Lucy Suchman's work on situated action at Xerox Labs was instrumental in popularizing the idea that an actor's understanding of how to perform work results from reflecting on interactions with the social and material (e.g. technology-mediated) situation in which she or he acts. More recent perspectives of situated cognition have focused on and draw from the concept of identity formation as people negotiate meaning through interactions within communities of practice. Situated cognition perspectives have been adopted in education, instructional design, online communities and artificial intelligence (see Brooks, Clancey). Grounded Cognition, concerned with the role of simulations and embodiment in cognition, encompasses Cognitive Linguistics, Situated Action, Simulation and Social Simulation theories. Research has contributed to the understanding of embodied language, memory, and the representation of knowledge.