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Interoception and Facial Emotion Perception1315information processing. Higher cardiac interoceptive accuracy has further been related to a better recognition of negative emotional expressions (Fittipaldi et al., 2020; Terasawa et al., 2014), supporting the idea that an accurate representation of interoceptive information might also facilitate recognizing emotional states of others. The few studies examining the role of interoceptive sensibility in emotion processing have also mainly observed a facilitation of processing, such as faster emotion recognition (H%u00fcbner et al., 2021) and a more precise adaption to emotion probabilities (H%u00fcbner et al., 2021, 2022). Yet, links might be specific to different subcomponents of interoceptive sensibility (Desdentado et al., 2022) as well as depend on the task at hand (Ventura-Bort et al., 2021). Overall, individuals with a less accurate representation of interoceptive signals or a lower tendency to monitor them might not benefit from their integration in emotion recognition, as it might be the case in autism.Interoception in AutismAlterations in interoception have been associated with various physical, neurodevelopmental and mental health conditions (Bonaz et al., 2021; Khalsa et al., 2018), including autism (DuBois et al., 2016; Proff et al., 2022). Compared to non-autistic control samples, many studies have found a reduced interoceptive accuracy in adults (Failla et al., 2020; Garfinkel et al., 2016; Mul et al., 2018) and children (Failla et al., 2020; Nicholson et al., 2019) on the autism spectrum. Worse performance in interoceptive accuracy tasks could, however, not consistently be observed in both populations (Nicholson et al., 2019; Schauder et al., 2015), and also when using different tasks (Z. J. Williams et al., 2023). Studies examining the subjective experience of interoceptive signals (i.e., sensibility) are similarly inconsistent: studies have found increased sensibility (Garfinkel et al., 2016; Pickard et al., 2020), reduced sensibility (Mul et al., 2018) or no differences between individuals on the autism spectrum and non-autistic individuals (Butera et al., 2023). Different study populations as well as measurement tools might explain inconsistencies. Questionnaires focusing on the sensation of specific body signals, such as the Body Perception Questionnaire (Porges, 1993), might be reflective of the hypersensitivity to interoceptive signals that individuals on the autism spectrum can experience. This increased interoceptive sensibility has been found to strongly diverge from a decreased interoceptive accuracy in individuals on the autism spectrum, resulting in a relatively higher interoceptive trait prediction error (Garfinkel et al., 2016). In contrast, questionnaires focusing on a more global