PSYB65H3 Lecture Notes - Dopamine Antagonist, Correlation Does Not Imply Causation, Huntingtin
Document Summary
Accurate movements depend on our ability to monitor the position and placement of our body and its part, which relies on somatosensory feedback from our joints, tendons, muscles and skin. Case study of g. o - role of somatosensory feedback. Former darts champion who experienced almost complete destruction of the somatosensory nerves in both arms due to an infection. Still had fine motor skills in fingers - could make shapes in the air, could perform complex motor movements. He was also unable to use either tactile feedback to stop his movements or position/force information from his muscles and joints to judge the speed and direction of his grasp (spilling coffee). This case study indicates that many automatic adjustments occur unconsciously; they are made without the involvement of higher cortical areas and are relatively resistant to interference from higher cortical areas. Types of receptors are functionally grouped into three types of somatic information:
