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Effects of hyperbaric nitrogen-induced narcosis on response-selection processes

Recurso electrónico / electronic resource
MARC record
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001  MAP20140019212
003  MAP
005  20140530130413.0
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24500‎$a‎Effects of hyperbaric nitrogen-induced narcosis on response-selection processes‎$c‎Cédric Meckler...[et.al]
520  ‎$a‎Certain underwater circumstances carry risk of inert gas narcosis. Impairment of sensorimotor information processing due to narcosis, induced by normobaric nitrous oxide or high partial nitrogen pressure, has been broadly evidenced, by a lengthening of the reaction time (RT). However, the locus of this effect remains a matter of debate. We examined whether inert gas narcosis affects the response-selection stage of sensorimotor information processing. We compared an air normobaric condition with a hyperbaric condition in which 10 subjects were subjected to 6 absolute atmospheres of 8.33% O2 Nitrox. In both conditions, subjects performed a between-hand choice-RT task in which we explicitly manipulated the stimulusresponse association rule. The effect of this manipulation (which is supposed to affect response-selection processes) was modified by inert gas narcosis. It is concluded, therefore, that response selection processes are among the loci involved in the effect of inert gas narcosis on information processing.
7730 ‎$w‎MAP20100019818‎$t‎Ergonomics : the international journal of research and practice in human factors and ergonomics‎$d‎Oxon [United Kingdom] : Taylor & Francis, 2010-‎$x‎0014-0139‎$g‎03/02/2014 Volumen 57 Número 2 - febrero 2014