Universal Features of Handwriting: Towards a Non-linear Model

In motor control studies alone, handwriting has been studied from many points of view, from models integrating cognitive and motor processes to algorithms simulating handwriting trajectories. In research fields as diverse as Developmental Psychology, Neuropsychology, or Computer Science, basic units can be words, letters, or strokes. Thus, a unified view is hard to come by. Whereas all studies strive to explain how recorded handwritten traces are produced, very few propose lawful principles predicting observed changes in handwriting, whether due to maturation, learning, fatigue, or pathology. Followin