data (aggregation across Day 2 through Day 4) were treated as the basic unit of statistical analysis. In the per litter approach, double aggregation (aggregation across Day 2 through Day 4 for each subject and aggregation across subjects within each litter) was used. The per subject approach was slightly more sensitive as to the treatment effect, but it induced a reduction in the magnitude of eta squared. A principal component analysis was performed using eta squared together with those of several reference groups. Results were plotted on a map constructed from component scores. The characteristics of behavior in X-irradiated rats were very similar to those of the earlier stage of trials in terms of the location on the map. The postnatal maternal effect on open-field behavior was not serious and was adequately negligible in practice. A new fostering procedure was proposed and its advantages discussed.     

“Made This Way for a Reason”: Body Satisfaction and Spirituality

Nine female participants shared their experiences of body satisfaction, spiritual beliefs, and the intersection of these domains. Using phenomenological inquiry, the authors identified 6 themes in participant interviews. The authors discuss ways in which this study extends previous research, in addition to providing suggestions for counseling practice.     

Gender Differences in Body Size Dissatisfaction Among Individuals With Low,Medium, or High Levels of Body Focus

The authors designed the present study to test whether women reported higher levels of body dissatisfaction than did men even when the 2 genders were matched on a measure of degree of body focus. Sixty undergraduates (30 men, 30 women) were screened on attention-to-body-shape scores and divided into high, medium, and low body-shape-focus groups. The participants also completed questionnaires that provided information on age, education, vocabulary ability, levels of depression, and body-image assessment. The groups did not differ (ps > .05) on age, education, vocabulary ability, or levels of depression. However, women in all 3 body-shape-focus categories indicated a larger discrepancy between their real vs. ideal body images (p < .01) than did the men. In the high-body-focus group, there was an 11:1 ratio between women's and men's reported real-ideal body-shape discrepancies. Women showed greater body dissatisfaction than did men, even when the genders were matched on a measure of body focus.     

肢体形状和肢体动作表征的早期发展

肢体是社会性信息的重要载体。研究肢体表征的早期发展对于揭示其肢体表征加工的内在机制, 进一步理解婴儿的社会性发展具有重要意义。从肢体形状和肢体动作两个方面来看, 已有研究主要考察了婴儿在处理肢体结构信息和运动信息时的表征方式, 并提出了婴儿肢体表征发展机制的两种理论。未来应进一步明确婴儿肢体表征的具体发展过程及关键期, 并通过脑成像技术探究生物运动偏好对于肢体表征的作用机制。     

女大学生体重知觉偏差及探因

以女性身体图形评定量表PFRS (the female Photographic Figure Rating Scale)作为刺激材料, 研究女大学生体重自我知觉与偏差, 以及女大学生对他人的体重知觉与偏差, 引入男性视角作为体重社会标准, 研究女大学生体重社会知觉与偏差。研究中要求女大学生选择准确代表自己胖瘦的图像, 选择自己理想胖瘦的图像, 选择他人眼里最有吸引力的图像, 估计PFRS真人照片图像体重值(假定图像中人物和自己身高相同), 并报告自己的实际体重和理想体重。研究要求男大学生选择最有吸引力的图像。在此基础上提出3种模型假设：镜像模型、泛化模型和相关模型, 进一步探索女大学生体重知觉偏差的原因。研究表明：女大学生体重自我知觉高估了对应真人图像的BMI; 女大学生对其他女性BMI知觉, 倾向于高估体重正常和偏瘦女性的BMI, 低估偏胖和肥胖女性的BMI; 女大学生体重的主观社会压力高于体重的实际社会压力, 对体重社会压力存在过度解读的倾向。女大学生对他人体重知觉偏差更有可能影响其体重自我知觉偏差; 认知评价不是造成女大学生知觉偏差的重要因素, 但两者关系需要进一步实证。     

Validation of self-ideal body size discrepancy as a measure of body dissatisfaction

