Abstract

Interoceptive sensitivity involves focusing an individual's attention on internal bodily processes, such as gastrointestinal, cardiac, and respiratory sensations. This process is significant for both physical and mental health, as it relates to adaptive and emotional processes. Various questionnaires are available to assess interoceptive sensitivity, and the aim of this study was to analyze the psychometric properties of the short form of the Body Perception Questionnaire (BPQ-sf). A total of 276 adults aged between 18 and 77 years participated. The BPQ-sf, adapted by Cabrera and colleagues (2018), was used in an online version. The results demonstrate a second-order factor model with adequate fit indices ( chi(2)= 1568.90[985]; chi(2)/df = 1.59; RMSEA = .046[.042, .051], CFI = .96, TLI = .96) and satisfactory Cronbach's alpha (alpha > .80) and McDonald's omega (omega > .80) coefficients, considering the dimension of body awareness and autonomic reactivity, subdivided into supra-diaphragmatic and sub-diaphragmatic reactivity. These findings suggest that the BPQ-sf has valid and reliable psychometric properties, making it suitable for use in the Chilean context. It facilitates access to internal bodily states and allows the study of interoceptive sensitivity in relation to other cognitive and affective processes, such as anxiety, depression, and pain. Furthermore, it provides a foundation for developing instruments that could be useful in clinical settings.