Alexander Tröster, PhD

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Alexander Tröster, PhD


Alexander Tröster, PhD
Director, Department of Clinical Neuropsychology

Dr. Alexander Tröster is a clinical neuropsychologist as well as a professor and senior scientist at Barrow Neurological Institute. He is the author of more than 160 scientific and medical journal articles and numerous book chapters, and his primary research interests include:

  • cognition in movement disorders
  • the role of the basal ganglia in cognition
  • neuropsychological outcomes of stereotactic and functional neurosurgery, especially deep brain stimulation

His contributions to neuropsychology have been recognized with fellowships from the National Academy of Neuropsychology and the American Psychological Association. He has served as president of the National Academy of Neuropsychology and has been recognized by the society with the Distinguished Scientific Contributions to Clinical Neuropsychology and the Early Career Achievement awards.

He serves on the editorial boards of five scientific journals and several advisory boards and is an examiner for the American Board of Clinical Neuropsychology.

To request an appointment with Dr. Tröster, please call (602) 406-6281 or 1-800-227-7691, or request more information.


Education, Training, and Previous Positions

  • 2012-Present: Professor and Senior Scientist, Barrow Neurological Institute; Director of Neuropsychology Research, Barrow Center for Neuromodulation
  • 2008-2012: Professor of Neurology (Clinical), University of North Carolina School of Medicine - Chapel Hill; Co-Director, National Parkinson Foundation Center of Excellence
  • 2003-2008: Associate Professor of Neurology, University of North Carolina School of Medicine - Chapel Hill; Co-Director, National Parkinson Foundation Center of Excellence
  • 2001-2003: Director, Psychology Internship Program, University of Washington School of Medicine
  • 2000-2003: Associate Professor of Psychiatry and Behavioral Sciences, University of Washington School of Medicine
  • 1997-2000: Associate Professor of Neurology (Clinical), University of Kansas Medical School
  • 1997-2000: Director, Center for Neuropsychology and Cognitive Neuroscience, University of Kansas Hospital
  • 1993-1997: Assistant Professor of Neurology (Clinical), University of Kansas Medical School
  • 1991-1993: Assistant Professor of Psychology, Washington State University
  • 1991: PhD, University of California-San Diego and San Diego State University, Clinical Psychology
  • 1986: MS, North Dakota State University, Psychology (Behavior Therapy Track)
  • 1983: BScPsych, University of Zimbabwe, Harare, Zimbabwe, Psychology


Selected Professional Memberships and Appointments

  • American Psychological Association & Division 40 (Clinical Neuropsychology), APA (Fellow)
  • International Neuropsychological Society
  • National Academy of Neuropsychology (Fellow)
  • American Academy of Clinical Neuropsychology
  • American Academy of Neurology (Affiliate)
  • Movement Disorder Society
  • American Society of Stereotactic and Functional Neurosurgery (Associate)
  • World Society of Stereotactic and Functional Neurosurgery (Associate)


Selected Honors and Awards

  • 1997: National Academy of Neuropsychology Early Career Achievement Award
  • 1993: National Academy of Neuropsychology Nelson Butters Award for Research Contributions to Clinical Neuropsychology
  • 1990: Christopher E. Parker Memorial Award for Outstanding Student Research, San Diego State University
  • 1989: Fellowship, Epilepsy Foundation of America
  • 1989: International Center Scholarship, University of California-San Diego
  • 1988: American Psychological Association Travel Grant
  • 1988: Fellowship, Epilepsy Foundation of America
  • 1988: International Institute of Education S.T.E.P. Grant
  • 1988: Phi Beta Delta
  • 1987: Phi Kappa Phi
  • 1985: Psi Chi
  • 1983: Zimbabwe Psychological Association Prize
  • 1983: University Prize, University of Zimbabwe
  • 1983: University Grant, University of Zimbabwe
  • 1982: University Prize, University of Zimbabwe


Selected Publications

  1. Okun MS, Gallo BV, Mandybur G, Jagid J, Foote KD, Revilla FJ, Alterman R, Jankovic J, Simpson R, Junn F, Verhagen L, Arle JE, Ford B, Goodman RR, Stewart RM, Horn S, Baltuch GH, Kopell BH, Marshall F, Peichel D, Pahwa R, Lyons KE, Troster AI, Vitek JL, Tagliati M. Subthalamic deep brain stimulation with a constant-current device in Parkinson's disease: an open-label randomised controlled trial. Lancet Neurol. Feb 2012;11(2):140-149.

  2. Troster AI. Deep brain stimulation and neuropsychology: a step forward? Nat Rev Neurol. Sep 2011;7(9):480-481.

  3. Sen S, Flynn MR, Du G, Troster AI, An H, Huang X. Manganese accumulation in the olfactory bulbs and other brain regions of "asymptomatic" welders. Toxicol Sci. May 2011;121(1):160-167.

  4. Raskin SA, Woods SP, Poquette AJ, McTaggart AB, Sethna J, Williams RC, Troster AI. A differential deficit in time- versus event-based prospective memory in Parkinson's disease. Neuropsychology. Mar 2011;25(2):201-209.

  5. Litvan I, Aarsland D, Adler CH, Goldman JG, Kulisevsky J, Mollenhauer B, Rodriguez-Oroz MC, Troster AI, Weintraub D. MDS Task Force on mild cognitive impairment in Parkinson's disease: critical review of PD-MCI. Mov Disord. Aug 15 2011;26(10):1814-1824.

  6. Dobkin RD, Menza M, Bienfait KL, Gara M, Marin H, Mark MH, Dicke A, Troster A. The impact of antidepressant treatment on cognitive functioning in depressed patients with Parkinson's disease. J Neuropsychiatry Clin Neurosci. Spring 2010;22(2):188-195.

  7. Chou KL, Amick MM, Brandt J, Camicioli R, Frei K, Gitelman D, Goldman J, Growdon J, Hurtig HI, Levin B, Litvan I, Marsh L, Simuni T, Troster AI, Uc EY. A recommended scale for cognitive screening in clinical trials of Parkinson's disease. Mov Disord. Nov 15 2010;25(15):2501-2507.

  8. Troster AI. Neuropsychology of deep brain stimulation in neurology and psychiatry. Front Biosci. 2009;14:1857-1879.

  9. Troster AI. Short-term cognitive and affective outcomes after subthalamic deep brain stimulation for Parkinson's disease. Lancet Neurol. Jul 2008;7(7):565-567.

  10. Fernandez HH, Aarsland D, Fenelon G, Friedman JH, Marsh L, Troster AI, Poewe W, Rascol O, Sampaio C, Stebbins GT, Goetz CG. Scales to assess psychosis in Parkinson's disease: Critique and recommendations. Mov Disord. Mar 15 2008;23(4):484-500.


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