Ideograms are drawn by the central nervous system
Although Ingo Swann thought at the time that this movement was triggered by the autonomic nervous system, it is now understood that this cannot be the case. The autonomic nervous system controls all involuntary, automatic functions such as heartbeat, digestion, respiration, etc., but the so-called “autonomic reactions” are controlled by the Central nervous system, just like all movements that muscles require. Nevertheless, in this case they are unconscious processes that result in an automatic movement response. Well-known examples of such autonomic actions of the body are reflex movements or trained autodynamics.