Recently, body dissatisfaction has been conceptualized as the discrepancy between self and ideal body size estimates. This study evaluated the validity of this conceptualization using three methods for estimating actual and ideal body size: (a) the Body Image Assessment, (b) the Body Image Testing System, and (c) the Body Image Detection Device. The three body image assessment procedures were concurrently administered to a sample of 110 women diagnosed: bulimia nervosa (n=18),obese (n=34),and non-eating disorder (n=58).The Eating Disorder Inventory Body Dissatisfaction scale was also used to measure body dissatisfaction. Measures of self-ideal body size discrepancy were found to correlate more highly with measures of body dissatisfaction than were measures of current body size perception, ideal body size, body size estimation accuracy, or indices based on actual body size. Estimation of both current and ideal body size were found to significantly predict overall body dissatisfaction; thus, both self and ideal body size measures were found to be significant components in determining body size dissatisfaction. These data were interpreted as supportive of the conceptualization of body dissatisfaction as the discrepancy between self and ideal body size estimates.     

Does the body talk to the body? The relationship between different body representations while observing others’ body parts

The way human bodies are represented is central in everyday activities. The cognitive system must combine internal, visceral, and somatosensory, signals to external, visually driven information generated from the spatial placement of others’ bodies and the own body in the space. However, how different body representations covertly interact among them when observing human body parts is still unclear. Therefore, we investigated the implicit processing of body parts by manipulating either the body part stimuli’ posture (conditions a and b) or the participants’ response body posture (conditions c, d, and e) in healthy participants (N = 70) using a spatial compatibility task called Sidedness task. The task requires participants to judge the colour of a circle superimposed on a task-irrelevant body part picture. Responses are facilitated when the spatial side of the responding hand corresponds to the spatial code generated by the hand stimulus's position with respect to a body of reference. Results showed that the observation of the task-irrelevant body parts oriented participants’ attention and facilitated responses that were spatial compatible with the spatial position such body parts have within a configural representation of the body structure (i.e., Body Structural Representation) in all the five experimental conditions. Notably, the body part stimuli were mentally attached to the body according to the most comfortable and less awkward postures, following the anatomo-physiological constraints. Moreover, the pattern of the results was not influenced by manipulating the participants’ response postures, suggesting that the automatic and implicit coding of the body part stimuli does not rely on proprioceptive information about one's body (i.e., Body Schema). We propose that the human body's morphometry knowledge is enriched by biomechanical and anatomo-physiological information about the real body movement possibilities. Moreover, we discuss the importance of the automatic orienting of attention based on the sidedness within the context of imitational learning.     

Effects Of Negative Mood Induction On The Body Image Of Restrained Eaters

Abstract

Twenty restrained eaters (REs) and 20 unrestrained eaters (UREs) were studied via a distorting video image technique under three conditions: (1) baseline; (2) induction of negative mood (NM), (3) induction of positive mood (PM). Under each condition they were asked: (a) to estimate the actual width of their own body; (b) to focus attention on their bodily sensations and indicate how wide their body sensed and (c) to estimate the width of a water bottle. In addition, subjects answered a body shape questionnaire (BSQ). Main effects were found for the factors Group (REs gave higher estimates). Mood (estimates were higher after induction of negative mood), and Instruction (estimates were higher for sensed width of body). There were significant interaction effects for Group x Mood (estimations of REs were higher after induction of negative mood) and for Group x Mood x Instruction. Dissatisfaction with body shape (BSQ) was significantly correlated with the estimations of sensed body width after induction of negative mood.     

Body Dissatisfaction in College Women and Their Mothers: Cohort Effects, Developmental Effects, and the Influences of Body Size, Sexism, and the Thin Body Ideal

A study of body dissatisfaction, as measured by the Figure Rating Scale (Stunkard, Sorenson, & Schlusinger, 1983) and the Body Esteem Scale (Franzoi & Shields, 1984), in 75 college women and their mothers indicated that both daughters and mothers experienced body dissatisfaction. When body size was statistically controlled, either no difference was found between the groups or daughters were found to have greater body dissatisfaction than mothers. The results supported the hypotheses that (1) there are generational differences in body dissatisfaction, (2) both cohort and developmental effects contribute to these differences, and (3) that a developmental effect (mothers' greater body size) may obscure a cohort effect (daughters' greater exposure to the thin body ideal). Body dissatisfaction measures based on the mothers' retrospective ratings of how they felt at their daughters' age were consistent with these hypotheses. Relationships between body dissatisfaction and the Sociocultural Attitudes Toward Appearance Questionnaire (Heinberg, Thompson, & Stormer, 1995) were stronger and more frequent for daughters than for mothers and for the Internalization Scale than for the Awareness Scale. Relationships between the Ambivalent Sexism Inventory (Glick & Fiske, 2001) and body dissatisfaction were stronger for mothers than for daughters and for Benevolent Sexism than for Hostile Sexism.     

