The Synthetic Teammate project is conducting research on synthetic agents that can be integrated into team training simulations. Key challenges in advancing this technology are designing and implementing the agents so that the agents closely match human behavior across several cognitive capacities.  These  capacities include situation assessment, task behavior, language comprehension, and language generation. The initial application for the synthetic teammate research is an agent functioning as the pilot of an Unmanned Aerial Vehicle (UAV) within a synthetic task environment.  Another challenge is achieving a high enough level of performance from the agent that does not detract from team training for human particpants,
More information on the Synthetic Teammate project is available at The Synthetic Teammate Project Wiki
The language comprehension component of the synthetic teammate research is based on Double R Theory.  Double R Theory is a linguistic theory of the grammatical encoding and integration of referential and relational meaning in English. The associated grammar is fundamentally a Cognitive Linguistic theory and the use of the term "grammar" encompasses meaning, function and structure as it does in Cognitive Grammar (also known as Cognitive Semantics). More information as well as scientific publications can be found at the Double R Theory Site.