e-Nature positive emotions photography database e-NatPOEM: affectively rated nature images promoting positive emotions
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Affectively rated image databases have their main application in studies that require inducing distinct stimuli on subjects. Widespread databases are designed to cover a broad range of stimuli, from negative to positive valence, and relaxed to excited arousal. The availability of narrow domain databases, designed to cover and thoroughly analyze a few categories of images that induce a particular stimulus, is limited. We present a narrow domain affective database with positive images, named e-Nature Positive Emotions Photography Database e-NatPOEM, consisting of 433 high-quality images produced by professional and amateur photographers. A total of 739 participants evaluated them using a web-based tool to input valence-arousal values and a single word describing the evoked feeling. Ratings per image ranged from 36 to 108, median: 57; first/third quartiles: 56/59. 84% of the images presented valence > middle of the scale and arousal < middle of the scale. Words describing the images were classified into semantical groups, being predominant: Peace/tranquility 39% of all words, Beauty 23%, and Positive states 15%. e-NatPOEM is free and publicly available, it is a valid resource for affective research, and presents the potential for clinical use to assist positive emotions promotion.
Fabbro DD, Catissi G, Borba G, Moreira-Lima L, Hingst-Zaher E, Rosa J, et al. e-Nature positive emotions photography database e-NatPOEM: affectively rated nature images promoting positive emotions. Sci. Rep.. 2021 June;11:11696. doi:10.1038/s41598-021-91013-9.
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