Exploring the brain basis of joint action: co-ordination of actions, goals and intentions.

Humans are frequently confronted with goal-directed tasks that can not be accomplished alone, or that benefit from co-operation with other agents. The relatively new field of social cognitive neuroscience seeks to characterize functional neuroanatomical systems either specifically or preferentially engaged during such joint-action tasks. Based on neuroimaging experiments conducted on critical components of joint action, the current paper outlines the functional network upon which joint action is hypothesized to be dependant. This network includes brain areas likely to be involved in interpersonal co-ordination at the action, goal, and intentional levels. Experiments focusing specifically on joint-action situations similar to those encountered in real life are required to further specify this model.