神经性厌食症少女扭曲身体形象的神经相关性:它与重度抑郁障碍有何不同?

IF 2 4区 心理学 Q2 PSYCHOLOGY Journal of Neuropsychology Pub Date : 2023-07-10 DOI:10.1111/jnp.12340
Yağmur Karakuş Aydos, Dicle Dövencioğlu, Kader Karlı Oğuz, Pınar Özdemir, Melis Pehlivantürk Kızılkan, Nuray Kanbur, Dilek Ünal, Kevser Nalbant, Füsun Çetin Çuhadaroğlu, Devrim Akdemir
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引用次数: 0

摘要

身体形象障碍与包括神经性厌食症(AN)在内的进食障碍密切相关。对身体形象的扭曲认知、不满意以及对体重和体型的专注往往是导致这些疾病发展和维持的关键因素。虽然身体形象障碍的病理生理机制尚未完全明了,但异常的生物过程可能会干扰身体形象的感知、认知和情感方面。本研究侧重于身体形象障碍的神经生物学方面。样本包括 12 名被诊断患有自体形象障碍的少女、9 名患有重度抑郁障碍(MDD)的少女和 10 名未被诊断患有精神病的少女(HC,健康对照组)。我们在功能性磁共振成像中采用了分块设计任务,使用参与者原始和扭曲的超重和体重不足图像。成像后,参与者对图像的相似度、满意度和焦虑程度进行评分。研究结果表明,超重图像会引起所有参与者的不满情绪和枕颞激活增加。然而,各组之间并无差异。此外,MDD 组和 HC 组的前额叶皮层和岛叶对体重过轻图像的激活较原始图像有所增加,而 AN 组的顶叶皮层、扣带回和海马旁皮层对相同刺激的激活有所增加。
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Neural correlates of distorted body images in adolescent girls with anorexia nervosa: How is it different from major depressive disorder?

Body image disturbance is closely linked to eating disorders including anorexia nervosa (AN). Distorted body image perception, dissatisfaction and preoccupation with weight and shape are often key factors in the development and maintenance of these disorders. Although the pathophysiological mechanism of body image disorder is not yet fully understood, aberrant biological processes may interfere with perceptive, cognitive and emotional aspects of body image. This study focuses on the neurobiological aspects of body image disturbance. The sample consisted of 12 adolescent girls diagnosed with AN, nine girls with major depressive disorder (MDD) and 10 without psychiatric diagnoses (HC, the healthy control group). We applied a block-design task in functional magnetic resonance imaging using participants' original and distorted overweight and underweight images. After imaging, the participants scored the images for resemblance, satisfaction and anxiety levels. The findings of this study demonstrate that overweight images elicited dissatisfaction and increased occipitotemporal activations across all participants. However, no difference was found between the groups. Furthermore, the MDD and HC groups showed increased activations in the prefrontal cortex and insula in response to underweight images compared to their original counterparts, whereas the AN group exhibited increased activations in the parietal cortex, cingulate gyrus and parahippocampal cortex in response to the same stimuli.

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来源期刊
Journal of Neuropsychology
Journal of Neuropsychology 医学-心理学
CiteScore
4.50
自引率
4.50%
发文量
34
审稿时长
>12 weeks
期刊介绍: The Journal of Neuropsychology publishes original contributions to scientific knowledge in neuropsychology including: • clinical and research studies with neurological, psychiatric and psychological patient populations in all age groups • behavioural or pharmacological treatment regimes • cognitive experimentation and neuroimaging • multidisciplinary approach embracing areas such as developmental psychology, neurology, psychiatry, physiology, endocrinology, pharmacology and imaging science The following types of paper are invited: • papers reporting original empirical investigations • theoretical papers; provided that these are sufficiently related to empirical data • review articles, which need not be exhaustive, but which should give an interpretation of the state of research in a given field and, where appropriate, identify its clinical implications • brief reports and comments • case reports • fast-track papers (included in the issue following acceptation) reaction and rebuttals (short reactions to publications in JNP followed by an invited rebuttal of the original authors) • special issues.
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