The human brain is a very complex and interesting organ in the human body, it is so

interesting that there have been extreme amounts of research by scientists studying the role that

the brain plays in cognitive activity.

The brain has three basic units that are all responsible for its

own distinct functional role of the body; brain and spinal cord are the two main structures of the

central nervous system, the three units of the brain are the hindbrain, midbrain, and the forebrain.

With each region of the brain, there are specific ones that have their main roles that help guide

cognitive functions.

The brain helps humans to organize, retrieve, make sense out of the

information we process every day with the use of the various regions of our brain that work

together as well as independently.

Phineas Gage’s brain injury was very traumatic and affected

his cognitive functions which to this day is used in vast amounts of research into the brain and

how it functions.