(New) - The complete clarification of all functional perception processes when opening a lock with a key
0. Einstein, the Stationary Lock, and the Digital Clock: The Visual Perception Observes Stationary Locks Moving in Time
1. LOCK OPENING - Prior to opening a lock we always first construct a perceptual image of a latent action trajectory shape out of the perspective of the key – The scientific evidence
2. Opening a door lock with a key requires a compelling collaboration between an internal (secondary) focus and an external (primary) focus
3. When opening a lock with a key the essence of the task is solely executed by the movements of the key; The perception-action coupling within the primary focus generates the tau-value
4. The tau-coupling process when opening a lock with a key demonstrates that we absolutely do not need a motor plan; Executing an external action trajectory shape along which (the tip of) the key moves dictates all internal sensorimotor perception processes
5. From random motor activity to the execution of deliberate actions demands shifting the internal and external focus; The tip of the key can solely be moved along an action trajectory shape with autonomous perception of movements up to the key head
6. The explanation of the emergence of the cortical streams - We can only guide the key toward a lock with a zigzag movement, yet the ingenious mediation by the cortical streams creates the delusion of a straight action trajectory shape
