Modular Design-Accelerated Development of Minimally Invasive Dried Plasma and Saliva Tests for Detecting TBI Sequelae for AD Dementia
Clinical Trials


Open to accrual


65 – 90


M, F



This study aims to understand the effects of Traumatic Brain Injury (TBI) in older adults. Researchers from the Department of Defense are conducting this research study to develop treatment options for memory and dementia detection to improve traumatic brain injuries (TBIs) for vets.

Participation includes…

  • Attending (2) study visits lasting about 3.5 hours each 
  • Completing various questionnaires  
  • Cognitive testing 
  • MRI of the brain 
  • Blood draws 
  • Saliva collection  


Participants will receive a Fitbit upon completion of the full study.


To be eligible to participate individuals need to meet the following criteria:

  • 65 to 90 years of age  
  • Reported head injury in the past 3 months   
  • Able to complete an MRI of the brain 
  • Able to complete a blood draw and saliva collection 


If you have questions or would like to participate, please contact Isabella Nelson at, or (352) 317-3761. 

Study Details

PI Full name pi department Email phone number irb number
John Williamson, PhD Department of Clinical Health & Health Psychology (323) 317-3761 IRB202102196