Rates of abuse in body dysmorphic disorder and obsessive-compulsive disorder

Body dysmorphic disorder (BDD) continues to challenge professionals due to symptom severity, co-morbidity, suicidal ideation, and overvalued ideation. Despite the disorder's severity, little research exists. Clinical observation suggests a noteworthy history of abuse; therefore the present study investigated the reported rate of physical, sexual, and emotional abuse in BDD patients. OCD patients were chosen as a comparison group because BDD is considered to be an obsessive-compulsive spectrum disorder. A group survey design was used (N = 50 for each group). Results show significantly higher levels of emotional and sexual abuse in the BDD sample versus the OCD sample. No significant differences were found in physical abuse. Abuse may be a contributing factor in BDD, but not in OCD.     

The relationship of body dysmorphic disorder and eating disorders to obsessive-compulsive disorder

Body dysmorphic disorder (BDD) and eating disorders are body image disorders that have long been hypothesized to be related to obsessive-compulsive disorder (OCD). Available data suggest that BDD and eating disorders are often comorbid with OCD. Data from a variety of domains suggest that both BDD and eating disorders have many similarities with OCD and seem related to OCD. However, these disorders also differ from OCD in some ways. Additional research is needed on the relationship of BDD and eating disorders to OCD, including studies that directly compare them to OCD in a variety of domains, including phenomenology, family history, neurobiology, and etiology.     

Self-esteem in body dysmorphic disorder

Although studies indicate that poor body image is associated with poor self-esteem, few investigations have examined self-esteem in a clinical sample of individuals with body dysmorphic disorder (BDD). The present study examined self-esteem in 93 BDD patients and change in self-esteem with pharmacotherapy. Subjects completed the Rosenberg Self-Esteem Scale (RSES) and were assessed with other measures. Participants in a placebo-controlled fluoxetine trial completed measures at baseline and endpoint. The mean RSES score was approximately 1.5 SD units lower than means reported for nonclinical samples. Although poorer self-esteem was associated with more severe BDD and depression, as well as greater delusionality, the relationship between self-esteem and BDD severity was largely mediated by depressive symptoms. Self-esteem did not improve significantly more with fluoxetine than placebo, although it improved significantly more in fluoxetine responders than in nonresponders. It is unclear whether poor self-esteem predisposes to BDD and/or is a consequence of the disorder.     

Reality monitoring in patients with body dysmorphic disorder

Patients with body dysmorphic disorder (BDD) typically have very poor insight into their disorder. Their conviction in their ugliness is often of delusional intensity. Reality monitoring is the ability to distinguish in memory between things that one has imagined and things that one has perceived. Deficits in reality monitoring have been associated with the development of other delusional beliefs. Therefore, in the present study we investigated whether individuals with BDD (n = 20) demonstrate impairments in reality monitoring relative to individuals with obsessive-compulsive disorder (OCD; n = 20) and healthy controls (n = 20). This hypothesized impairment might predispose people with BDD to confuse memories of how they imagine themselves to appear (i.e., ugly) with memories of how they actually appear (i.e., normal). All participants completed a memory task assessing reality-monitoring ability for verbal stimuli. The BDD patients did not exhibit a reality-monitoring deficit despite elevated levels of focal delusionality. The results suggest that impairments in reality monitoring do not contribute to the development or maintenance of appearance-related beliefs in BDD.     

Local-global processing in obsessive-compulsive disorder and comorbid Tourette's syndrome

Neuropsychological and neuroimaging studies implicate attentional difficulties in obsessive-compulsive disorder (OCD), but results are inconsistent due possibly to sample heterogeneity and lack of control of comorbid disorders, such as Tourette's syndrome (TS). Nevertheless, it has been suggested that OCD symptomatology may be a result of over-focused attention at a local level. Therefore, this study aimed to examine the ability of OCD patients (pure and comorbid OCD + TS) to process local and global stimuli. Using a local-global paradigm, participants were required to respond to the directed level (local or global) of various stimuli. Results indicate that pure OCD participants were impaired on the global task, whereas comorbid OCD + TS participants had difficulty processing local information. Results are consistent with previously reported lateralisation anomalies and suggest that OCD negatively affects the ability to process hierarchically presented stimuli.     

Social anxiety in body dysmorphic disorder

Although clinical impressions suggest that patients with body dysmorphic disorder (BDD) experience distress in social situations, social anxiety in BDD has received little investigation. This study examined social anxiety in 81 patients with BDD and change in social anxiety with pharmacotherapy. Subjects completed the Social Avoidance and Distress Scale (SADS) and were assessed with measures of BDD symptomatology. Participants in a placebo-controlled fluoxetine trial completed measures at baseline and endpoint. The mean SADS score was 1.3 SD units higher than nonclinical sample means but consistent with other clinical sample means. Social anxiety was significantly correlated with BDD severity. Greater depressive symptoms as well as comorbid avoidant personality disorder, but not comorbid social phobia, were also associated with higher SADS scores. Social anxiety did not improve more with fluoxetine than placebo, yet it improved significantly more in fluoxetine responders than in nonresponders. Understanding social anxiety in BDD has implications for reducing rates of misdiagnosis and treatment dropout.     

