Discover the ISSI database

The Interoceptive States Static Images (ISSI) is a validated database of 423 visual stimuli for the study of non-affective internal state recognition in others, freely available to other researchers. The database has been developed by INSULAB at Royal Holloway, University of London.

Eight actors were used to display various exemplars of both interoceptive states (e.g. cold, fatigue, pain, hunger) and control actions (e.g. jumping, waving, lifting, walking). The images went through a two-stage validation procedure, the first involving free-labelling and the second using multiple choice labelling and quality rating scales. Five scores were calculated for each stimulus, providing information about the quality and specificity of the depiction, as well as the extent to which labels matched the intended state/action. More information on the ISSI database can be found in the validation paper.

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