H
Harris R. Lieberman
Researcher at United States Department of the Army
Publications - 298
Citations - 14052
Harris R. Lieberman is an academic researcher from United States Department of the Army. The author has contributed to research in topics: Population & Mood. The author has an hindex of 62, co-authored 280 publications receiving 12237 citations. Previous affiliations of Harris R. Lieberman include International Life Sciences Institute & University of Alabama at Birmingham.
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Journal ArticleDOI
Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training
Harris R. Lieberman,William J. Tharion,Barbara Shukitt-Hale,Karen L. Speckman,Richard T. Tulley +4 more
TL;DR: Even in the most adverse circumstances, moderate doses of caffeine can improve cognitive function, including vigilance, learning, memory, and mood state, and a dose of 200 mg appears to be optimal under such conditions.
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A review of caffeine's effects on cognitive, physical and occupational performance.
TL;DR: Repeated administration of caffeine is an effective strategy to maintain physical and cognitive capabilities, since most real-world activities require complex decision making, motor processing and movement.
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The effects of low doses of caffeine on human performance and mood
TL;DR: Single doses of caffeine gave to 20 healthy male subjects assessed various aspects of performance and self-reported mood states, as well as plasma caffeine concentration, and found that as little as 32 mg significantly improved auditory vigilance and visual reaction time.
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Microcomputer-based estimation of psychophysical thresholds: The Best PEST
TL;DR: A new, maximally efficient technique for measuring psychophysical thresholds (Pentland, 1980) has been implemented on the microcomputer and is the most efficient sequential parameter estimation technique possible.
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Severe decrements in cognition function and mood induced by sleep loss, heat, dehydration, and undernutrition during simulated combat.
Harris R. Lieberman,Gaston P. Bathalon,C M. Falco,F. Matthew Kramer,Charles A. Morgan,Philip J. Niro +5 more
TL;DR: This study quantifies the overwhelmingly adverse impact of multiple stressors on cognitive performance, mood, and physiologic parameters, during a continuous but brief military exercise conducted by highly motivated, well-trained officers.