Figure 4

Illustration of the task stimuli and instructions. Non-target trials for both tasks (left panel), and target trials in the picture task (middle panel) and letter task (right panel). ERP data were collected only during non-target trials. These trials consisted of a picture with either a simple figure ground composition (top row) or a complex scene composition (bottom row) that was surrounded by six distracter letters. In the picture task, participants responded when the letter N was shown on the picture. In the letter task, participants responded when the letter N replaced five of the six distracters