Movement

1. Movement When you care enough to send the very best.

2. All Responses Involve Movement • Raising your hand. • Saying “yes” or “no”. • Walking away (or toward). • Doing “the wave”. • Punching out a chad. • Typing out an email.

3. Units of Movement Voluntary Movements (skilled: feedback important) most movements are a combination of voluntary and involuntary (ex: walking) Ballistic Movements Reflexes-consistent automatic responses to stimuli Feedback not as important

4. Skilled Movement Feedback important Correct mistakes Get better with practice KW p. 370

5. Dog with an Itch Ballistic Movement: launched by stimulus Little attention to feedback A dog and his bone. KW p. 363

6. Sensory Motor Integration KW 10-2

7. Oliver Sacks Case Study of Christina: loss of sensory feedback

8. Motor Cortex KW 10-3

9. Penfield’s Homunculus KW 10-9

10. Motor Homunculus

11. Blood Flow Study 1 KW 10-6

12. Blood Flow Study 2 KW 10-6 Kimura box

13. Blood Flow Study 3 KW 10-6

14. Prefrontal Cortex KW 10-3

15. Prefrontal areas KW 11-16

16. Functions of the Prefrontal Lobes Assessing damage with a neuropsychological tests.

17. Wisconsin Card Sorting Test Where do you sort the top card on deck?

18. Stroop Test Used to assess functions of frontal lobe. Ability to change strategies based on need.

19. Read the following words

20. Name the Colors

21. Name the Color of the Ink

22. Limbic system KW 11-14

23. Prefrontal Lobe Damage • Lack of care and concern • Emotional blunting • Poor planning • Inability to complete tasks • Inability to change plans as need arises. • Poor social skills and bonding

24. Premotor Cortex KW 10-3

25. Premotor Cortex: Functions • Organizing Motor Sequences • Praxis = action • Apraxia = lack of action • Testing for motor sequences • Making a pot of coffee • Kimura apparatus

26. Broca’s area • Located in premotor cortex • Organizes movements of speech • Damage causes motor aphasia • Poor articulation • Tan: understand but cannot produce speech

27. Motor Cortex KW 10-3

28. Penfield’s Homunculus KW 10-9

29. Corticospinal tract KW 10-11

30. Motor Neurons in Spinal Cord KW 10-12

31. Control of Muscles KW 10-13

32. Controlof Movement Muscles and their Movement Muscle Control by Proprioceptors proprioceptors-receptor that is sensitive to the position or movement of a part of the body muscle spindle-receptor parallel to the muscle that responds to the stretch of the muscle golgi tendon organ-responds to increases in muscle tension

33. Sensory receptors for movement KW 10-23

34. Proprioceptors 1 Muscle Spindle Muscle Spindle brings about muscle contraction When a muscle is stretched, the nerves from the muscle spindles transmit an increased frequency of impulses, resulting in a contraction of the surrounding muscle.

35. Knee jerk reflex KW 10-27

36. Proprioceptors 2 Golgi Tendon Organ GTO’s tell muscle to take it easy Contraction of the muscle stimulates the Golgi tendon organ, which acts as a brake or shock absorber to prevent a contraction that is too quick or extreme.

37. Sensory Homunculus KW 10-32

38. Sensory Nerves KW 10-24

39. Sensory Cortex KW 10-31

40. Sensory streams Kw 10-34

41. Partners in movement Cerebellum Basal Ganglia

42. Cerebellum KW 10-20

43. Cerebellum Functions habit formation timing attention coordination of movements

44. Prism Vision and the cerebellum 1 KW 10-21

45. Prism Vision and the cerebellum 2 KW 10-21

46. Feedback to Cerebellum Inferior olive is area in brain stem opposite cerebellum KW 10-22

47. Cerebellum and Brainstem KW p. 363

48. Basal Ganglia KW 10-18

49. Pathways to Basal Ganglia KW 10-19 Basal Ganglia

50. Connections from the substantia nigra: (a) normal and (b) in Parkinson’s diseaseExcitatory paths are shown in green; inhibitory are in red.People with Parkinson’s disease show decreased initiation of movement, slow and inaccurate movement, and psychological depression.