Anton Pjetur Porsteinsson, M.D.
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Anton Pjetur Porsteinsson, M.D.
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Dr. Porsteinsson has devoted his career to the care and study of individuals with memory disorders. He participates in the University of Rochester Memory Care Program, which serves a population with memory disorders. Internationally recognized in clinical research and considered one of the leading experts in Alzheimer's disease and dementia, his interests lie in biomarkers, imaging, and novel pharmacologic agents in the treatment of Alzheimer's disease and other dementias, both in terms of cognitive loss and behavioral disturbances. He is a leading investigator for many prominent national Alzheimer's prevention and treatment trials and has conducted major clinical trials with cognitive enhancers and course stabilizing agents in dementia, as well as psychotropics for behavioral changes associated with dementia. Dr. Porsteinsson is the author and collaborator of hundreds of research publications and serves as site principal investigator for research grants from the National Institutes of Health and other leading funders.
Faculty Appointments
Professor - Department of Psychiatry, Geriatric/Psychiatry (SMD)
William and Sheila Konar Endowed Professorship - Department of Psychiatry (SMD)
Professor - Department of Medicine, Geriatrics/Aging (SMD) - Joint
Professor - Department of Neurology, Memory Care (SMD) - Joint
Professor - Department of Neuroscience (SMD) - Joint
Credentials
Residency & Fellowship
Residency, Psychiatry, University of Rochester Medical Center. 1990 - 1993
Internship, University of Rochester Medical Center. 1989 - 1990
Internship, University of Iceland, Reykjavik. 1987 - 1989
Awards
Listed in Editions of America's Top Doctors. 2012
Listed in editions of Distinguished Professionals. 2010
Listed in editions of The Global Directory of Who's Who. 2010
Dr. John Baum Award, University of Rochester School of Medicine and Dentistry. 2009
Listed in editions of Who's Who in America. 2007
Summer Research Institute Fellowship. 1999
The Helga Jonsdottir and Sigurlidi Kristjansson Memorial Award. 1997
Carl Albert Jaenike Award. 1993
Residents' Recognition Award. 1993
Consultation-Liaison Award. 1992
Thorvaldur Thoroddsens Memorial Award. 1981
P.O. Christensens Memorial Award. 1981
Research
Research Lab
AD-CARE
Publications
Journal Articles
Insula and Inferior Frontal Gyrus' Activations Protect Memory Performance Against Alzheimer's Pathology in Old Age. .
Lin F, Ren P, Lo Y, Chapman B, Jacobs A, Baran T, Porsteinsson AP, Foxe J.
J Alzheimers Dis. 2017; 55(2): 669-678.
The Cingulate Cortex of Older Adults with Excellent Memory Capacity
Lin F, Ren P, Mapstone M, Meyers S, Porsteinsson AP, Baran TM.
Cortex. 2017; : 83-92.
Changes in Neuropsychiatric Inventory associated with semagestat treatment of Alzheimer's disease.
Rosenberg PB; Lanctot KL; Herrmann N; Mintzer JE; Porsteinsson AP; Sun X; Raman R.
J Alzheimers Disease. 2016; 54(1): 373-81.
Cognitive and Neural Effects of Vision-Based Speed of Processing Training in Older Adults with Mild Cognitive Impairment: A pilot study
Lin F, Heffner K, Tivarus M, Ren P, Brasch J, Chen D, Mapstone M, Porsteinsson AP, and Tadin D.
J Am Geriatr Soc. 2016; 64(6): 1293-8.
Citalopram for the Treatment of Agitation in Alzheimer's Dementia: Genetic Influences.
Peters ME, Vaidya V, Drye LT, Devanand DP, Mintzer JE, Pollock BG, Porsteinsson AP, Rosenberg PB, Schneider LS, Shade DM, Weintraub D, Yesavage J, MD8, Lyketsos CG, and Avramopoulos D: For the CitAD Research Group.
J Geriatr Psychiatry Neurol. 2016; 29(2): 59-64.
