Apraxias are defined as a set of motor impairments in which patients have difficulty performing learned movements in which they have previously been skilled. Apraxias can be seen for a wide range of specific types of movement, including organizing sets of movements, aspects of speech, drawing and constructing objects, and orienting one’s body with reference to other objects. Apraxias are associated with damage to specific areas of the brain.
Source: Petreska, B., Adriani, M., Blanke, O., & Billard, A. G. (2007). Apraxia: A review. Progress in Brain Research, 164, 61–67