1.   Dr. Jonathan Cohen, a neuroscientist at Princeton, studies a part of the frontal cortex called the anterior cingulate, located behind the forehead.

2.   Finally, false memories were marked by more fireworks in the frontal cortex and cerebellum, which struggle to recall the context of an event.

3.   In humans, though, the dopamine signal is also sent to a higher brain region called the frontal cortex for more elaborate processing.

4.   Older people with age-related impairments to the frontal cortex do poorly on gambling tasks and, experiments show, are prone to believe misleading advertising.

5.   But the size of the frontal cortex as compared with the rest of the cerebral hemisphere barely differed among the top primates.

6.   Even though the relative size of the frontal cortex may not matter, it has clearly played a critical part in the ascent of Man, says Semendeferi.