[New approach to apraxia].

Our collective understanding of our approach to apraxia has not dramatically changed over the last century. The classical approach to apraxia has occasionally caused confusion and disagreements because it lacks established definitions for apraxia and related terms such as "praxicon" or "ideation". Rather, the current system allows each researcher to define these terms differently, making it extremely difficult to compare cases reported by different researchers. New approaches, however, are providing more concrete definitions, enabling us to describe apraxic disorders more operationally, this may help prevent the disagreement concerning these definitions. A more recent approach, demonstrated in several reports, focuses on the interactions between "body" and "objects". Another approach concentrates on information processing such as "online processing" and the retrieval of stored knowledge. These new approaches to apraxia have the potential to improve our ability to communicate about this condition. In future studies, these conceps should be integrated into the classical approach to create a single, workable model for understanding apraxic syndromes.