Chapman R, Gardner MN, Mapstone M, Klorman R, Porsteinsson AP, Dupree HM, Antonsdottir IM, Kamalyan L.
Clinical Neurophysiology 127. 2016; : 2423–2435.
David N, Lin F, Porsteinsson AP.
Am J Geriatr Psychiatry. 2016; 24(1): 70-80.
Effects of Citalopram on Neuropsychiatric Symptoms in Alzheimer's Dementia: Evidence from the CitAD Study
Leonpacher A, Peters ME, Drye LT, Makino KM, Newell J, Devanand DP, Frangakis C, Mintzer JE, Munro CA, Pollock BG, Rosenberg PB, Schneider LS, Shade DM, Weintraub D, Yesavage J, Lyketsos CG, Porsteinsson AP: For the CitAD Research Group.
Am J Psychiatry. 2016; 173(5): 473-80.
Heterogeneity of Treatment Response to Citalopram for Alzheimer Disease Patients with Aggression or Agitation: The CitAD Randomized Clinical Trial.
Schneider LS, Frangakis C, Drye LT, Devanand DP, Marano C, Mintzer JE, Mulsant BH, Munro CA, Newell JA, Pawluczyk S, Pelton G, Pollock BG, Porsteinsson AP, Rabins PV, Rein L, Rosenberg PB, Shade DM, Weintraub D, Yesavage J, and Lyketsos CG, for the CitAD Research Group.
Am J Psychiatry. 2016; 173(5): 465-72.
Dazed and Confused - Medical Cannabis in Alzheimer's Disease.
Antonsdottir IM, Makino KM, Porsteinsson AP.
Am J Geriatr Psychiatry. 2016; 24(11): 1004-06.
Clinical Benefit of Tramiprosate in AD are associated with higher number of APOE4 alleles: "The Gene-Dose Effect"
Abushakra S, Porsteinsson AP, Vellas B, et al.
J Prev Alz Dis. 2016; 3(4): 219-228.
Change in Agitation in Alzheimer's disease in the placebo arm of a 9-week controlled trial.
Rosenberg PB; Drye LT; Porsteinsson AP; Pollock BG; Devanand DP; Frangakis C; Ismail Z; Marano C; Meinert CL; Mintzer JE; Munro CA; Pelton G; Rabins PV; Schneider LS; Shade DM; Weintraub D; Newell J; Yesavage J; and Lyketsos CG, for the CitAD Research Group.
Int Psychogeriatric. 2015; 27(12): 2059-67.
Time to response to citalopram treatment for agitation in Alzheimer's disease
Weintraub D, Drye LT, Porsteinsson AP, Rosenberg PB, Pollock BG, Devanand DP, Frangakis C, Ismail Z, Marano C, Meinert CL, Mintzer JE, Munro CA, Pelton G, Rabins PV, Schneider LS, Shade DM, Yesavage J, and Lyketsos CG, for the CitAD Research Group.
Am J Geriatr Psychiatry. 2015; 23(11): 1127-33.
Dextromethorphan/Quinidine (DM/Q) for Agitation/Aggression in Alzheimer's Disease Dementia: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial
Cummings J, Lyketsos CG, Peskind ER, Porsteinsson AP, Mintzer JE, Scharre DW, De La Gandara JE, Agronin M, Davis CS, Nguyen U, Shin P, Tariot PN, and Siffert J, for the 12-AVR-131 Study Group.
JAMA. 2015; 314(12): 1242-1254.
Profenno LA, Porsteinsson AP, Faraone SV
Biological psychiatry.. 2010 March 1567 (6):505-12. Epub 04/09/2009.
Predicting Conversion from Mild Cognitive Impairment to Alzheimer's Disease Using Neuropsychological Tests and Multivariate Methods.
Chapman, AP.; Mapstone, M.; McCrary, J.W.; Gardner, M.N.; Porsteinsson, A.P.
Journal of Clinical and Experimental Neuropsychology. 2010; 13: 1-13.
