Table 1. An example of the experimental design.

Run 1	Run 2	Run 3	Run 4	Run 5	Run 6
Familiar targets; buildings	Unfamiliar targets; buildings	Familiar targets; objects	Unfamiliar targets; objects	Familiar targets; faces	Unfamiliar targets; faces

The experiment consisted of six runs. In each run ¼ of the trials were viewing trials (were participants watched a centrally presented picture), ¾ were tracking trials. Familiar and unfamiliar runs were intertwined. Presented stimuli throughout a run were either buildings, objects or faces. In a familiar trial both targets and distractors remained the same from trial to trial, whereas in an unfamiliar run target-identities changed from trial to trial. Familiar runs consisted of 96 trials, unfamiliar runs of 36 trials. These 6 runs were followed by a localizer task, in which the participant watched faces, buildings or objects.