Abstract
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.
Highlights
The perception that contact with nature provides harmony and balance to humans is ancient
In this article we present the e-Nature Positive Emotions Photography Database (e-NatPOEM) comprising 403 high-resolution (1600 × 1200 pixels) photographs focused on positive valence, and grouped into nine general categories: [1] Landscape, [2] Water, [3] Forest/woodland, [4] Pale Bird, [5] Colorful Bird, [6] Sky, [7] Flower, [8] Insects, and [9] Sea
We presented the e-Nature Positive Emotions Photography Database (e-NatPOEM) comprising 403 high-resolution photographs grouped into nine general categories: Landscape, Water, Forest/woodland, Pale Bird, Colorful Bird, Sky, Flower, Insects, and Sea
Summary
The perception that contact with nature provides harmony and balance to humans is ancient. After the industrial revolution, human societies became increasingly urban, with more than half of the world’s population living in urban a reas. People started moving progressively away from contemplative moments out in nature and from their potential physical, mental, and emotional benefits. The urban environment exposes people to many stressors leading to physical and mental illness, including cardiovascular disease, o besity, and burnout. The urban environment exposes people to many stressors leading to physical and mental illness, including cardiovascular disease, o besity, and burnout4,5 This impact on health has led to the need to understand and prevent the detrimental effects of living in urban a reas and explore whether a closer contact with nature may benefit the health of individuals living in such environments.
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