Sevigny JJ, Ryan JM, van Dyck CH, Peng Y, Lines CR, Nessly ML,
Neurology.. 2008 November 1871 (21):1702-8. Epub 1900 01 01.
, Martin BK, Szekely C, Brandt J, Piantadosi S, Breitner JC, Craft S, Evans D, Green R, Mullan M
Archives of neurology.. 2008 July 65 (7):896-905. Epub 05/12/2008.
Streim JE, Porsteinsson AP, Breder CD, Swanink R, Marcus R, McQuade R, Carson WH
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 2008 July 16 (7):537-50. Epub 1900 01 01.
Porsteinsson AP, Grossberg GT, Mintzer J, Olin JT,
Current Alzheimer research.. 2008 February 5 (1):83-9. Epub 1900 01 01.
Cosman KM, Boyle LL, Porsteinsson AP
Expert opinion on pharmacotherapy.. 2007 February 8 (2):203-14. Epub 1900 01 01.
Martin BK, Frangakis CE, Rosenberg PB, Mintzer JE, Katz IR, Porsteinsson AP, Schneider LS, Rabins PV, Munro CA, Meinert CL, Niederehe G, Lyketsos CG
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 2006 November 14 (11):920-30. Epub 1900 01 01.
Siemers ER, Quinn JF, Kaye J, Farlow MR, Porsteinsson A, Tariot P, Zoulnouni P, Galvin JE, Holtzman DM, Knopman DS, Satterwhite J, Gonzales C, Dean RA, May PC
Neurology.. 2006 February 2866 (4):602-4. Epub 1900 01 01.
Porsteinsson AP
Drugs & aging.. 2006 23 (11):877-86. Epub 1900 01 01.
Profenno LA, Jakimovich L, Holt CJ, Porsteinsson A, Tariot PN
Current Alzheimer research.. 2005 December 2 (5):553-8. Epub 1900 01 01.
Tariot PN, Raman R, Jakimovich L, Schneider L, Porsteinsson A, Thomas R, Mintzer J, Brenner R, Schafer K, Thal L, ,
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 2005 November 13 (11):942-9. Epub 1900 01 01.
Rosenberg PB, Onyike CU, Katz IR, Porsteinsson AP, Mintzer JE, Schneider LS, Rabins PV, Meinert CL, Martin BK, Lyketsos CG,
International journal of geriatric psychiatry.. 2005 February 20 (2):119-27. Epub 1900 01 01.
Memantine – A Novel Therapeutic Option for Alzheimer's Disease.
Porsteinsson AP; Ismail MS.
Today's Therapeutic Trends. 2004; 22(1): 17-28.
Schneider LS, Porsteinsson AP, Peskin ER, Pfeiffer EA
Geriatrics.. 2003 August 58 Suppl 1 :3-18, 23; quiz 19-22. Epub 1900 01 01.
Porsteinsson AP, Tariot PN, Jakimovich LJ, Kowalski N, Holt C, Erb R, Cox C
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 2003 11 (4):434-40. Epub 1900 01 01.
Tune LE, Porsteinsson A, Weinberg A
Journal of the American Medical Directors Association.. 2003 4 (4 Suppl):H13-6. Epub 1900 01 01.
Tariot PN, Loy R, Ryan JM, Porsteinsson A, Ismail S
Advanced drug delivery reviews.. 2002 December 754 (12):1567-77. Epub 1900 01 01.
Nelson JC, Tune LE, Daiello LA, Porsteinsson A
Geriatrics.. 2002 September 57 (9):suppl 2-5. Epub 1900 01 01.
Tariot PN, Ryan JM, Porsteinsson AP, Loy R, Schneider LS
Clinics in geriatric medicine.. 2001 May 17 (2):359-76. Epub 1900 01 01.
Noviasky JA, Porsteinsson AP, Lee YH
The Journal of school nursing : the official publication of the National Association of School Nurses.. 2001 April 17 (2):103-11. Epub 1900 01 01.
Porsteinsson AP, Tariot PN, Erb R, Cox C, Smith E, Jakimovich L, Noviasky J, Kowalski N, Holt CJ, Irvine C
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 2001 9 (1):58-66. Epub 1900 01 01.
