PSYB65H3 Chapter 11: PSYB65 Chapter 11
Document Summary
Our movements feature at least two categories of action: first, we decide on a goal and choose how to achieve it; then we make moves to reach the goal. The major components of our motor system are the cerebrum (forebrain), the brainstem, and the spinal cord: the cerebrum contributes to our conscious control of movement, while the brainstem and spinal cord direct our movements. In the face of impaired brainstem or spinal cord function, the forebrain can imagine movement but can no longer produce it. Cns performs in the seemingly simple act of directing your hand to pick up a cup. The subcortical basal ganglia help to produce the appropriate amount of force for grasping the cup handle, while in the brainstem, the cerebellum helps to regulate the movement s timing and accuracy. Afferent somatosensory information travels from the body inward via the somatic nervous system.
