共查询到20条相似文献,搜索用时 31 毫秒
1.
Born to adapt, but not in your dreams 总被引:1,自引:1,他引:0
The brain adapts to changes that take place in the body. Deprivation of input results in size reduction of cortical representations, whereas an increase in input results in an increase of representational space. Amputation forms one of the most dramatic disturbances of the integrity of the body. The brain adapts in many ways to this breakdown of the afferent–efferent equilibrium. However, almost all studies focus on the sensorimotor consequences. It is not known whether adaptation takes place also at other “levels” in the system. The present study addresses the question whether amputees dream about their intact body, as before the amputation, or about the body after the amputation and whether the dream content was a function of time since the amputation and type of amputation. The results show that the majority of the dreamers reported dreams about their intact body although the mean time that elapsed since the amputation was twelve years. There is no clear relation with the type of amputation. The results give modest evidence for the existence of a basic neural representation of the body that is, at least, partly genetically determined and by this relatively insensitive for changes in the sensory input. 相似文献
2.
The distinction between the body schema and the body image has become the stock in trade of much recent work in cognitive neuroscience and philosophy. Yet little is known about the interactions between these two types of body representations. We need to account not only for their dissociations in rare cases, but also for their convergence most of the time. Indeed in our everyday life the body we perceive does not conflict with the body we act with. Are the body image and the body schema then somehow reshaping each other or are they relatively independent and do they only happen to be congruent? On the basis of the study of bodily hallucinations, we consider which model can best account for the body schema/body image interactions. 相似文献
3.
《Body image》2014,11(1):43-50
This study examined the associations of different socio-demographic and psychological factors with attitudes towards obesity. Individuals with different weight status (N = 2436) were drawn from an annual population-based survey in Sweden, and data on attitudes towards obesity (ATOP) and predictor variables were assessed in 2008. The strongest predictor of ATOP was controllability beliefs about obesity (β = 0.83). Thus, greater controllability beliefs about obesity predicted more negative attitudes. Sex and weight satisfaction were also independently associated with ATOP. However, there was no, or only a weak, association between weight satisfaction and ATOP among individuals with normal weight or overweight. And the higher the weight satisfactions of individuals with obesity, the more positive were their attitudes. It seems that stigma-reduction strategies in the general public should address the uncontrollable factors in the aetiology of obesity. However, more research is needed to understand the underlying causes of people's attitudes towards obesity. 相似文献
4.
《Quarterly journal of experimental psychology (2006)》2013,66(6):1124-1137
In two experiments, the extent to which mental body representations contain spatial information was examined. Participants were asked to compare distances between various body parts. Similar to what happens when people compare distances on a real visual stimulus, they were faster as the distance differences between body parts became larger (Experiment 1), and this effect could not (only) be explained by the crossing of major bodily categories (umbilicus to knee vs. knee to ankle; Experiment 2). In addition, participants also performed simple animate/inanimate verification on a set of nouns. The nouns describing animate items were names of body parts. A spatial priming effect was found: Verification was faster for body part items preceded by body parts in close spatial proximity. This suggests automatic activation of spatial body information. Taken together, results from the distance comparison task and the property verification task showed that mental body representations contain both categorical and more metric spatial information. These findings are further discussed in terms of recent embodied cognition theories. 相似文献
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6.
This study addresses the relation between lexico-semantic body knowledge (i.e., body semantics) and spatial body representation (i.e., structural body representation) by analyzing naming performances as a function of body structural topography. One hundred and forty-one children ranging from 5 years 2 months to 10 years 5 months old were asked to provide a lexical label for isolated body part pictures. We compared the children’s naming performances according to the location of the body parts (body parts vs. head features and also upper vs. lower limbs) or to their involvement in motor skills (distal segments, joints, and broader body parts). The results showed that the children’s naming performance was better for facial body parts than for other body parts. Furthermore, it was found that the naming of body parts was better for body parts related to action. These findings suggest that the development of a spatial body representation shapes the elaboration of semantic body representation processing. Moreover, this influence was not limited to younger children. In our discussion of these results, we focus on the important role of action in the development of body representations and semantic organization. 相似文献
7.
The measurement of the body image construct has become increasingly multidimensional. New assessments are available to measure various facets of body image functioning: The Body Image Disturbance Questionnaire, Appearance Schemas Inventory-Revised, Body Image Coping Strategies Inventory, and Body Image Quality of Life Inventory. The present article reports normative data and acceptable internal reliabilities across seven completed investigations using these measures with female and male college students. Sex differences were examined and found, as expected, for most of the measures. In addition, a study evaluated an undetermined but essential psychometric property of these facets of the construct—their test–retest reliability. In a sample of 107 college students, the 2-week stability of these measures was found to be acceptable. Several directions for future research with these assessments are identified. 相似文献
8.
