11.   The key executive function of the prefrontal cortex, Dr. Goldman-Rakic argues, is working memory.

12.   The neocerebellum, a thin layer of cells atop the older brain region, evolved more recently along with the prefrontal cortex, Courchesne said.

13.   The lit-up areas appear to focus in the prefrontal cortex, the area directly behind the forehead and the part responsible for high intellectual thinking.

14.   The research says that after puberty, a pruning process takes place in the prefrontal cortex.

15.   The region in question, called the lateral prefrontal cortex, comes in pairs, one for each hemisphere of the brain.

16.   Within the prefrontal cortex, scientists have fine-tuned the neurological map even more.

17.   People who are more withdrawn tend to have more activity in their right side of their prefrontal cortex.

18.   By one theory, the prefrontal cortex is thought to be important in using emotions in making decisions.

19.   The area, called the prefrontal cortex, has long been known to affect social behavior.

20.   They had a dampening of activity in the prefrontal cortex, which lies near the front of the brain.