Association between Traumatic Brain Injuries and the Development/Progression of Lead Investigator: Kimberly Diah Institution : Nova Southeastern University E-Mail : kd1048@nova.edu Proposal ID : 917 Proposal Description: 1. To determine systematically the cognitive deficits associated with different severities of traumatic brain injuries and to distinguish AD clinical presentation definitively from CTE presentation. 2. To understand the neurophysiological presentation between severity of TBIs and to determine levels of cognitive dysfunction based on neuropsychological assessment data. The overall goal of this project is to show that single acute traumatic brain injuries as compared to other types of traumatic brain injuries lead to significant declines in cognitive function. The study also seeks to determine how early onset cognitive indicators of AD may be correlated/misdiagnosed as other forms of neurocognitive deficits.