According to extended cognitivists, the mind’s location is only partly in the head. In addition, extended cognitivists have argued, the mind is located in parts of the world outside the body.
Moreover, the possibility of extended cognition suggests new lines of research within the domain of social cognition. If minds extend, the boundaries that define the units of social interaction become less certain. Perhaps minds overlap. If, as some extended cognitivists believe, features of the environment comprise parts of a cognitive system, then a single piece of the world might constitute a piece of distinct cognitive systems. More dramatically, perhaps parts of a mind of one individual may be located within the mind of another. Insofar as extended cognition can make such possibilities plausible, social psychologists will need to re-interpret the nature of social interaction, will need to re-examine how the motivations and emotions of a single agent can influence an extended cognitive system, and so on.