Only recently has the concept of decision fatigue as a form of mental exhaustion become a subject of psychological study— decision fatigue acknowledges that
- decisions take mental energy
- that any given person has only a certain amount of mental energy
- that each decision a person makes uses some of this limited resource, and
- once this resource is exhausted, decision making turns to avoidance—
choosing the least effortful action in every case regardless of possible outcomes.
A recent study (2011) looked at boards granting parole in Israel.