Changes in Reaction Times and Executive Decision-Making following Exposure to Waterborne Motion
Shattuck, Nita Lewis
Shattuck, Lawrence G.
MetadataShow full item record
A unique mission of the U.S. Marine Corps is the amphibious assault landing. These missions require transportation by small watercraft, exposing Marines to waterborne motion before landing. The timeliness and accuracy of their decisions once the Marines debark may well determine the outcome of an entire operation. This study assesses how warfighters’ performance is affected following exposure to waterborne motion in an amphibious vehicle. Sixty-one Marines were evaluated in four conditions: following one, two and three-hour exposures to waterborne motion and following a two-hour period in a stationary vehicle. Testing included performance on an obstacle course, a marksmanship course, and a cognitive test battery. Self-reported motion sickness levels were also assessed. Results showed no differences on the marksmanship and obstacle course performance. However, after two and three hours of waterborne motion exposure, Marines experienced reduced response times and poorer executive decision making as measured using the Automated Neuropsychological Assessment Metric.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Lee, Byron M. (Monterey, California. Naval Postgraduate School, 2012-09);With the cancellation of the Expeditionary Fighting Vehicle program by the Secretary of Defense in January 2011, the Marine Corps Combat Development and Integration Command started a revision of the core capabilities for ...
Shattuck, Nita Lewis; Shattuck, Lawrence G.; Matsangas, Panagiotis (SAGE, 2016);The Habitability Assessment Test (HAT) was designed to evaluate whether Marines exposed to waterborne motion in an amphibious vehicle experience reductions in combat effectiveness. A total of 61 active duty Unites States ...
Gelpi, Cynthia (Monterey, California. Naval Postgraduate School, 2013-03);The transport of Marines and their equipment over potentially rough seas occur often as part of assault landings. Seasickness can be disabling to troops taking part in assault landings. Significant gaps exist in our knowledge ...