Tariot PN, Solomon PR, Morris JC, Kershaw P, Lilienfeld S, Ding C
Neurology.. 2000 June 2754 (12):2269-76. Epub 1900 01 01.
Reconsidering the DSM-IV diagnoses of Alzheimer's disease: behavioral and psychological symptoms in patients
Caine ED; Porsteinsson A; Lyness JM; First M;.
International Psychogeriatrics. 2000; 12(1): 23-27.
Porsteinsson AP, Tariot PN, Schneider LS
Seminars in clinical neuropsychiatry.. 1997 October 2 (4):265-275. Epub 1900 01 01.
Tariot PN, Schneider L, Porsteinsson AP
Postgraduate medicine.. 1997 June 101 (6):73-6, 81, 84 passim. Epub 1900 01 01.
Suicide and Alcoholism: Distinguishing Alcoholics with and without Comorbid Drug Abuse.
Porsteinsson, A.; Duberstein, P.; Conwell, Y.; Cox, C.; Forbes, N.; Caine, E.D.
American Journal of Addictions. 1997; 6: 304-310.
Porsteinsson AP, Tariot PN, Erb R, Gaile S
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry.. 1997 5 (4):344-51. Epub 1900 01 01.
Porsteinsson A, Duberstein PR, Conwell Y, Cox C, Forbes N, Caine ED
The American journal on addictions. 1997 6 (4):304-10. Epub 1900 01 01.
Tariot P, Gaile SE, Castelli NA, Porsteinsson AP
New directions for mental health services. 1997 (76):109-23. Epub 1900 01 01.
Woolf PD, Nichols D, Porsteinsson A, Boulay R
Thyroid : official journal of the American Thyroid Association.. 1996 October 6 (5):451-6. Epub 1900 01 01.
Measurement of Behavioral Disturbance in Chronic Care Populations.
Tariot PN; Teri L; Porsteinsson A; Weiner;.
Journal of Mental Health Aging. 1996; 2(3): 213-229.
Atomoxetine Augmentation of Cholinesterase Inhibitor Therapy in Alzheimer's Disease.
Mohs RC, Shiovitz TM, Tariot PN, Porsteinsson AP, Baker KD, Feldman PD.
Neurology. .
Depression and Cognitive Disorders in Older Primary Care Patients.
Boyle LL; Porsteinsson AP; Cui X; King DA; Lyness JM.
Journal of Clinical Psychiatry. .
Books
Neurodegenerative Dementias (1999)
Chapter: Nursing Homes and Long Term Care.
Authors: Porsteinsson, AP; Tariot, PN;
Publisher: McGraw-Hill Companies, New York 1999
Measurement in Elderly Chronic Care Populations (1997)
Chapter: Measurement of Behavioral Disturbances in Chronic Care Populations.
Authors: Tariot, PN; Porsteinsson, AP; Teri L; Weiner MF;
Publisher: Springer Publishing Company, Incorporated, New York 1997
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Patient Comments
Dr. Anton is one of the best doctors of any specialty I have ever encountered.
Apr 29, 2024
Glad to have Dr P as my provider
Apr 28, 2024
[...] If I were to recommend treatment for someone else, I would refer them to the office not to this provider.
Apr 15, 2024
Good.
Sep 05, 2023
We/you are so blessed & fortunate to have Dr. Anton as a provider. Without equal to any provider I've worked with professionally, or experienced as a provider in my 60 years of nursing practice!!.
Aug 10, 2023
I have recommended him several times. I believe he is the best specialist for dementia in town.
Aug 09, 2023
Dr. P is one of the best specialists I've seen. He's my neurologist for life!
Aug 02, 2023
Good experience.
Jul 13, 2023
He is a great dr.
Jul 12, 2023
I think Dr. P is world class. He and his team are helping us through a very difficult time.
Feb 21, 2022
This will be a long treatment issue and provider was very good at explaining that.
Feb 02, 2022