Abstract
The Standard Performance Test of Apraxia is utilizable not only for the typical-classical apraxias but also for other executive or performance disorders such as “left hand apraxia”, “diagonistic dyspraxia”, “utilization behaviour”, “compulsive use of tools” or “kinetic melody impairments”.
Many apraxias, especially buccofacial apraxia, have more or less some relationships with aphasias. However, according to my opinion, aphasia and apraxia may be the manifestations fundamentally at least of two different neural networks, even if these networks are partly overlapping.