Changes in six measures of eye activity were assessed as a function of task workload in a
target identification memory task. Eleven participants completed four 2hr blocks of a mock anti-…

Five concurrent eye activity measures were used to model fatigue-related changes in
performance during a visual compensatory tracking task. Nine participants demonstrated …

Background It is unclear whether and how elite athletes process physiological or psychological
challenges differently than healthy comparison subjects. In general, individuals optimize …

Extreme environments requiring optimal cognitive and behavioral performance occur in a
wide variety of situations ranging from complex combat operations to elite athletic competitions…

Background Little is known about the neural basis of elite performers and their optimal
performance in extreme environments. The purpose of this study was to examine brain …

… I Requests for reprints should be sent to Karl F. Van Orden, Vision Department, Naval
Submarine Medical Research Laboratory, Groton, CT,06349-5900. This article and its …

Individuals who perform optimally in extreme conditions, such as elite military warriors, can
provide valuable insight into the neurobehavioral mechanisms underlying extraordinary …

… I Requests for reprints should be sent to Karl F. … Karl F. Van Orden is a lieutenant commander
in the US Navy at the Naval Health Research Center, San Diego, California. He received …

Understanding the neural processes that characterize elite performers is a first step to develop
a neuroscience model that can be used to improve performance in stressful circumstances…

Adrenergic responses during physical stress such as cold exposure have been reported to
differ from those responses observed during cognitive activity. Both the separate and the …