Experiential avoidance in body dysmorphic disorder

Experiential avoidance (i.e., the attempt to avoid certain internal experiences including bodily sensations, thoughts, emotions, memories, and urges) has been studied in various psychological disorders. However, research examining experiential avoidance in individuals with body dysmorphic disorder (BDD) is limited and inconsistent. The present study compared experiential avoidance in individuals with primary BDD (n = 23) to healthy controls (n = 22). Standardized measures were used to assess baseline clinical characteristics as well as experiential avoidance. Compared to healthy controls, individuals with BDD presented with significantly greater experiential avoidance (p < .001, d = −2.51). In BDD, experiential avoidance was positively correlated with depressive symptoms (p < .01) and avoidant coping strategies (p < .01). Clinician sensitivity to experiential avoidance may serve to improve the course of treatment for BDD.     

Facial asymmetry detection in patients with body dysmorphic disorder

Cognitive-behavioral models of body dysmorphic disorder (BDD) propose that individuals with BDD may possess a better or more developed sense of aestheticality than do individuals without BDD. Evidence for this proposition, however, is limited. One perceptual process that could contribute to heightened aestheticality is the ability to detect differences in symmetry. In this experiment we tested whether individuals with BDD (n = 20), relative to individuals with obsessive compulsive disorder (OCD; n = 20) and healthy controls (n = 20), show an enhanced ability to detect differences in the symmetry of others’ faces, symmetry of dot arrays, and/or show a greater preference for symmetrical faces. Individuals with BDD were not significantly more accurate in detecting differences in facial symmetry or dot arrays relative to individuals with OCD and healthy controls. Individuals with OCD took longer to make facial symmetry judgments than did individuals in the other two groups. All participants, regardless of diagnostic group, preferred more symmetrical faces than nonsymmetrical ones. Taken together, our results do not support a heightened perceptual ability or evaluative preference for symmetry among individuals with BDD.     

Perceived teasing experiences in body dysmorphic disorder

Individuals with body dysmorphic disorder (BDD) are excessively concerned about imagined or slight defects in their appearance (e.g., asymmetrical facial features). Cognitive-behavioral models of BDD propose that several factors, including dysfunctional appearance-related beliefs and life experiences, such as teasing, contribute to the avoidance behaviors or rituals (e.g., mirror checking, grooming) characteristic of BDD. Previous research has demonstrated an association between perceived teasing and body dissatisfaction. In the current study, we examined whether individuals with BDD (n = 16) report to have been teased more often than do mentally healthy controls (n = 17). The group comprising individuals with BDD reported more appearance- and competency-related teasing than did control participants. This study provides preliminary evidence for the association between perceived teasing and BDD.     

The pathophysiology of body dysmorphic disorder

Body dysmorphic disorder (BDD) is an often severe and disabling condition, affecting up to 2% of the population. Despite its prevalence and clinical significance, very little is known about the pathophysiology of BDD. However, clues to its possible neurobiological substrates and abnormalities in information processing are starting to emerge. This article reviews findings from genetic, brain lesion, neuroimaging, neuropsychological, and psychopharmacological studies that have allowed us to develop a tentative model of the functional neuroanatomy of BDD. There is likely a complex interplay of dysfunctions in several brain networks underlying the pathophysiology of BDD. A combination of dysfunctions in frontal-subcortical circuits, temporal, parietal, and limbic structures, and possibly involving hemispheric imbalances in information processing, may produce both the characteristic symptoms and neurocognitive deficits seen in BDD. An improved understanding of the pathophysiology of BDD will be crucial to guide the development of better treatments.     

Perceptual and cognitive biases in individuals with body dysmorphic disorder symptoms

Given the extreme focus on perceived physical defects in body dysmorphic disorder (BDD), we expected that perceptual and cognitive biases related to physical appearance would be associated with BDD symptomology. To examine these hypotheses, participants (N=70) high and low in BDD symptoms completed tasks assessing visual perception and cognition. As expected, there were significant group differences in self-relevant, but not other-relevant, cognitive biases. Perceptual bias results were mixed, with some evidence indicating that individuals high (versus low) in BDD symptoms literally see themselves in a less positive light. Further, individuals high in BDD symptoms failed to demonstrate a normative self-enhancement bias. Overall, this research points to the importance of assessing both cognitive and perceptual biases associated with BDD symptoms, and suggests that visual perception may be influenced by non-visual factors.     

