What part of the brain controls common sense - the cerebrum, cerebellum, or the brain stem?
1 Answer
If you mean by "common sense"the way you appreciate and/or interpret things or situations, then it is most certainly the Cerebrum...
Explanation:
What you describe is a cognitive process, and that is done in the Cerebrum (more specifically the Frontal Lobe(s))
Where the Cerebrum is the Bridge of the ship, where the Captain resides, makes decisions and gives the orders, the Cerebellum is the Engine Room: it basically is a highly automated centre where all muscle-coordination is stored and activated.
Whether you play guitar, ride a bicycle, tie your shoelaces, etc.: Your Cerebrum cannot be involved in the finer niceties of which finger (or other part of the body) does what, it doesn't have the time...
It simply gives an instruction to the Cerebellum to get on with it.
The Brain Stem: acts as a gateway for information flowing between the brain and the rest of the body. Is also involved in control of (semi-)autonome functions such as breathing, blood pressure, heart-rate etc....
