搜索结果: 1-15 共查到“narcosis”相关记录20条 . 查询时间(0.328 秒)
Reversal of nitrogen narcosis in rats by helium pressure
nitrogen narcosis nitrogen helium animal rat
2009/7/20
Changes in operant behavior were obtained for rats breathing nitrogen, helium, and both gases combined. Exposure to 12.9 ATA of nitrogen (O2 maintained at normobaric value of 0.2 ATA) produced complet...
The purpose of this review is to examine the validity of change in the cortical evoked response as a measure of inert gas narcosis in humans. Three criteria are defined which must all be met if a nonb...
Roles of nitrogen,oxygen,and carbon dioxide in compressed-air narcosis
human nitrogen carbon dioxide oxygen compressed-air narcosis
2009/7/20
In an attempt to determine the roles of nitrogen, oxygen, and carbon dioxide in compressed-air narcosis, the effects on performance (mental function and manual dexterity) of adding CO2 in various conc...
Lithium effects:protection against nitrogen narcosis, potentiation of HPNS
nitrogen narcosis high pressure nervous syndrome Lithium drug
2009/7/17
The effect of either 10, 8, or 6 meq/kg of intraperitoneal lithium chloride or sodium chloride on the loss of righting response (RR50) produced by 18.2 ATA N2-ATA O2 was examined in rats. Results were...
The effects of inert gas narcosis on behavior before unconsciousness are reviewed with particular attention to four issues. The first is whether the qualitative behavioral effects of all inert gases a...
Effects of ethanol and amphetamine on inert gas narcosis in humans
drug human ethanol alcohol narcosis amphetamine
2009/7/14
The effects of ethyl alcohol (1 ml/kg body weight), dextroamphetamine (15 mg), and nitrous oxide (20percent) on reaction time were investigated in 6 subjects with a 2-, 3-, and 4-choice serial reactio...
A study was conducted to examine the vestibular ocular reflex (VOR) during narcosis. The slow phase velocity of the nystagmus was measured in six subjects by means of electronystagmography during the ...
Effects of inert gas narcosis on rehearsal strategy in a learning task
model narcosis learning adaptation
2009/7/14
Two experiments were conducted to examine the effects of 35% nitrous oxide (N2O) on rehearsal strategy while learning a list of words in a free-recall paradigm. In experiment 1, the subjects learned t...
Relationship between the event-related brain potential P300 and inert gas narcosis
narcosis cognitive inert gas narcosis
2009/6/12
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...
We examined the perception of thermal comfort in six male subjects immersed in water at 28 degrees C (study I) and 15 degrees C (study II), breathing either room air (AIR) or a normoxic mixture contai...
Dissociation of the behavioral and subjective components of nitrogen narcosis and diver adaptation
nitrogen narcosis hyperbaric chamber adaptation
2009/6/12
We investigated adaptation to nitrogen narcosis by compressing 11 highly experienced divers in a hyperbaric chamber to the equivalent of 54.6 meters of seawater once a day for 5 consecutive days. The ...
Arterial baroreflex control during mild-to-moderate nitrous oxide narcosis
saturation narcosis hyperbaric air
2009/6/8
We hypothesized that light-to-moderate inert gas narcosis might play a role in bradycardia in divers by altering sensitivity or response dynamics of arterial baroreflexes. Carotid-cardiac and carotid-...
Change in strategy of solving psychological tests:evidence of nitrogen narcosis in shallow air-diving
Analysis of Variance Atmospheric Pressure Atmosphere Exposure Chambers Diagnosis
2009/6/4
The depths from 10 to 30 m are usually not considered narcotic in scuba air-diving, and evidence of psychomotor disturbances attributable to nitrogen narcosis at these depths is weak and contradictory...
Effects of NMDA administration in the substantia nigra pars compacta on the striatal dopamine release before and after repetitive exposures to nitrogen narcosis in rats
hyperbaric nitrogen nitrogen narcosis striatal dopamine release repetitive exposure animal rat NMDA receptor Dopamine
2009/6/2
Hyperbaric nitrogen-oxygen exposure developed in rats a decrement of the striatal dopamine release, which was reversed by repetitive exposures. This dopamine decrease could be the result of the antago...
Recent neurochemical basis of inert gas narcosis and pressure effects
DIVERS Narcosis Anesthesia lipid theory neurotransmitter receptors high pressure nervous syndrome HPNS neurochemical basal ganglia motor locomotor cognitive function GABA GABAa GABAergic neurotransmission
2009/6/2
Compressed air or a nitrogen-oxygen mixture produces from 0.3 MPa nitrogen narcosis. The traditional view was that anaesthesia or narcosis occurs when the volume of a hydrophobic site is caused to exp...