Ann Elise Lindeis

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A predominant feature of hypoxia is that it slows information processing. Evidence is accumulating that early visual mechanisms are an important locus of this slowing. Audition is believed to be insensitive to hypoxia, implying relatively less slowing with auditory stimuli. Subjects breathed air or a low oxygen mixture (65% arterial oxyhemoglobin(More)
It is known that inert gas narcosis slows both reaction time (RT) and the event-related brain potential P300 in a correlated and dose-dependent manner. On the assumption that P300 reflects the time to evaluate a stimulus and RT reflects this time plus the time to select and execute a response, these results have been taken to indicate that the locus of the(More)
Positive pressure breathing (PPB) is a survival system that delivers high-pressure oxygen and body counterpressure in the event of cockpit depressurization at high altitude, but the ability of aircrew to perform an emergency "get-me-down" maneuver with this system is unknown. To address this question, a serial choice reaction time (RT) task was administered(More)
To determine if the stimulus identification stage of information processing is slowed by hypoxia, eight highly trained subjects performed a mental rotation task involving same or different responses to pairs of two-dimensional figures rotated in the picture plane. They breathed low oxygen mixtures adjusted to maintain arterial blood oxygen saturation at(More)
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