Biological MS
- Created by: kathleen_tara
- Created on: 28-05-18 18:19
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Motor cortex
- in rear portion of frontal lobe, just before central sulcus that separates frontal lobe from parietal lobe
- Hitzig & Fritsch (1970)
- > electronically stimulated various parts of dogs' motor cortex
- > depending on which cortex part was stimulated, different parts of the body contracted
- > plasticity in motor cortex, as one learns a complex movement, motor cortex changes
Descending spinal tracts
- motor pathways which originate in brain descend down the spinal cord to control motor neurons
- these large neurons then send their axons out via spinal roots and directly control muscles
Where does automation occur?
- experts have reduced activation in cortical regions (behaviour becomes automated)
- before it can carry out movement your motor cortex must first receive relevant info from other brain regions
- basal ganglia may be site of storage of motor programs
Basal ganglia
- collective term for number of structures
- > caudate nucleus
- > putamen
- > globus…
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