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Acknowledgements:We are grateful to Kaat Alaerts for providing the original stimuli and much useful advice concerning their generation, as well as Nicholas Holmes for advice concerning the bootstrapping analysis. RE was funded by a graduate teaching assistantship from Birkbeck, University of London and DY was funded by an ESRC Studentship. JC is supported by the Birmingham Fellows programme.
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AbstractOur movement kinematics provide useful cues about our affective states. Given that our experiences furnish models that help us to interpret our environment, and that a rich source of action experience comes from our own movements, the present study examined whether we use models of our own action kinematics to make judgments about the affective states of others. For example, relative to one's typical kinematics, anger is associated with fast movements. Therefore, the extent to which we perceive anger in others may be determined by the degree to which their movements are faster than our own typical movements. We related participants' walking kinematics in a neutral context to their judgments of the affective states conveyed by observed point-light walkers (PLWs). As predicted, we found a linear relationship between one's own walking kinematics and affective state judgments, such that faster participants rated slower emotions more intensely relative to their ratings for faster emotions. This relationship was absent when observing PLWs where differences in velocity between affective states were removed. These findings suggest that perception of affective states in others is predicted by one's own movement kinematics, with important implications for perception of, and interaction with, those who move differently.Keywords: Action perception; emotion; affective states; point-light walkers; expertise Public significance statement: The way that we move provides useful cues about our emotions. For example, we move more quickly than our average speed when we are feeling angry and more slowly when we are feeling sad. The present study shows that we make judgments about others' emotional expressions relative to how we move ourselves. To give an example, rather than everyone interpreting movements of a certain speed as angry, individuals may only think that others feel angry if these movements are faster than their own typical movement speed. Therefore, we are better placed to understand the emotions of others who tend to move more similarly to us. These findings have 3 important implications for our understanding of and interactions with clinical and cultural groups whose movements are dramatically different from our own.
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