#  Trainees 

 



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  [### Emily Van Etten, PhD

 ](/people/emily-van-etten-phd-0) <emily.vanetten@va.gov>Postdoctoral Fellow

 

 

 Emily is a postdoctoral fellow in neuropsychology and joined the TRACTS team in August 2023. She obtained her PhD in Clinical Psychology at the University of Arizona and completed her internship with VA Boston. Generally, she is interested in the... 

 

 

      ![Emily](/sites/g/files/omnuum4516/files/styles/hwp_4_5__690x865/public/heartbrain/files/picture-3194-1506541859_1.jpg?itok=9oNI9_6T) 

 

 

 

   [### Tyler Robinson, PhD

 ](/people/tyler-robinson-phd) <tyler.robinson@va.gov>

 Tyler joined the TRACTS team in September 2024 as a postdoctoral fellow with an interest brain aging, translational research, and epigenetics. He completed his PhD at Louisiana State University before working with the Cranium lab at the Rotman Research... 

 

 

      ![Tyler Robinson](/sites/g/files/omnuum4516/files/styles/hwp_4_5__690x865/public/2025-02/Robinson%20Headshot.png?itok=WeaHOt-z) 

 

 

 

   [### Kerri Walter, PhD

 ](/people/kerri-walter-phd) <Kerri.Walter@va.gov>Postdoctoral Fellow

 

 

 Kerri joined the TRACTS team in July 2025 as a postdoctoral health science research fellow. She completed her BS in Neuroscience from the University of Delaware followed by obtaining her PhD in Psychology with a concentration in Vision Science from... 

 

 

      ![image of Fellow Kerri Walter](/sites/g/files/omnuum4516/files/styles/hwp_4_5__690x865/public/2025-09/Walter%20Headshot.png?itok=HFD0MsmO) 

 

 

 

   [### Sarah Bottari, PhD

 ](/people/sarah-bottari-phd) <Sarah.Bottari@va.gov>Postdoctoral Fellow

 

 

 Sarah is a postdoctoral clinical research fellow in neuropsychology and joined the TRACTS team in August 2025. She received her PhD in Clinical Psychology from the University of Florida and completed her internship with an emphasis in neuropsychology at... 

 

 

      ![photo of Sarah Bottari](/sites/g/files/omnuum4516/files/styles/hwp_4_5__690x865/public/2025-09/Sarah%20Bottari%20-%2011.2.jpg?itok=jZDy-5tZ) 

 

 

 

   [### Arielle Knight, M.P.H.

 ](/people/arielle-knight-ba) <arielle.knight@va.gov>Research Assistant, TRACTS

 

 

 Arielle joined the TRACTS team in June 2022 and will be working on multiple projects, including our new study focusing on the relationship between combat exposure and Alzheimer's disease (ATRACTS). Currently, Arielle is a PhD candidate at Boston... 

 

 

      ![Arielle Pic](/sites/g/files/omnuum4516/files/styles/hwp_4_5__690x865/public/heartbrain/files/arielle_pic_1.jpg?itok=vSBdu02A)