Study title

Forty-four individuals were presented with 16 different images of faces under a desk lamp. The experiment consisted of three phases: 1. First, the participants rated how well they could see the person in front of them (scale: 1 = not at all well, 11 = very well). 2. They were then asked to evaluate various personality traits for each face under two different lamps. The personality traits were as follows: how irresponsible, selfish, environmentally friendly, cold, dishonest, wasteful, ruthless, or uninterested the person appeared to be. This was rated on a scale from 1 to 6, with dichotomous endpoints (e.g., 1 = cold, 6 = warm). 3. After all personality evaluations, a final assessment was made regarding how comfortable it was to work under the lamp’s light (scale: 1 = not at all comfortable, 11 = very comfortable). All evaluations were conducted under the same desk lamp. However, for half of the image evaluations, participants were told that the lamp was environmentally friendly, while for the other half, they were told it was a conventional incandescent lamp. This information was provided both verbally and via a label attached to the lamp’s base. The order of the lamp conditions was counterbalanced, meaning each image was assessed under both conditions. The three phases were repeated 16 times (16 images). After all the evaluations, participants completed two questionnaires: one on environmental concern (Environmental Concern; EC) and one on values (Value Orientation Scale; VOS). The environmental concern questionnaire was structured as follows: “How concerned are you that today’s ENVIRONMENTAL PROBLEMS will affect…?” Circle the option for each statement that best matches your view. (1 = Not at all concerned, 7 = Very concerned) All living beings; Me; All humans; Plants; My lifestyle; People close to me; Animals; My health; Future generations; Marine life; My future; My children The values questionnaire was structured as follows: “Imagine that these 13...