Figure 4.
A. Percent correct choices in a memory task with three delay intervals. Monkeys with lesions of the dorsal prefrontal cortex (blue) perform like intact monkeys (green) when they must remember a sample object for 2 minutes. Monkeys with lesions of the anterior inferotemporal cortex (pink), a high-order visual area, show profound deficits in working memory, declining to chance levels of performance (dashed line) on this memory test at 120 s delays. B. Monkeys with lesions of the anterior inferotemporal cortex perform like intact monkeys when required to remember 2–5 objects. Monkey with dorsal prefrontal lesions, in contrast, show profound deficits, declining to chance performance when required to remember 4 or 5 objects. Adapted from Petrides [34].