Research into team cognition has focused on how teams develop mental models and transactive memory systems. Mental models refer to the degree in which team members have similar cognitive understanding of the situation and performance goals which include shared representations of the task. Transactive memory systems relate to how knowledge is distributed among team members and retrieved in a coordinated fashion, the way that team member rely on knowledge that is possessed by other members and how knowledge sets are differentiated within a team. The emergence of team cognition is thought to impact team effectiveness because it can positively affect a team's behavioural process, motivational states, and performance.