Brain Injury Rehabilitation Specialists

Neuropsychological Services

On With Life offers neuropsychological evaluation and consultation services on an outpatient basis for people living with a brain injury or other central nervous system dysfunction. Through the process of neuropsychological evaluation, a neuropsychologist studies brain-behavior interactions, the health of the individual's brain, and the problems that brain dysfunction can cause. 


Dr. David Demarest, our in-house neuropsychologist uses scientific techniques to determine preexisting characteristics of the individual and provide an index of the extent and type of changes brought about by the injury or condition. All evaluations include a comprehensive, detailed neuropsychological report and are provided in a quick, timely manner. An assessment of this type documents the patient's functional strengths and weaknesses and an evaluation is made regarding: 

  • Deficiencies caused by brain damage versus preexisting cognitive weaknesses
  • Strengths in cognitive and psychosocial skills
  • Comprehensive diagnostic understanding of the biopsychosocial impact of the injury
  • Extent of the brain injury and prognosis for recovery
  • The specific course of action needed for best therapy planning
  • Predictions and recommendations for independence in work, school, and home

"As a Neuropsychologist, my goal is to help individuals that I work with, and those who refer to me, answer questions pertaining to the condition of the patient's brain and the difficulties they are presenting with," explains Dr. Demarest.

Who we serve

Dr. Demarest works with people of all ages (in FY15 he evaluated 67 individuals, ranging in age from 2 to 67 years old) with central nervous system dysfunction, including:

  • Traumatic or acquired brain injury
  • Cerebrovascular accident (stroke)
  • Spinal cord injury
  • Alzheimer's and other dementias
  • Progressive neuromuscular conditions such as Cerebral Palsy and related disorders
  • Evaluation of children and adolescents with neurodevelopmental disorders (LD, ADHD, autism)



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