Types of body representation and the sense of embodiment 总被引:2,自引:1,他引:2
Carruthers G 《Consciousness and cognition》2008,17(4):1302-1316
The sense of embodiment is vital for self recognition. An examination of anosognosia for hemiplegia—the inability to recognise that one is paralysed down one side of one’s body—suggests the existence of ‘online’ and ‘offline’ representations of the body. Online representations of the body are representations of the body as it is currently, are newly constructed moment by moment and are directly “plugged into” current perception of the body. In contrast, offline representations of the body are representations of what the body is usually like, are relatively stable and are constructed from online representations. This distinction is supported by an analysis of phantom limb—the feeling that an amputated limb is still present—phenomena. Initially it seems that the sense of embodiment may arise from either of these types of representation; however, an integrated representation of the body seems to be required. It is suggested information from vision and emotions is involved in generating these representations. A lack of access to online representations of the body does not necessarily lead to a loss in the sense of embodiment. An integrated offline representation of the body could account for the sense of embodiment and perform the functions attributed to this sense. 相似文献
9.
Society provides messages about how people should ideally look and previous research has indicated these messages, both the actual messages provided and the perception of the message, influence body image. Research into male body image has shown males are concerned with having a lean and muscular body and as such, may want to decrease fat and increase their muscles. This paper explored the influence of a range of messages from parents, peers, and the media on a number of different measures of 362 adolescent boys’ body image and body change strategies. Specifically, messages about shape, food, exercise, losing weight and increasing muscles were explored in relation to satisfaction with weight and muscles, and the use of strategies to decrease weight and increase muscles. The findings indicated that parental messages were the strongest influence on body image and that parents, the media, and to a lesser extent messages from male friends were the strongest predictors of body change strategies. 相似文献
10.
Body image importance and body dissatisfaction among indigenous Australian adolescents 总被引:2,自引:1,他引:1
Despite their elevated risk of health problems and a propensity to be more overweight or underweight relative to the other members of the Australian population, there has been no previous investigation of body image concerns among Indigenous Australians. In this study we investigated the level of body image importance and body image dissatisfaction among 19 rural Indigenous adolescents (7 males, 12 females) and 28 urban Indigenous adolescents (15 males and 13 females). Our hypotheses that there would be gender differences in body image importance and body image satisfaction were not generally supported. However, males placed more importance on muscle size and strength than females, and rural participants placed more importance on weight than urban participants. Comparison to existing data obtained from Caucasian adolescents suggested that Indigenous youth may be less concerned and dissatisfied with body weight and shape. These results are discussed in relation to findings from studies of non-Indigenous adolescents, and Indigenous health issues. The limitations of the current study and the need for further studies are also discussed. 相似文献
11.
Despite numerous measures of facets of the body image construct, no single assessment broadly measures a continuum of body image disturbance. Accordingly, this study developed the Body Image Disturbance Questionnaire (BIDQ), derived from the Body Dysmorphic Disorder Questionnaire. Participants were 220 college women and 75 college men who completed an online survey containing this new assessment and established measures of body image and psychosocial functioning. Results confirmed that the Body Image Disturbance Questionnaire was internally consistent and free of impression-management response bias. For both sexes, the measure converged appropriately with other body image indices (evaluation, affect, investment, and impact), was positively correlated with depression, social anxiety, and eating disturbance. Scores on this assessment also predicted psychosocial functioning above and beyond body dissatisfaction as a predictor. Greater body image disturbance was observed among women than men, among heavier than lighter women, and among White than African American women. Limitations and future research implications are discussed. 相似文献
12.
A specific model for eating disorder symptoms involving perfectionistic self-presentation and two different moderators (i.e., body image evaluation and body image investment) was tested. Participants completed measures of perfectionistic self-presentation, body image dysfunction, and eating disorder symptoms. Findings indicated that all three dimensions of perfectionistic self-presentation were associated with eating disorder symptoms. Results also showed that perfectionistic self-presentation predicted eating disorder symptoms in women who were dissatisfied with their bodies, but that it did not predict eating problems in women who liked their bodies and felt there was little or no discrepancy between their actual and ideal appearances. Body image investment did not moderate the relationship between perfectionistic self-presentation and eating disorder symptoms, suggesting that ego-involvement alone is insufficient to promote eating disturbance in the context of perfectionism. The importance of self-presentation components of perfectionism and specific body image difficulties in predicting eating disorder symptoms are discussed. 相似文献
13.
Despite numerous body size estimation studies, it cannot be concluded that the disturbance of body image in anorexia nervosa (AN) is specifically one of the visual body images.We adopted a visual imagery method, the Distance Comparison task, to enable across-population testing of differences in visual body image with respect to shape. Participants were asked to mentally scan across two body widths (e.g. hips and shoulders) and to decide as quickly as possible which one was longer or shorter. If the mental representation accessed to make such comparisons is visual, an inverse relation would be expected between RT and distance difference on the body to be judged (i.e. actual difference in size between the two body widths), with accuracy increasing with increasing distance difference. Females with high body shape concern (scoring high on the Body Shape Questionnaire: BSQ, n = 23) were compared to females with low body shape concern (scoring low on the BSQ, n = 19).RT and distance differences on the body demonstrated standard distance differences effects: RT increased and accuracy decreased with decreasing distance differences on the body. Groups differed with respect to accuracy, in that females high on body shape concern were significantly less accurate than females low on body shape concern when making evaluations involving small (?9 cm) differences, which implies a less appropriate visual image of the own body in the former group. With respect to the relation between RT and body distance difference, on the other hand, there were no differences between groups. We concluded that evaluations of own body size employ visual imagery and that the distance comparison task holds promise for the assessment of visual disturbances in body image in clinical populations. 相似文献
14.
