Introduction to the special topic Embodied and Grounded Cognition.

This special topic had two aims: First, give an idea of the field in its broadness. Second, focus on some challenges for E&G theories. The first important challenge is to account for understanding abstract concepts and words. Evidence on the representation of concrete concepts is compelling, whereas evidence on abstract concepts is still scarce and limited to restricted domains. A second important challenge concerns the role of computational models. E&G theories of cognition need to formulate more precise hypotheses, and models help to constrain and specify in more detail the predictions and the claims advanced.