Giummarra Melita J, Bradshaw John L, Hilti Leonie M, Nicholls Michael E R, Brugger Peter
Experimental Neuropsychology Research Unit, School of Psychology and Psychiatry, Monash University, Clayton, Victoria, South Australia, Australia.
Cogn Behav Neurol. 2012 Mar;25(1):34-41. doi: 10.1097/WNN.0b013e318249865a.
Body incongruity in body integrity identity disorder (BIID) manifests in the desire to have a healthy limb amputated. We describe a variant of the disorder: the desire to become paralyzed (paralysis-BIID).
Sixteen otherwise healthy participants, recruited through Internet-based forums, websites, or word of mouth, completed questionnaires about details of their desire and accompanying symptoms.
Onset of the desire for paralysis typically preceded puberty. All participants indicated a specific level for desired spinal cord injury. All participants simulated paralysis through mental imagery or physical pretending, and 9 (56%) reported erotic interest in paraplegia and/or disability. Our key new finding was that 37.5% of paralysis-BIID participants were women, compared with 4.4% women in a sample of 68 individuals with amputation-BIID.
BIID reflects a disunity between self and body, usually with a prominent sexual component. Sex-related differences are emerging: unlike men, a higher proportion of women desire paralysis than desire amputation, and, while men typically seek unilateral amputation, women typically seek bilateral amputation. We propose that these sex-related differences in BIID manifestation may relate to sex differences in cerebral lateralization, or to disruption of representation and/or processing of body-related information in right-hemisphere frontoparietal networks.
身体完整性认同障碍（BIID）中的身体不一致表现为渴望截去健康肢体。我们描述了该障碍的一种变体：渴望瘫痪（瘫痪型BIID）。
通过网络论坛、网站或口口相传招募了16名其他方面健康的参与者，他们完成了关于其渴望细节及伴随症状的问卷。
对瘫痪的渴望通常在青春期之前就已出现。所有参与者都指出了期望的脊髓损伤具体程度。所有参与者通过心理意象或身体假装来模拟瘫痪，9人（56%）报告对截瘫和/或残疾有性方面的兴趣。我们的关键新发现是，瘫痪型BIID参与者中有37.5%为女性，而在68名截肢型BIID个体的样本中女性占4.4%。
BIID反映了自我与身体之间的不统一，通常带有明显的性成分。与性别相关的差异正在显现：与男性不同，渴望瘫痪的女性比例高于渴望截肢的女性，而且，男性通常寻求单侧截肢，而女性通常寻求双侧截肢。我们提出，BIID表现中这些与性别相关的差异可能与大脑半球偏侧化的性别差异有关，或者与右半球额顶叶网络中身体相关信息的表征和/或处理受到干扰有关。
