ABSTRACT
In behavioural terms, constructional dyspraxia (CD) is a disorder of planned movements for any kind of task involving the structuring or arranging of objects, parts of objects, or lines in two and three dimensional space. De Renzi (1982) emphasises the dual motor and visual-spatial aspects so important to an understanding of the disorder when he describes CD as 'emerging in the execution of tasks where individual elements must be arranged in a given spatial relationship to form a unitary structure, under the guidance of a visual or mental model' (p. 237).
