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Validation of the open biological negative image set for a Portuguese population: Comparing japanese and portuguese samples and an exploration of low-order visual properties of the stimuli
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Advisor(s)
Abstract(s)
Recently, Shirai and Watanabe Royal Society Open Science, 9(1), 211128 (2022) developed OBNIS (Open Biological Negative Image Set), a comprehensive database containing images (primarily animals but also fruits, mushrooms, and vegetables) that visually elicit disgust, fear, or neither. OBNIS was initially validated for a Japanese population. In this article, we
validated the color version of OBNIS for a Portuguese population. In study 1, the methodology of the original article was
used. This allowed direct comparisons between the Portuguese and Japanese populations. Aside from a few emotional classifcation mismatches between disgust, fear, or neither-related images, we found that arousal and valence relate distinctively
in both populations. In contrast to the Japanese sample, the Portuguese reported increased arousal for more positive valenced
stimuli, suggesting that OBNIS images elicit positive emotions in the Portuguese population. These results showed important
cross-cultural diferences regarding OBNIS. In study 2, a methodological change was introduced: instead of the three classifcation options used originally (fear, disgust, or neither), six basic emotions were used (fear, disgust, sadness, surprise,
anger, happiness), and a “neither” option, to confrm whether some of the originally “neither-related” images are associated
with positive emotions (happiness). Additionally, the low-order visual properties of images (luminosity, contrast, chromatic
complexity, and spatial frequency distribution) were explored due to their important role in emotion-related research. A
fourth image group associated with happiness was found in the Portuguese sample. Moreover, image groups present diferences regarding the low-order visual characteristics, which are correlated with arousal and valence ratings, highlighting the
importance of controlling such characteristics in emotion-related research.
Description
Keywords
Open biological negative image set Disgust Fear Happiness European Portuguese
Citation
Gomes, N., Benrós, M. F., & Semin, G. R. (2023). Validation of the open biological negative image set for a Portuguese population: Comparing Japanese and Portuguese samples and an exploration of low-order visual properties of the stimuli. Behavior Research Methods. https://doi.org/10.3758/s13428-023-02090-9
Publisher
Routledge