Interoception, the perception of the body's internal state, contributes to numerous aspects of higher-order cognition. Several theories suggest a causal role for atypical interoception in specific psychiatric disorders, including a recent claim that atypical interoception represents a transdiagnostic impairment across disorders characterized by reduced perception of one's own emotion (alexithymia). Such theories are supported predominantly by evidence from only one interoceptive domain (cardiac); however, evidence of domain-specific interoceptive ability highlights the need to assess interoception in noncardiac domains. Using novel interoceptive tasks, we demonstrate that individuals high in alexithymic traits show a reduced propensity to utilize interoceptive cues to gauge respiratory output (Experiment 1), reduced accuracy on tasks of muscular effort (Experiment 2), and taste sensitivity (Experiment 3), unrelated to any co-occurring autism, depression, or anxiety. Results suggest that alexithymia reflects a multidomain, multidimensional failure of interoception, which is consistent with theories suggesting that atypical interoception may underpin both symptom commonalities between psychiatric disorders and heterogeneity within disorders. (PsycINFO Database Record

中文翻译：

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头疼症与一种多域，多维的感知力失败有关：来自新颖测试的证据。

对身体内部状态的感知，对感知（interoception）有助于高阶认知的许多方面。几种理论表明非典型性互感在特定的精神疾病中具有因果作用，其中包括最近的一项主张，即非典型性互感代表跨疾病的跨诊断性损害，这些疾病的特征在于对自身情绪的感知减少（智力低下）。此类理论主要受到仅来自一个互感域（心脏）的证据的支持。但是，特定领域的感知能力的证据突显了评估非心脏区域的感知能力的需要。通过使用新颖的侦听任务，我们证明了具有高度无运动障碍特征的人显示出减少使用侦听线索来测量呼吸输出的倾向（实验1），与任何同时发生的自闭症，抑郁症或焦虑症无关的肌肉力量（实验2）和味觉敏感性（实验3）的准确性降低。结果表明，运动障碍症反映了一种多领域，多维的接受感知失败，这与理论表明，非典型的接受感知可能是精神疾病之间的症状共性和疾病异质性的基础。（PsycINFO数据库记录 这与理论暗示非典型的互感可能支持精神障碍之间的症状共性和障碍内的异质性的理论是一致的。（PsycINFO数据库记录 这与理论暗示非典型的互感可能支持精神障碍之间的症状共性和障碍内的异质性的理论是一致的。（PsycINFO数据库记录