Dual-System Theory

The human brain, when an individual arrives at a decision point, is divided into two easily distinctive systems, called System 1 and System 2:

  • System 1 works autonomously and quickly and requires minimal control effort. In other words, it is our subconscious. Also, this system is affected by emotions, prejudices and previous experiences.
  • On the other hand, System 2 takes action when we make decisions, in which the brain needs to process more complex information. It requires the user’s effort and attention and is interwoven with selection and concentration.