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some behavioral effects of exposure to low doses of fe-56 particlesFuture missions in space (such as a mission to Mars) will involve long-term travel beyond the magnetic field of the Earth. As a result, astronauts will be exposed to radiation qualities and doses that differ from those experienced in low earth orbit, including exposure to heavy particles, such as Fe-56, which are a component of cosmic rays. Although the hazards of exposure to heavy particles are often minimized, they can affect neural functioning, and as a consequence, behavior. Unless the effects of exposure to cosmic rays can somehow be reduced, their effects on the brain throughout long duration flights could be disastrous. In the extreme case, it is possible that the effects of cosmic rays on space travelers could result in symptomatology resembling that of Alzheimer's or Parkinson's diseases or of advancing age, including significant cognitive and/or motor impairments. Because successful operations in space depend in part on the performance capabilities of astronauts, such impairments could jeopardize their ability to satisfy mission requirements, as well as have long-term consequences on the health of astronauts. As such, understanding the nature and extent of this risk may be vital to the effective performance and possibly the survival of astronauts during future missions in space.
Document ID
Document Type
Conference Paper
Rabin, Bernard M.
(Maryland Univ. Baltimore County Catonsville, MD United States)
Joseph, James A.
(Tufts Univ. Boston, MA United States)
Shukitt-Hale, Barbara
(Tufts Univ. Boston, MA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Publication Information
Publication: Proceedings of the First Biennial Space Biomedical Investigators' Workshop
Subject Category
Aerospace Medicine
Funding Number(s)
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20000020485Analytic PrimaryProceedings of the First Biennial Space Biomedical Investigators' Workshop
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