(New) - The complete clarification of all functional perception processes within writing
1. Writing with the other hand unequivocally exposes the presence of two foci - The act of writing requires the compelling collaboration between an internal and an external focus
2. Within writing the essence of the task is solely executed by the external interconnected movements of the pen tip; Within the primary focus the tip of the pen is captured within an action trajectory shape providing several tau-values
3. The execution of an external action trajectory shape over which the tip of the pen moves dictates all internal sensorimotor perception processes; The tau-coupling process within writing shows that we absolutely do not need a motor plan
4. From random motor activity to the execution of deliberate actions demands shifting the internal and external focus; Scientific evidence of the origin of two autonomous foci and how their roles have evolutionarily reversed
5. The explanation of the emergence of the cortical streams - We can only guide a tip of the pen with a zigzag movement, yet the ingenious mediation by the cortical streams creates the delusion of a straight action trajectory shape