What Difference Can a Year Make? Changes in Functional and Aesthetic Body Satisfaction Among Male and Female Adolescents Over a Year

The current study explored changes in functional and aesthetic body satisfaction among Australian adolescents over a year. Data were collected from 1,342 Australian adolescents (567 males, 775 females) across two grade cohorts (Grades 8 and 10) at Wave 1 (W1; mean age = 13.7) and again 12 months later at Wave 2 (W2). Participants' functional and aesthetic body satisfaction, body mass index (BMI), and relative pubertal timing were measured. Body image change was explored across both grade cohort and gender, controlling for differences in BMI change and relative pubertal timing. Females reported lower overall (functional and aesthetic) body satisfaction than males. Participants reported higher functional and aesthetic body satisfaction at W1 than W2. Although both males and females reported a significant decrease in body satisfaction over the 12‐month period, this decrease was stronger among female participants. ^?Cohort differences were also found with older adolescents reporting lower functional body satisfaction.     

Effects of Dohsa‐hou relaxation on body awareness and psychological distress1

Relaxation is one of the most frequently used methods for treating psychological and physical problems. Many relaxation methods are effective treatments for various psychological problems. Body awareness could be an important component of body‐oriented psychological treatment. In this study, a self‐report measure for the assessment of body awareness was developed, and its psychometric characteristics and relationships with other psychological constructs were examined. The effect of Dohsa‐hou relaxation was investigated using the developed Body Awareness Scale (BAS). The results showed that the BAS had good internal consistency and test‐retest reliability, and that it was associated with related psychological constructs. Dohsa‐hou relaxation led to increased body awareness and decreased psychological distress. The BAS can be a useful instrument in the field of body‐oriented psychotherapy research and related treatment methods, and increased body awareness has an important role in Dohsa‐hou relaxation therapy.     

Effects of a physical exercise session on state body image: The influence of pre-experimental body dissatisfaction and concerns about weight and shape

The effects of a physical exercise session on state body image and mood were examined. In a cross-over design, participants were randomised to two groups starting either with physical exercise (PE; experimental condition) or with reading a newspaper (RN; control condition). Before and after PE and RN, participants (N = 65) rated their body dimensions using a digital photo distortion technique and indicated their attitudinal body image and mood. Participants’ judgements of their ‘felt’ body dimensions and attitudes toward their own body were affected differently by PE and RN, indicating that participants felt slightly slimmer and were more satisfied with their bodies after PE. Exercise-induced changes in body perception were greater, the higher the pre-experimental drive for thinness, body dissatisfaction and weight/shape concerns were. Especially in those participants with higher body image disturbances, physical exercise can have a reinforcing effect on immediate body image and mood improvement.     

Towards a Comprehensive Understanding of Body Image: Integrating Positive Body Image,Embodiment and Self-Compassion

Body image (BI) disturbance is a relevant factor in the etiology and treatment of eating disorders (ED). Although progress has been made in recent decades in understanding BI and its relationship with ED, the efficacy of BI disturbance prevention and intervention programs is still limited. In order to reach deeper understanding of BI disturbance and clarify the interactions between some protective and risk factors related to this construct, we carried out a literature review on some specific BI-related factors that so far have been analyzed independently. We specifically examined positive and negative BI; embodiment and its role in the development of positive and negative BI; and self-compassion as a protective factor that promotes positive embodiment (vs. disembodiment) and protection against body shame. We conclude that integrating the available evidence on these factors into BI models may be used to enhance our understanding of BI and improve the efficacy of prevention and intervention programs to help fight negative BI (by reducing body shame and disembodiment) and promote positive BI (by increasing self-compassion and positive embodiment).     

