From an evolutionary and from a learning perspective,conscious cognitive functions can be assumed to emerge from more elementary functions.
Whereas elementary functions (e.g., reflexes) are influenced directly by stimulus constellations, mental control functions are guided intentionally; they are regulated by the self.
For example, it is not possible for a mentally controlled action to emerge from the grasp reflex in humans. In fact, this reflex has to be actively inhibited before verbal or other cognitive tools can be applied and a goal-directed action can be formed.
Should children, at this point in their development, fail to develop any inhibitory activity, they will not be able to manipulate objects at all. All they will be capable of is a