1. Dynavision D2™ Visual-Motor Training System
Neuro-Cognitive Evaluation for Concussion Management
Suggested Protocols for Baseline Testing and Post-Concussion Examination*
*Developed by Joseph F. Clark, PhD, ATC
Professor of Neurology, University of Cincinnati School of Medicine
Presented at Dynavision ADT Seminar, October 2014

2. © 2015 Dynavision International, LLC
Dynavision D2™ Neuro-Cognitive Evaluation for Concussion Management
The Dynavision D2™ concussion baseline test consists of 2 tests; Proactive (Mode A), and
Reaction Test (Mode D). These programs come standard with Dynavision D2™ software.
Proactive (Mode A):
Step 1: Select *Proactive, 1 Min.
Step 2: Click Run Program.
Data Management:
A quadrant graph will appear at the conclusion of the run. The client’s score (hits per minute)
and average reaction time by quadrant are indicated.
Click Show Text Report to view light board statistics:
 Reaction Times
 Quadrants/Rings
 Time/Score Breakdown
 Click Print, or Done
Data Management:
Focus: Average reaction time and
clinical observations
Verbal Instructions:
“Hit the red buttons as quickly as
you can until time runs out.”
“Do you have any questions?”
Clinical Observations:
 Left/right symmetry of the
upper extremities
 Unsteady balance
 Alternating hands instead of
using hand that is closest
 Intention tremors
 Pauses before striking

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Reaction Test (Mode D):
Step 1: Select *Reaction Test. Click Run Program.
Test 1: Right Hand - 4 Choice
Test 2: Left Hand - 4 Choice
Verbal Instructions:
“Press and hold the red button
with your right hand. Ignore the
green button for now. When a
second red light appears, strike
it as quickly as you can.”
“Repeat each test 5-7 times with
each hand. Do not press the
green button until you are ready
to move on to the next test.”
“Do you have any questions?”
Clinical Observations:
 Left/right symmetry of the
upper extremities
 Unsteady balance
 Intention tremors
 Pauses before striking
Data Management:
Focus: Average reaction time and
clinical observations

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Test 3: Right Hand – 8 Choice
Test 4: Left Hand – 8 Choice

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Test 5: Right Hand 1 Choice
Test 6: Left Hand 1 Choice

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Data Management:
A text report will appear at the conclusion of the sixth and final reaction test. Visual, Motor,
and Physical reaction times, number of attempts and number of false starts are indicated.
Dynavision D2™ Concussion Exam
The Dynavision D2™ concussion exam consists of 3 memory tests graded in complexity. These
programs must be configured by the clinician as they do not come standard with Dynavision
D2™ software. Detailed instructions for programming and report management are provided
below.
Repeat Concussion Baseline Test Protocol
 Proactive (Mode A)
 Reaction Test (Mode D)
Memory Test 1

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Step 1: Select Reactive Mode
Step 2: Activate rings 1, 2, and 3
Step 3: Under T-Scope Option, click Change.
Step 4: Set flash at 1 digits for 1.00 seconds. Click OK.
Step 5: Click Save Program. Name the program. Click OK.
Step 6: Click Run Program.
Memory Test 2
Step 1: Select Reactive Mode
Verbal Instructions:
“Single digit numbers will flash
on the screen for one second.”
“Hit the red buttons as quickly
as you can. At the same time,
call the numbers out.”
“Do you have any questions?”
Verbal Instructions:
“Single digit numbers will flash
on the screen for one second.”
“Hit the red buttons as quickly
as you can. At the same time,
call out the first number,
remember the second number,
and then call out the sum.”
“For example, if the first
number is 4 and the second
number is 3, you would say “4”
followed by “7.”
“Do you have any questions?”
Clinical Observations:
Note the client’s score, ability to
call numbers accurately.
Data Management:
Focus: All data
Additional Observations:
 Left/right symmetry of the
upper extremities
 Unsteady balance
 Alternating hands instead of
using hand that is closest
 Intention tremors
 Pauses before striking or
calling/adding numbers

8. © 2015 Dynavision International, LLC
Step 2: Activate rings 1, 2, and 3
Step 3: Under T-Scope Option, click Change.
Step 4: Set flash at 1 digits for 1.00 seconds. Click OK.
Step 5: Click Save Program.
Name the program.
Click OK.
Step 6: Click Run Program.
Memory Test 3
Step 1: Select Reactive Mode
Verbal Instructions:
“Single digit numbers will flash
on the screen for one second.”
“Hit the red buttons as quickly as
you can. At the same time, call
out the first number, remember
the second number, and then
call out the sum.”
“This time, some of the red lights
will be green. When you see a
green light, call green. Do not call
red.”
“Do you have any questions?”
Clinical Observations:
Note the client’s score and ability
to call and add numbers.
Data Management:
Focus: All data
Additional Observations:
 Left/right symmetry of the
upper extremities
 Unsteady balance
 Alternating hands instead of
using hand that is closest
 Intention tremors
 Pauses before striking or
calling/adding numbers

9. © 2015 Dynavision International, LLC
Step 2: Activate rings 1, 2, and 3
Step 3: Under T-Scope Option click Change.
Step 4: Set flash at 1 digits for 1.00 seconds. Click OK.
Step 5: Under Lights/No Green Lights, click Change.
Select 20%.
Step 6: Click Save Program. Name the program. Click OK.
Step 7: Click Run Program.
Documenting T-Scope Errors:
Clinical Observations:
Note the client’s score, ability to
call and add numbers, and ability
to call green lights accurately.
Data Management:
Focus: All data
Additional Observations:
 Left/right symmetry of the
upper extremities
 Unsteady balance
 Alternating hands instead of
using hand that is closest
 Intention tremors
 Pauses before striking or
calling/adding numbers

10. © 2015 Dynavision International, LLC
1. Click Right or Wrong to record errors during the run.
2. Click Edit T-Scope Scores to record errors after the run.

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Interpretation for Return to Play:
 A less than 10% reduction in baseline score at retest indicates a passing score.
 A 10% reduction in baseline score at retest indicates a failing score.
Please Note: The Dynavision D2™ device can provide clinicians with objective information regarding the user’s neuro-cognitive
condition and this information has shown to be a useful part of a comprehensive neurological examination; however,
performance on the D2™ (or any other single test or evaluation) should not be used as the sole basis for making a clinically
prudent decision regarding a player’s readiness to ‘Return to Play’.
To Calculate Score:
1. Add the total number of hits
and the T-Scope score.
2. Subtract the number of
errors.
3. Multiply this number by two
to determine the final score.
Example:
38 (Number of hits)
+ 8 (T-Scope Score)
- 2 (Errors)
= 44
44 X 2 = 88
Baseline Score = 88