The effect of dohsa-hou on body consciousness in disabled sportsmen

In this study, body is considered to be the actual state of a person's existence and is not divided from the mind as the human organism. Body affects the self through body movement, and in this study the author considers that the clients' consciousness and feeling about their bodies has an effect upon their postural appearance and body movement. By applying dohsa training – a Japanese psycho-rehabilitation method – to disabled sportsmen with problems regarding standing balance, standing firm on the ground (fumishime in Japanese), unbalanced walking, and poor coordination of hands and legs during walking and running, their change of body consciousness, change of body posture and movement, and possible change of sports performance are investigated. As a result of training, the public aspect of their body consciousness changed the most by experiencing a new mode of motor action which was different from the one they experienced before the training; they gained a better balance of their body while walking and running, and they improved their sports record time. The results indicated that this training is a useful method for helping disabled sportsmen to improve their body consciousness, to gain control over both their own bodies and minds, and that it may be useful in devising training programs for them.     

Out of the body: embodiment and its vicissitudes

Body‐mind dualism and the consequent neglect of the body of the analyst can have important negative effects on the analytical process leading all too often to misinterpretations of the analysand's verbal and non‐verbal communications and to disturbances of analytical temporality. This is intensified when we are dealing with individuals where disembodiment and states of psychic deadness are central features. The paper explores the philosophical roots of the idea of a disembodied mind and the way in which this impacts our relationship with the world. While André Green's concept of the dead mother and disturbances in the sense of self‐agency have been held to play an important role in states of psychic deadness, I suggest that it is rather disturbances in the sense of body ownership and of the body image which are more central. The paper then discusses the particular kinds of countertransference that can be evoked in the analyst when we find ourselves dealing with this type of patient and suggests how we can use our embodied countertransference to become aware of and elaborate our own feelings of deadness in order to overcome the loss of temporality that is characteristic of such states. This is illustrated with reference to my work with a young man with a masochistic perversion and a severe disturbance of the body image with an accompanying profound sense of psychic deadness.     

Relations Between Body Image and Dieting Behaviors: An Examination of Gender Differences

Although links between body image and dieting behaviors have been established among women, little research is available to elucidate relations between these constructs among men. In the present study, we examined relations between men's and women's body image and healthy and unhealthy dieting behaviors. Two hundred and eight participants' (104 men, mean age = 25.88 years; 104 women, mean age = 23.87 years) body perceptions and body satisfaction were assessed using the Contour Drawing Rating Scale. Participants' dieting behaviors were assessed using the Weight Control Behavior Scale and weight status was assessed using body mass index (BMI). Analyses of relations among BMI, body satisfaction, and healthy dieting behaviors revealed a predictable pattern for both men and women; BMI was inversely related to body satisfaction and was positively related to healthy dieting behaviors. Body satisfaction was inversely related to both men's and women's healthy and unhealthy dieting behaviors. Further analyses of the relations between men's and women's body image and unhealthy dieting behaviors suggest different motives for men's and women's participation in these potentially health-compromising weight-management techniques. Results are discussed in terms of their contribution to researchers' understanding of the gendered nature of body image and dieting behaviors.     

Consequences of Repeated Critical Versus Neutral Body Checking in Women With High Shape or Weight Concern

Body checking is a repeated behavior conducted in an attempt to gain information about one’s shape, weight, size, or body composition. Body checking is associated with negative behavioral, emotional, and cognitive outcomes and may maintain body dissatisfaction and eating disorders. The precise function and consequences of body checking remain less well understood. Specifically, immediate and delayed impacts of repeated critical body checking (CBC) have not been determined. The current study randomly assigned 142 young women with high shape/weight concern to daily 10-min CBC, neutral body checking (NBC), or a non-body critical checking (NBCC) comparison condition, examining their immediate and delayed (one-week follow-up) effects on body satisfaction, self-esteem, and negative affect. Multilevel modeling and follow-up planned comparisons found that compared to NBCC, CBC participants’ body satisfaction and self-esteem immediately decreased, but negative affect improved from baseline to follow-up. Compared to CBC, NBC participants’ self-esteem and negative affect improved immediately, and their self-esteem improved over time compared to NBCC. Over time, all participants’ state body satisfaction improved, regardless of condition. Our findings suggest a 10-min CBC session may function differently than typical (harmful) in vivo body checking. However, reasons for this difference are unclear. Additional research is needed to distinguish (harmful) in vivo body checking from CBC procedures such as this and other mirror exposure interventions. Research is needed to examine the effects of varying CBC duration and instructions during body exposure to further clarify mechanisms of change during body exposures.