Fig 1. The experimental flowchart. Participants were asked to complete a survey evaluating their experience after completing the choice task. Each trial began with a 1 second fixation period, followed by a 10 second image presentation stage. Participants were then required to select their preferred image and respond with a mouse after a 0.5 second mask. The four choice set conditions varied in the number of clear images, with 4, 8, 12, and 16 clear images in the respective conditions, and the remainder being mosaic treatment. Examples of clear and mosaic pictures are shown in panel D.