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Chapter 126would result from discrepancies in expected and actual physiological states was recently elaborated in detail in a predictive coding framework (Gerrans & Murray, 2020), and currently seems the most agreed-upon explanation of biased perception of physiological responses in social anxiety. Although alterations in sensing bodily signals, including their potential underlying mechanism(s), have been described in the literature on autism and social anxiety, studies investigating the role of these alterations in processing others%u2019 emotions are scarce. There is only some evidence that (changes in) arousal levels in individuals on the autism spectrum would indeed be less strongly linked to sharing other emotions compared to controls (Dijkhuis et al., 2019; Mathersul et al., 2013). Reduced empathy in autism has further been associated with lower objectively-measured interoceptive accuracy (Mul et al., 2018), yet not consistently (Butera et al., 2023). Employment of More Naturalistic Stimuli in Facial Emotion Perception ResearchEven though humans are confronted with a broad variety of rich emotional facial expressions in daily life, research on facial emotion perception has mostly employed static images of exaggerated and posed stimuli (Kret, 2015). In order to gain more valid insights into processing others%u2019 emotions in a laboratory setting, novel stimulus sets with more naturalistic emotional expressions have recently become more popular (Dobs et al., 2018; Krumhuber et al., 2017). The advantage of their usage has already been demonstrated in several studies in the general population. For example, dynamic (versus static) facial displays emotion elicit stronger responses on multiple levels, including subjective reports (Krumhuber et al., 2013), physiological resonance (Rymarczyk et al., 2011), as well as neuronal responses (Schultz & Pilz, 2009). Dynamic information in facial emotion recognition seems to become particularly relevant when individuals are exposed to subtle and ambiguous displays (Ambadar et al., 2005; Krumhuber et al., 2013), whereas evidence for a potential advantage when exposed to prototypical facial expressions is inconsistent (see Sauter & Fischer, 2018). Dynamic information might, however, not facilitate processing for all observers of emotional facial expressions. Individuals on the autism spectrum do not seem to benefit from the addition of dynamic information in recognizing emotions,