This folder contains the 282 images of the "VIPER" database (visually-induced pain empathy repository) along with ratings of 24 independent raters. Details are described in the following publication: Paulus, F.M., Müller-Pinzler, L., Walper, D., Marx, S., Hamschmidt, L., Rademacher, L., Krach, S., Einhäuser, W. Pain empathy but not surprise in response to unexpected action explains arousal related pupil dilation. The material can be used for scientific purposes, provided this reference is appropriately cited. Please check the download site to get the up-to-date reference at the time of your publication. Conditions are identified by the filename of the image, which consists of the number of the scenario (1-83) and the condition identifier: pain neut(ral) mism(atch) tool Note that the tool and the mismatch condition do not exist for all scenarios. The file ratings_viper.csv contains the ratings. Each image corresponds to a line, the columns are as follows: Column 1: Filename of the image Column 2: Scenario number Column 3: condition Columns 4 through 27: ratings of the 24 individuals (between 0 and 4, NaN if there was no rating recorded) The file thumbnail_viper.jpg provides an overview over all images in the database. For ease of download, the images are available as tar-archive (allImages_viper.tar) and as inidivual files.