1. P50 Conte Center National Institute of Mental Health, “Project 3: Characterizing the course of state representation in early psychosis.” Part of the P50 Center Dysfunctional State Representations in Psychosis: From Neurophysiology to Neuroplasticity-based Treatment. A.W. MacDonald, III, Project 3 Principal Investigator. Sophia Vinogradov & A. David Redish, Center PI’s. April 2020 - March 2025. 
  2. R01 National Institute of Mental Health, “Cognitive Neurocomputational Task Reliability & Clinical Applications.” A.W. MacDonald, III, Principal Investigator. September 2019 – April 2023.
  3. NIH R01 NIH BRAIN Initiative, "Increased thalamocortical connectivity in tdcs-potentiated generalization of cognitive training." A.W. MacDonald, III and K.O. Lim, Multiple PI’s. July 2018 -June 2022.
  4. R21 National Institute of Mental Health, “Parametrically Detailed Computational Analyses of Human Foraging Behavior.” A.W. MacDonald, III, Co-Investigator. Alik Widge, Principal Investigator. July 2019 - June 2021.
  5. Merit Review, Department of Veterans Affairs. “Restoration of cognitive function with TDCS and training in schizophrenia.” A.W. MacDonald, III, Co-Investigator. Tasha Nienow, Principal Investigator. July 2017 – June 2022.