Toh Wei Lin, Castle David J, Mountjoy Rachel L, Buchanan Ben, Farhall John, Rossell Susan L
Centre for Mental Health, Swinburne University, Australia; Cognitive Neuropsychiatry, Monash Alfred Psychiatry Research Centre, Alfred Hospital and Monash University School of Psychology and Psychiatry, Australia; Departments of Psychological Sciences and Psychiatry, University of Melbourne, Australia.
Departments of Psychological Sciences and Psychiatry, University of Melbourne, Australia; Department of Psychiatry, St. Vincent's Mental Health, Australia.
Compr Psychiatry. 2017 Aug;77:100-108. doi: 10.1016/j.comppsych.2017.06.004. Epub 2017 Jun 8.
In DSM-5, body dysmorphic disorder (BDD) was reclassified under the obsessive-compulsive and related disorders (OCRDs), but little is known about the nature of BDD beliefs. This study aimed to compare level of insight in BDD and consider related implications for DSM-5 classification.
Participants were 27 BDD, 19 obsessive-compulsive disorder (OCD), and 20 psychosis (SZ) participants as well as 42 non-clinical controls (NC), who completed the Brown Assessment of Beliefs Scale (BABS) and Peters Delusions Inventory (PDI).
For total (and most individual) BABS items, BDD and SZ participants scored significantly higher than OCD and NC participants. On the PDI, there were significant group differences in number of questions endorsed, with clinical groups scoring significantly higher than the NC group on dimensions of distress and preoccupation, but not conviction.
These findings suggest appearance-related concerns in BDD somewhat resemble delusions seen in psychosis (and not OCD), and convey important nosological and therapeutic implications.
在《精神疾病诊断与统计手册》第5版（DSM - 5）中，躯体变形障碍（BDD）被重新归类于强迫及相关障碍（OCRD）之下，但关于BDD信念的本质却知之甚少。本研究旨在比较BDD患者的洞察力水平，并思考其对DSM - 5分类的相关影响。
参与者包括27名BDD患者、19名强迫症（OCD）患者、20名精神病（SZ）患者以及42名非临床对照者（NC），他们完成了布朗信念评估量表（BABS）和彼得斯妄想量表（PDI）。
对于BABS的总分（以及大多数单项），BDD患者和SZ患者的得分显著高于OCD患者和NC参与者。在PDI上，认可问题的数量存在显著的组间差异，临床组在痛苦和专注维度上的得分显著高于NC组，但在坚信度维度上并非如此。
这些发现表明，BDD中与外貌相关的担忧在某种程度上类似于精神病（而非OCD）中所见的妄想，并传达了重要的疾病分类学和治疗意义。
