Dynavision Normative Data for Reaction Time

1
Dynavision Normative Data for Reaction Time

• Principal Investigator Lori Dryg, MA, CCC-SLP
  CBIS
•  
• Sub-Investigators
• Cherie Blackwell, OTR/L, CHT Sue Clemens,
  OTR/L, CBIS Kristen Mandle, OTR/L Kathy Cary,
  COTA/L Jon Lemke, PhD

2
What is the Dynavision used for?

• Originally designed as a device to improve visual
  skills and eye hand coordination of athletes.
• Tiger Woods
• Professional Hockey and Football Players
• Rehabilitation
• Device provides the same training benefits to
  persons whose visual and motor function has been
  compromised by injury or disease
• Stroke
• TBI
• Spinal Cord Injury
• ADD

3
Benefits of Dynavision

• Improve visual and cognitive skills
• Hemi inattention
• Left neglect
• Processing speed
• Divided attention and concentration
• Improve Activities of Daily Living
• Driving
• Reading
• Managing finances
• School performance

4
Mallard Jersey Auction

• On March 17, 2013, the Quad City Mallards Jersey
  Auction contributed 19,745 toward purchase of
  the Dynavision equipment!

5
Dynavision Video
6
Research Purpose

• No established norms for Dynavision equipment.
• Establishing norms for visual reaction, physical
  response and motor response times will assist
  therapists in properly assessing and treating
  visual perceptual deficits.

7
Study Objectives

• To determine the visual reaction speed of adults
  in age categories 18 40, 41 59 and 60-80
  years, using the Dynavision D2 Visuomotor
  Training System
• To determine the physical response speed of
  adults in age categories 18 40, 41 59 and
  60-80 years, using the Dynavision D2 Visuomotor
  Training System
• To determine the motor response time of adults in
  age categories 18 40, 41 59 and 60-80 years,
  using the Dynavision D2 Visuomotor Training
  System
•  

8
Methodology

• Cross-sectional, descriptive
• 300 participants
• 100 in each of the three age categories
• Inclusion Criteria
• Exclusion Criteria

9
Recruitment

• Flyers
• Local newspaper articles
• Newsletters
• Word-of-mouth to families and patients in the
  Outpatient Physical Rehabilitation facility
• WE NEED YOU!!!!

10
Data Collection

• Initial Intake Form
• Informed Consent
• Standard Screening Form (i.e., past medical
  history, ROM screen)
• Dynavision Reaction Speed Test
• Practice
• Recorded Results

11
Data Analysis

• GHS Business Intelligence Center will analyze
  total reaction times across the 6 tasks for each
  age group to establish normal limits.
• Identifying the parametric distribution of the
  data allowed use of a 50 patient sample, opposed
  to 400 otherwise.
• Results to be announced upon completion of
• data collection.

12
Initial Cohort

• 50 patients age 60
• Calculate time to complete all 6 tests
• Take reciprocal of these values
• Plot and test for normality
• Find 2.5 and 97.5 percentiles

13
Results of Analysis

• Lower limit (2.5th percentile) is 21.8 seconds
• Upper limit (97.5th percentile) is 43.5 seconds
• Recommend that patients age 60 recovering from
  stroke complete all 6 tests in at most 43.5
  seconds

14
Barriers to Data Collection

• Our equipment is not portable
• Conducted during regular business hours
• Men are more reluctant to participate
• Full time employees trying to manage caseload and
  research
• Convenience population fall in exclusion criteria

15
Volunteers

• Data collection began Fall 2014.
• We have completed 1/3 of the study!!!
• Call 421-3460 to set up an appointment to
  volunteer!

16
Questions!!!