An important aspect of the classical mark-test is that the mark / dye is non-tactile, preventing attention being drawn to the marking through additional perceptual cues ( somesthesis ).
2.
Expressed in simplified terms, Yuasa's scheme of the body consists in four systems : sensory-motor awareness ( somesthesis, much like the sensory-motor apparatus of ki-energy flow through the body's meridians ).
3.
Somatic senses are sometimes referred to as "'somesthetic senses "', with the understanding that somesthesis includes the "'sense of touch "', proprioception ( sense of position and movement ), and ( depending on usage ) haptic perception.