Interoceptive sensitivity,body image dissatisfaction,and body awareness in healthy individuals 下载免费PDF全文
Relationships among interoceptive sensitivity (IS), body image dissatisfaction, body mass index (BMI), and self‐reported body awareness were investigated in a cross‐sectional study. Eighty‐two Norwegian high school students and 70 Hungarian undergraduate university students participated in the study. Subjects completed two questionnaires (Body Image Ideals Questionnaire – BIQ; Body Awareness Questionnaire – BAQ) followed by the assessment of interoceptive sensitivity using the Mental Tracking Method (MTM). An inverse, medium‐level relationship between body image dissatisfaction and IS was found in both the Norwegian and the Hungarian samples. The relationships between IS and self‐reported body awareness, and between body image dissatisfaction and BMI were uniformly non‐significant in both samples. Predictors of body image dissatisfaction were resting heart rate, gender, and IS in the regression analysis after controlling for BMI, age, and nationality. The negative relationship between IS and body image dissatisfaction described in patients with anorexia nervosa also exists in healthy individuals. There is no direct connection between IS and self‐reported body awareness. 相似文献
15.
The present study examined whether there are age-related differences in the ability to accurately monitor forgetting. Young and older adults studied a mixed list of categorized words, and later recalled items when cued with each category. They then estimated the number of additional items that they did not recall-a form of monitoring one's forgetting. Older adults exhibited impaired memory performance compared with young adults, but also accurately estimated they forgot more information than young adults. Both age groups were fairly accurate in predicting forgetting in terms of resolution, indicating that aging does not impair the ability to monitor forgetting. 相似文献
16.
Matthew R. Longo 《Quarterly journal of experimental psychology (2006)》2017,70(3):378-388
Delusions and misperceptions about the body are a conspicuous feature of numerous neurological and psychiatric conditions. In stark contrast to such pathological cases, the immediacy and familiarity of our ordinary experience of our body can make it seem as if our representation of our body is highly accurate, even infallible. Recent research has begun to demonstrate, however, that large and systematic distortions of body representation are a normal part of healthy cognition. Here, I describe this research, focusing on distortions of body representations underlying tactile distance perception and position sense. I also discuss evidence for distortions of higher-order body representations, such as the conscious body image. Finally, I will end with a discussion of the potential relations among different body representations and their distortions. 相似文献
17.
The present study supports and extends previous research on the developmental differences in women’s dreams across the lifespan. The participants included 75 Canadian women in each of 5 age groups from adolescence to old age including 12–17, 18–24, 25–39, 40–64, and 65–85, totaling 375 women. One dream per participant was scored by two independent judges using the method of content analysis. Trend analysis was used to determine the ontogenetic pattern of the dream content categories. Results demonstrated significant ontogenetic decreases (linear trends) for female and familiar characters, activities, aggression, and friendliness. These patterns of dream imagery reflect the waking developmental patterns as proposed by social theories and recognized features of aging as postulated by the continuity hypothesis. Limitations and suggestions for future research including the examining of developmental patterns in the dreams of males are discussed. 相似文献
18.
《Body image》2014,11(4):331-336
This study examined the moderating effect of body surveillance on the relationship between fat stereotype endorsement and body dissatisfaction in normal weight women. Participants (N = 225) completed online measures of fat stereotyping, body surveillance, body dissatisfaction, and internalized thin ideals. After accounting for thin ideals, body surveillance moderated the relationship between fat stereotypes and body dissatisfaction. Contrary to hypotheses, higher fat stereotype endorsement predicted lower body dissatisfaction in women with higher body surveillance. Conversely, higher fat stereotype endorsement predicted greater body dissatisfaction in women with lower body surveillance. Thus, endorsing fat stereotypes appears protective against body dissatisfaction in normal weight women who extensively engage in body surveillance. For women who hold fat stereotypes and report high body surveillance, we propose that downward appearance comparison may create a contrast between themselves and the people with overweight whom they denigrate, thus improving body dissatisfaction. 相似文献
19.
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. 相似文献
20.
Literature suggests that many young women hold negative perceptions of their sexual bodies and facial features. This may be related to deficits in mindfulness, manifested by rigid and automatic thoughts, feelings, and behavior about one's sexual body. The present study examined the relationships between the five factors of mindfulness measured by the Five Factor Mindfulness Questionnaire (FFMQ) and sexual body esteem, measured by the Sexual Attractiveness subscale of the Body Esteem Scale (BES) in 79 college women. A multiple regression was performed to examine the relationship between sexual body esteem and the factors of mindfulness. The Observing and Describing subscales were significantly and positively predictive of sexual body esteem while Non-reactivity to Inner Experience was significantly and negatively predictive of sexual body esteem. This relationship may have implications for future research and clinical practice. 相似文献