Now that we're in the CNS block, let's refresh a lil' bit about our amazing brains, and what God says about it ;)
Did you know, it is indeed very amazing how the surah of which the very first revelation to Rasulullah s.a.w. also mentions about the human cerebrum? :)
In surah Al-Alaq [96] ayat 15 & 16, it is described that the "front of the head" of Abu Jahal laknatullah is "lying & sinful". Why doesn't the Quran just mention that Abu Jahal himself is lying & sinful?
If you remember the anatomy of the brain inside the skull, near the front of the head is the PREFRONTAL AREA of the cerebrum.
This particular area functions in planning complex cognitive behavior, personality expression, decision making, and moderating social behavior.
In other words, it determines the abilities to differentiate among conflicting thoughts, determine good and bad, better and best, same and different, future consequences of current activities, working toward a defined goal, prediction of outcomes, expectation based on actions, and social control.
So yeah, when a person is lying or doing bad acts, it is actually also the prefrontal area that is mainly responsible.
Allahu akbar! :D