Severity of interpersonal problems in individuals with body dysmorphic disorder

Body dysmorphic disorder (BDD) is a relatively common and often severe disorder. Although individuals with BDD have markedly poor psychosocial functioning, the nature of interpersonal problems has been only minimally investigated. This study examined the severity, domains, and correlates of interpersonal problems in 51 individuals with BDD using the Inventory of Interpersonal Problems-64 (IIP-64) and other reliable and valid measures. Compared to norms for a U.S. community sample, individuals with DSM-IV BDD reported greater severity of interpersonal problems across most IIP-64 domains. BDD subjects' scores were most elevated on the Socially Inhibited and Nonassertive subscales. More severe BDD symptoms were significantly correlated with higher scores on the Socially Inhibited, Nonassertive, and Vindictive/Self-Centered subscales and with IIP-64 total score. In a logistic regression analysis, BDD severity and a personality disorder were independently associated with severity of interpersonal problems. These findings suggest that individuals with BDD have significant problems with interpersonal relationships, particularly in the areas of social inhibition and nonassertiveness.     

体像障碍的认知机制及治疗

体像障碍是一种对想象的或轻微外表缺陷的先占观念, 这种先占观念给个体带来极大的痛苦。其负性的自我认知框架, 影响个体对信息的选择、组织及评估。因此结合心理实验范式和神经生理综合分析体像障碍的认知过程, 对深化体像障碍认知机制和优化其认知行为治疗具有重要意义。     

Modular cognitive-behavioral therapy for body dysmorphic disorder

This study pilot tested a newly developed modular cognitive–behavioral therapy (CBT) treatment manual for body dysmorphic disorder (BDD). We tested feasibility, acceptability, and treatment outcome in a sample of 12 adults with primary BDD. Treatment was delivered in weekly individual sessions over 18 or 22 weeks. Standardized clinician ratings and self-report measures were used to assess BDD and related symptoms pre- and posttreatment and at 3- and 6-month follow-ups. At posttreatment, BDD and related symptoms (e.g., mood) were significantly improved. Treatment gains were maintained at follow-up. A relatively low drop-out rate, high patient satisfaction ratings, and patient feedback indicated that the treatment was highly acceptable to patients. To our knowledge, this represents the first test of a broadly applicable, individual psychosocial treatment for BDD.     

Personal and appearance-based rejection sensitivity in body dysmorphic disorder

Although rejection sensitivity may be an important feature of body dysmorphic disorder (BDD), no studies have examined rejection sensitivity in a clinical sample and compared types of rejection sensitivity in individuals with BDD. Personal and appearance-based rejection sensitivity scores in forty-six patients diagnosed with BDD were compared with published norms. Associations between rejection sensitivity, BDD severity, and other clinical variables were examined. Personal and appearance-based rejection sensitivity scores were 0.6 and 1.1 standard deviation units above published norms, respectively. Greater personal rejection sensitivity was associated with more severe BDD and depressive symptoms, poorer mental health, general health, and physical and social functioning. Greater appearance-based rejection sensitivity was associated with more severe BDD and depressive symptoms, and poorer general health. Appearance-based rejection sensitivity contributed more unique variance to BDD severity than personal rejection sensitivity did; however, personal rejection sensitivity contributed more unique variance to general health than appearance-based rejection sensitivity did.     

Neuroanatomical correlates and somatosensorial disturbances in body dysmorphic disorder

Body dysmorphic disorder (BDD) is a condition characterized by an intense preoccupation with an imagined or slight defect in physical appearance. Although there is a general consensus that psychosocial factors play a major role in the development of BDD, there is some evidence suggesting that an organic somatosensorial disturbance may also exist in this condition. Several psychiatric and neurological disorders, including the interparietal syndrome, Gertsman's syndrome, inferoparietal syndrome, phantom limb syndrome, genital retraction syndrome, panencephalitis, cerebrovascular syndromes, and pharyngeal streptococcia affecting the basal ganglia, can present with somatosensorial disturbances similar to BDD. The cerebral pathology in all these disorders appears to be localized in the parietal-occipital region, indicating that cerebral involvement may also be associated with BDD. An interdependence exists between cerebral regions through integrated neural networks that enable efficient processing of information. Disturbances in these association pathways can lead to an imbalance in the extensive cerebral loops. Therefore, it is possible that a defect in information-processing may play a role in the pathogenesis of BDD.     

The importance of aesthetics in body dysmorphic disorder

It is hypothesized that body dysmorphic disorder (BDD) patients are firstly more "aesthetical," an attribute much like being musical, which varies between different individuals. This results in a greater emotional response to more attractive individuals and placing greater value on the importance of appearance in their identity compared with healthy individuals. Some BDD patients may have greater aesthetic perceptual skills. This is manifested in their education or training in art and design. Secondly, BDD patients may have higher aesthetic standards than the rest of the population. Their failure to achieve an unrealistic aesthetic standard is at the core of BDD, leading to severe distress and handicap.