Covert Agency with Proprioceptive Feedback
: Marcel says that the experience of ownership of actions is given in the specifications for action. He is referring not to a bodily movement but that which precedes it. Is the body involved or are all the changes in the brain? This paper examines the evidence for changes in the spinal
cord and muscles that occur with motor imagery, simulation and preparation. There are changes in the alpha motoneurons and in the gamma motoneurons to the muscle spindles. These may be caused by stimulation from the covert efferent arm to the body. To experience the ownership of covert actions
in the body requires feedback to the owner as their spatially perspectival source. There is evidence that an ascending pathway from the muscle spindles to the brain carries such feedback. This view of the feedback loop is integrated into the sensorimotor view of the genesis of consciousness
of Ellis and Newton.