PMC is involved in
Learning and executing complex movements that are guided by sensory input
When sensory input is “arbitrary” (not inherently related to the movement), reaching for an object in a location involves
Sensory input that is inherently related to the movement, i.e., spatial location
When sensory input is “arbitrary” (not inherently related to the movement), reaching for an object when its name is spoken, or stopping/ accelerating at a traffic signal
Are movements in response to spatial location, but cannot learn to make movements in response to visual, auditory, or tactile cues