English: (A) Outline of visual search task. Animals were required to search for a target stimulus in a visual array. (B) When attention was externally captured by the target (the pop-out condition), information about attention was found first in parietal cortex and then frontal cortex (dashed lines). In contrast, when attention was internally directed (the visual search condition), information was found first in frontal cortex and then posterior cortex (solid lines).