THE EFFECTS OF HYPOXIA ON P300 AND REACTION TIME

Authors
  1. Fowler, B.
  2. Kelso, B.
  3. Landolt, J.P.
  4. Porlier, G.
Corporate Authors
York Univ, Downsview ONT (CAN) Dept of Physical Education;York Univ, Toronto ONT (CAN) Dept of Psychology;Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The experiment investigated the effects of three levels of arterial oxyhemoglobin saturation (SaO2 of 75%, 70% and 65%) on reaction time (RT) and P300 latency and amplitude. Ten subjects responded to visually presented male or female names in an oddball paradigm with accuracy controlled at a high level. Hypoxia increased both RT and P300 latency in a dose-related manner and these variables were strongly correlated. Hypoxia did not influence P300 amplitude. The increase in P300 latency is interpreted as further evidence that hypoxia slows stimulus evaluation processes and that, under the right circumstances, P300 could be used to index the effects of hypoxia on performance.
Report Number
AGARD-CP-432-PAP-16 — @Paper presented at the Aerospace Medical Panel Symposium held in Trondheim, Norway, 25-29 May 1987; CONTAINED IN 88-03414
Date of publication
15 Feb 1988
Number of Pages
7
DSTKIM No
88-03401
CANDIS No
56621
Format(s):
Hardcopy;Originator's fiche received by DSIS

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