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在青少年神经性厌食症中视觉身体尺寸估计:行为和神经生理学数据表明完整的视觉感知和有偏见的情感注意力
Hugo Romero Frausto1, Isabel Rahder2, Anke W Dalhoff2
1Department of Child and Adolescent Psychiatry, University Hospital Muenster, Schmeddingstraße 50, 48149, Muenster, Germany. Hugo.RomeroFrausto@ukmuenster.de.
Translational psychiatry
|October 18, 2024
概括
青少年厌食症神经症患者高估身体尺寸是由于偏见的情感注意力,而不是视觉感知缺陷. 这种自我参考的高估影响神经对身体图像的反应.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 心理学 心理学 心理学
背景情况:
- 身体形象障碍和身体的高估是神经性厌食症 (AN) 的关键症状.
- 这种高估的来源,无论是视觉感知缺陷还是其他因素,仍然不清楚.
研究的目的:
- 调查青少年限制性类型AN患者的身体尺寸高估是否源于视觉感知缺陷.
- 通过神经成像来探索AN体像干扰的神经基础.
主要方法:
- 36名青少年限制性类型的AN患者和42名健康对照人完成了尺度和描述性身体尺寸估计 (BSE) 任务.
- 在BSE期间,磁脑图 (MEG) 和电脑图 (EEG) 记录了计算机生成的身体图像.
- 分析的重点是自我参考和非自我参考任务中的行为表现和神经生理反应 (MEG/EEG).
主要成果:
- 与对照组不同的是,AN患者在自我参考的BSE任务中表现出身体尺寸高估.
- 在非自我参考的BSE任务或早期神经生理反应中没有观察到显著差异.
- 中间延迟神经活动 (从200毫秒开始) 在AN患者中显示出改变的反应,在自我参考任务中,体重不足的活性增加,体重超重的身体图像的活动减少.
结论:
- 青少年限制性类型的身体形象障碍与自我参考和偏见的情感注意力有关,而不是视觉感知缺陷.
- 改变神经对身体图像的处理,特别是在对自我相关刺激的反应中,有助于对AN的身体不满.
- 研究结果表明,在治疗AN时,需要针对情绪处理和自我感知的干预措施.
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