Week 9: Neural control of Movement in Sport

Question 1

What is the main function of the Premotor cortex?

Answer 1

Planning movement, especially movements guided by external information. Remembering object movements.
Sensory guidance of movement specifying the spatial location of target and preparation for action. (Closely linked to primary motor cortex)

Question 2

What are the main functions of supplementary motor area?

Answer 2

Strong projection of hand representation to other hemisphere.
Bimanual coordination
Preplanning of movement sequence.
Motor imagery

Question 3

What are the main differences of Premotor cortex and SMA?

Answer 3

Premotor cortex uses sensory guidance of movement.

SMA uses internal triggering of movement. SMA becomes active before movement occurs.
Temporal structuring of complex movements such as speech, rhythmic movements. Also responsible for coordination

Question 4

What are the functions of Cerebellum?

Answer 4

Guides movement by inhibiting neurons

Information from muscle and joint receptors, vestibular organ, and visual, somatosensory and auditory cortex.

Automated movements.

Question 5

What is the main function of the basal ganglia?

Answer 5

Acts as a switchboard of the brain.

Modulate motor cortex activity.