which brain areas are involved in decision making
The Striatum Is a Decision-Making Hub. A February 2015 study, from the Okinawa Institute of Science and Technology (OIST) Graduate University in Japan, found that a key part of the brain involved in decision-making, called the striatum, appears to operate hierarchically within its three different sub-regions.
Location: Frontal and upper area of the cortexFunction: Carries out higher mental processes such as thinking, decision making, and planning. You use your frontal lobe nearly everyday. You use it to make decisions, such as what to eat or drink for breakfast in the morning, as well as for thinking or studying for a test.