Background: In recent years, there has been an increased interest in studying sensory responses to stimuli in both clinical and non-clinical populations. Sensory reactivity has been linked to restrictive and repetitive behaviors. However, few instruments have been designed to assess the dimensions of sensory hyporeactivity and pain in the general population. Methods: The psychometric properties of the Pain and Sensitivity Reactivity Scale (PSRS) were analyzed in a non-clinical sample of 1122 adolescents and adults (mean age = 22.39, SD = 7.32). Results: The PSRS exhibited excellent psychometric properties, and three first-order factor models were confirmed. The sensory hyperreactivity subscales were highly correlated with the sensory over-responsivity scales, whereas a moderate correlation was found between sensory hyperreactivity measured via the PSRS and OCI-R subscales. Furthermore, sensory hyporeactivity and hyperreactivity appear to be moderately and positively correlated. Differences were observed as a function of gender and age. Conclusions: PSRS may be a reliable measure for analyzing pain and sensory reactivity in neurotypical populations. Future research should include clinical samples and multiple informants. [ABSTRACT FROM AUTHOR]

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