Session 3

1. Session 3 90 Minutes Psychophysical Tests

2. Learning Objectives • Administer the four divided attention tests used in the drug influence evaluation process • Document the subject’s performance of those tests

3. Modified Romberg Balance Test Diagram Modified Romberg Balance Approx. Approx. Internal Clock: _____Estimated as 30 sec.

4. 30 Seconds • Internal timing estimate • Some drugs tend to speed up or slow down the subject’s internal clock

5. Modified Romberg Balance Test • Divided attention • Internal Clock

6. Modified Romberg Balance Test Administration • Tell the subject to stand straight with the feet together and the arms down at the sides • Tell the subject to maintain that position while you give the instructions (Ask the subject if he or she understands so far) • Tell the subject when you instruct them to begin the test, they must tilt their head back and close their eyes • Tell the subject that when you say "Start", they must keep their head tilted back with their eyes closed until they think that 30 seconds have gone by • Tell the subject that, when they think the 30 seconds have gone by, they must bring their head forward, open their eyes, and say "Stop"

7. Modified Romberg Balance Test Administration (Cont.) • Ask the subject if they understand • Look at your timing device and pick a convenient time to start the test • Tell the subject to tilt their head back and close their eyes • Tell the subject to begin or start the test • Keep track of time while the subject performs the test • When the subject opens the eyes, ask them "how much time was that?" • If 90 seconds elapse before the subject opens their eyes, stop the test

8. Modified Romberg Balance Test Demonstrations Modified Romberg Balance 1 2 2 1 Internal Clock: _____Estimated as 30 sec.

9. Modified Romberg Balance Test Practice Modified Romberg Balance Internal Clock: _____Estimated as 30 sec.

10. Walk and Turn Test

11. Walk And Turn Test Describe Turn Cannot Do Test (explain) Cannot keep balance___________ Starts too soon _______________ Stops Walking Misses Heel-Toe Steps Off Line Raises Arms Actual Steps Taken 1st Nine 2nd Nine Walk and Turn Test Diagram

12. Walk and Turn Test • Instructor – Participant demonstration • Participant – Participant demonstration

13. Walk And Turn Test Describe Turn Cannot Do Test (explain) Cannot keep balance___________ Starts too soon _______________ Stops Walking Misses Heel-Toe Steps Off Line Raises Arms Actual Steps Taken 1st Nine 2nd Nine Walk and Turn Recording Results

14. Walk and Turn Test Diagram M S

15. Walk and Turn Test Diagram (Cont.) M S

16. Walk And Turn Test Describe Turn Cannot Do Test (explain) Cannot keep balance___________ Starts too soon _______________ Stops Walking Misses Heel-Toe Steps Off Line Raises Arms Actual Steps Taken 1st Nine 2nd Nine Walk and Turn Test Diagram Practice

17. One Leg Stand: L R Sways while balancing. Uses arms to balance. Hopping. Puts foot down. Type of Footwear One Leg Stand Test Diagram

18. One Leg Stand: L R Sways while balancing. Uses arms to balance. Hopping. Puts foot down. Type of Footwear One Leg Stand TestAdministration

19. One Leg Stand: L R Sways while balancing. Uses arms to balance. Hopping. Puts foot down. Type of Footwear One Leg Stand TestAdministration (Cont.)

20. One Leg Stand Test DiagramRecording Results

21. One Leg Stand: L R Sways while balancing. Uses arms to balance. Hopping. Puts foot down. Type of Footwear One Leg Stand Hands-On Practice

22. Right Left Draw lines to spots touched 1 2 4 3 5 6 Finger to Nose Test Diagram

23. Right Left Draw lines to spots touched 1 2 4 3 5 6 Finger to Nose TestAdministrative Procedures

24. Right Left Draw lines to spots touched 1 2 4 3 5 6 Finger to Nose TestAdministrative Procedures (Cont.)

25. Right Left Draw lines to spots touched 1 2 4 3 5 6 Finger to Nose TestAdministrative Procedures (Cont.)

26. Finger to Nose TestRecording Results

27. QUESTIONS? 3-27