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Lynn M. Grattan, PhD

Academic Title:


Primary Appointment:


Secondary Appointment(s):

Epidemiology & Public Health

Additional Title:

Division Head of Neuropsychology; Director Neuropsychological Diagnostic and Research Laboratory


Bressler Research Building

Phone (Primary):

410 705-5874

Phone (Secondary):

410 328-6297


410 706-0456

Education and Training

  • BA Psychology and Sociology, Seton Hill University
  • Ph.D. Psychology, University of Connecticut
  • Clinical Psychology Internship Training: Brown University Clinical Psychology Internship Program, Neuropsychology Track.
  • Post Doctoral Training: Three years in both clinical and research neuropsychology and behavioral neurology in the Department of Clinical Neurosciences (Neurology, Neurosurgery, Neuropsychiatry) at the Brown University School of Medicine. 


Dr. Grattan has been leading NIH funded research studies of the neuropsychological and behavioral impacts of a wide variety of neurological, neurosurgical, and neurotoxic insults on the human brain for more than 25 years.  This includes studies of memory disorders, frontal lobe functions and dysfunction, and other domains of cognitive disruption as the result of neurologically related illness, injury, or toxin exposures in children, adults, and geriatric groups. More recently, Dr. Grattan's research has focused on people living in coastal communities in distress due to the risk of exposure to marine toxins or other environmental hazzards.  She has conducted studies of putative toxin exposure on Maryland's Eastern Shore, ciguatera poisoning in the U.S. Virgin Islands, and is currently working with several Native American and non-Native American Communities in the Pacific Northwest who are at risk of Amnesic Shellfish Poisoining.  Dr. Grattan has also led studies of the human health impacts and psychological resilience after the Deepwater Horizon Oil Spill in the Gulf of Mexico.  The latter studies were designed and implemented using a Community Based Participatory Research model. 

Research/Clinical Keywords

neuropsychology, behavioral neurology, memory loss, executive functions, frontal lobe disorders, environmental toxins, public health, minority health.

Highlighted Publications

Grattan, LM, Oldach, D, Perl, TM, Morris, JG (1998). Problems in learning and meory occur in persons with environmental exposure to waterways containing toxin-producing Pfiesteria or Pfiesteria-like dinoglagellates. Lancet, 352, 532-539

Grattan, LM, Roberts, SM, Mahan, WT, McLaughlin, P, Otwell, WS, Morris, JG. (2011) The early psychological impacts of the Deepwater Horizon Oil Spill on Florida and Alabama communities.  Environmental Health Perspectives, 119, 838-843.

Abramson, DM, Grattan, LM, Mayer, B. et al., (2015). The Resilience Activation Framework: a coneptual model of how access to social resources promotes adaptation and rapid recovery in post-disaster settings. Journal of Behavioral Health Services and Research, 42(1), 42-57. 

Grattan, LM, Boushey, CJ., Tracy, K., Trainer, VL, Roberts, SM, Schluterman, N, and Morris, JG (2016). The association between razor clam consumption and memory in the CoASTAL Cohort. Harmful Algae, 57, 20-25.

Grattan, LM, Brumbach, B, Roberts, SM, Buckingham-Howes, S, Toven, AC, Morris, JG (2017). "Bouncing back" after the Deepwater Horizon Oil Spill. Disaster Prevention and Management, 26, 122-133.



Clinical Specialty Details

  • Licensed Psychologist, State of Maryland.
  • Specialty: Neuropsychological diagnostic assessemnt of patients with neurological illnesses such as seizure disorder, multiple sclerosis, stroke, and known or suspected dementia; traumatic brain injury; and neurosurgical interventions. 

Grants and Contracts



Rapid Risk Assessment of Chronic Domoic Acid Exposure in WA Razor Clam Harvesters

A risk assessment survey of recreational razor clam harvesters to determine whether their levels of consumption are of concern and conduct a formal toxicological risk assessment of exposure to inform current policy and protective measures.

Role: Principal Investigator

NIH/NIEHS 1R01ES01249                

Domoic Acid Neurotoxicity in Native Americans

A prospective, epidemiological cohort study to determine the potential human health impacts of long term, Low-level exposure to domoic acid in Native Americans in the Pacific Northwest.

Role: Principal Investigator

 Maryland Department of Health and Mental Hygiene  M00B440040420                               

Research Program for Maryland Center of Excellence on Problem Gambling

The purpose of this grant is to establish a comprehensive program of research and evaluation for the Maryland Center of Excellence on Problem Gambling.  I have designed the neuropsychological assessment protocol for this study and my laboratory conducts the examinations as well as inteprets the findings. 

Role: Co-Investigator



DHHS HITEP1300110-01-00                                                                                                    

 Modeling the Interplay of Individual and Community Resilience for Recovery from Hurricane Sandy

The goals of this study were to describe the psychological status of Maryland watermen post hurricane and identify the extent to which individual resiliency attributes predict optimal outcomes and quality of life.

Role: Principal Investigator


NIH/NIEHS U19 ES020683                                                   

Health Impact of Deepwater Horizon Spill in Eastern Gulf Coast Communities: Individual and Family Resilience

The purpose of this study is to examine the mental health impacts of the Deepwater Horizon Oil Spill on Eastern Gulf Coast residents, test a resources model of recovery, and identify the characteristics and predictors of favorable outcome.

Role: Lead Investigator, Project 1