Interoception has been the subject of renewed interest over the past 2 decades. The involvement of interoception in a variety of fundamental human abilities (e.g., decision-making and emotional regulation) has led to the hypothesis that interoception is a central transdiagnostic process that causes and maintains mental disorders and physical diseases. However, interoception has been inconsistently defined and conceptualized. In the first part of this article, we argue that the widespread practice of defining interoception as the processing of signals originating from within the body and limiting it to specific physiological pathways (lamina I spinothalamic afferents) is problematic. This is because, in humans, the processing of internal states is underpinned by other physiological pathways generally assigned to the somatosensory system. In the second part, we explain that the consensual dimensions of interoception are empirically detached from existing measures, the latter of which capture loosely related phenomena. This is detrimental to the replicability of findings across measures and the validity of interpretations. In the general discussion, we discuss the main insights of the current analysis and suggest a more refined way to define interoception in humans and conceptualize its underlying dimensions.

中文翻译：

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人类内感受的定义和测量的差异：全面讨论和建议的前进方向。

在过去的二十年里，内感受一直是人们重新关注的话题。内感受参与多种人类基本能力（例如，决策和情绪调节），导致人们假设内感受是导致和维持精神障碍和身体疾病的核心跨诊断过程。然而，内感受的定义和概念化并不一致。在本文的第一部分中，我们认为，将内感受定义为对源自体内的信号的处理并将其限制于特定的生理通路（脊髓丘脑传入神经层）的广泛做法是有问题的。这是因为，在人类中，内部状态的处理是由通常分配给体感系统的其他生理途径支撑的。在第二部分中，我们解释说，内感受的共识维度在经验上与现有措施分离，后者捕捉松散相关的现象。这不利于跨测量结果的可复制性和解释的有效性。在一般性讨论中，我们讨论了当前分析的主要见解，并提出了一种更精确的方法来定义人类的内感受并概念化其基本维度。