Interoception in Anorexia Nervosa: Exploring Associations With Alexithymia and Autistic Traits
Interoception in Anorexia Nervosa: Exploring Associations With Alexithymia and Autistic Traits
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DOI：
10.3389/fpsyt.2020.00064
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发表时间：
2020-02-21
影响因子：
4.7
通讯作者：
Tchanturia, Kate
中科院分区：
文献类型：
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作者：
Kinnaird, Emma;Stewart, Catherine;Tchanturia, Kate
背景以往的研究是否内感受改变神经性厌食症（AN）使用心跳跟踪任务产生了不一致的结果。然而，没有以前的研究已经检查是否interoception与述情障碍和自闭症特征在AN，条件是更普遍的，在这个人群中，并认为是在这个任务中的性能相关。本研究的目的是探讨是否在AN改变interoception与述情障碍和自闭症traits.MethodsWe评估interoception的准确性使用的心跳跟踪任务在n = 37人AN，和n = 37年龄和性别匹配的健康对照组（HC），并探讨在AN组内，如果interoception的准确性与自评述情障碍或自闭症traits.MethodsWe。我们还评估了自我报告的内感受能力，以及主观与实际表现之间的关系。结果与HC组相比，AN组的心跳跟踪任务表现没有改变。然而，在AN组的任务表现的信心评级较低的HC组。与HC组不同，AN组的置信度与任务表现无关。在控制了焦虑和抑郁的潜在混杂因素后，在AN组内，内感受准确性、述情障碍和自闭症特征之间没有关系。有信心评级和疾病的严重程度之间的关系在AN group.ConclusionThe结果发现，在人与AN相比，HC的心跳跟踪任务的性能之间没有差异。AN的任务表现、述情障碍与自闭症特征之间无相关性。结果确实表明，AN患者表现出对任务表现的信心降低，并且与HC相比，他们可能缺乏对这种表现的洞察力。研究结果进行了讨论的背景下，潜在的显着局限性的心跳跟踪任务，为今后的研究在AN内感受的建议。
BackgroundPrevious research on whether interoception is altered in anorexia nervosa (AN) using the heartbeat tracking task has yielded inconsistent results. However, no previous research has examined whether interoception is associated with alexithymia and autistic traits in AN, conditions which are more prevalent in this population and thought to be related to performance in this task. The aim of this study was to explore whether altered interoception in AN is associated with alexithymia and autistic traits.MethodsWe assessed interoceptive accuracy using the heartbeat tracking task in n = 37 people with AN, and n = 37 age and gender matched healthy controls (HC), and explored within the AN group if interoceptive accuracy was related to self-rated alexithymia or autistic traits. We also assessed self-reported interoceptive ability, and the relationship between subjective and actual performance.ResultsHeartbeat tracking task performance was not found to be altered in the AN group compared to the HC group. However, confidence ratings in task performance in the AN group were lower compared to the HC group. Unlike the HC group, confidence ratings in the AN group did not correlate with task performance. Within the AN group there was no relationship between interoceptive accuracy, alexithymia, and autistic traits, after controlling for the potential confounders of anxiety and depression. There was a relationship between confidence ratings and illness severity in the AN group.ConclusionThe results found no differences between heartbeat tracking task performance in people with AN compared to HC. There was no association between task performance, alexithymia and autistic traits in AN. Results do suggest that people with AN exhibit lowered confidence in their task performance, and that they may lack insight into this performance compared to HC. The findings are discussed in the context of potential significant limitations of the heartbeat tracking task, with recommendations for future research into interoception in AN.