Fig. 7: Human visual search task.
From: Differential patch-leaving behavior during probabilistic foraging in humans and gerbils
Diagonal sequence represents a trial. At the beginning of a session, the target object (here a blue circle) was introduced. The beginning of a trial was cued by a central fixation (1 s) followed by a blank (1 s). Next, the search display (i.e., patch) appeared. By navigating the mouse cursor to a target (red square with red dot at center in lower left), participants realized a reward capture. Upon such a capture, the collected target turned into a reward for 500 ms (euro-cent image) and then changed back to its previous appearance. An already collected target would not turn into a reward again if fixated again. With each reward capture, all items changed positions randomly. At any time, participants were able to switch to a new display by button-press.
