2.4. Intervention
The control group did not receive any media or other material. In the intervention group, following the initiation of the chemotherapy infusion procedure, a research team member provided a tablet (9.7 inches, 2048 × 1536 pixels) exclusively designated for the study and with the other functions restricted. The participant watched a 12-min video on the tablet in a private and comfortable environment, primarily within the room/bed where chemotherapy was administered.The video watched by the participant was randomly selected from four different options: Beauty, Emotions Up, Tranquility, and Miscellany. Each video consisted of 60 images pre-selected from the e-NatPOEM database [The 240 distinct images (60 for each video) were pre-selected from the e-NatPOEM according to the criteria below. The corresponding images can be found in Beauty: related to awe/fascination. Includes white and colorful birds, insects, flowers, and landscapes. Valence range: 6.9–7.8; Arousal range: 3.1–4.2.Emotions Up: related to joy and liveliness. Includes water, pale birds, colorful birds, sky, insects, and sea. Valence range: 5.8–8.0; Arousal range: 3.3–5.6.Tranquility: related to peace and calm. Includes water, sky, and sea. Valence range: 6.6–8.0; Arousal range: 2.8–4.2.Miscellany: includes water, trees, white birds, colorful birds, sky, flowers, insects, and landscapes. Valence range: 5.3–7.5; Arousal range: 3.0–6.1.It is worth emphasizing that both groups received identical standards of care and treatment throughout the study, adhering to the criteria set by the Joint Commission International [