Shared and differential neural substrates of copying versus drawing: a functional magnetic resonance imaging study.

摘要: Copying and drawing-from-memory tasks are popular clinical tests to assess visuo-motor skills in neurological patients. The share some motor visual processes; however, they differ substantially their cognitive demands. We used functional magnetic resonance imaging identify brain regions underlying processes involved these while avoiding confounds related basic requirements, through use of a specially developed imaging-compatible computer tablet. For the copying task, activation was observed subserving processing crossmodal attention (e.g. left lingual gyrus, cuneus). Drawing activated anterior cingulate, an area associated with control linking intention action. These findings suggest distinct neural networks drawing.