The National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health, is looking for individuals to participate in clinical studies. Participating in clinical trials allows you to play an active role in research on the nature and causes of many disorders of the brain and nervous system, and to possibly help physician-scientists develop future treatments. The information below is designed to help you quickly learn about actively recruiting research studies for which you or someone you know may be eligible.

Description:

The VHIS - Phase III evaluation to be conducted approximately 30 years post-injury will be devoted to examining, cutting-edge cognitive neuroscience issues and will utilize state of the art technologies to address basic research questions in the following areas: (1) Functions of the human prefrontal cortex; (2) Cognitive neuroplasticity in the aging brain; (3) Memory; (4) Long-term behavioral and psychosocial outcome; and (5) Neurological studies, including an evaluation of post-traumatic epilepsy and repeat clinical measures from Phase - II. This testing will be complemented with structural neuroimaging, electroencephalogram (EEG) and molecular genetics. The goals of the VHIS - Phase III include providing clinicians and scientists new insights into the long term recovery of function following brain injury, the role of the prefrontal cortex in executive functions, better predictors of long term outcome (including cognitive, neurological, and genetic factors), and the effects of head injury incurred in youth on aging and the development of dementia.

Eligibility Criteria:

The researchers are seeking healthy CONTROL participants. Inclusion Criteria: - Vietnam Veteran - Served in active combat between 1966 - 1971 - Male Exclusion Criteria: - Any medical condition that would make participation detrimental to the control (i.e.: severe clinical depression, acute heart dysfunction, etc...) - A history of severe head injury, stroke, loss of consciousness, or other significant neurological, psychiatric or medical condition that would render the subject unsuitable for the VHIS testing battery.

Study Design:

Study Location:

Maryland