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Effects of a subanaesthetic concentration of nitrous oxide on memory and subjective experience: Influence of assessment procedures and types of stimuli

✍ Scribed by Robert I. Block; M. M. Ghoneim; James V. Hinrichs; Viney Kumar; Dhirendra Pathak

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 796 KB
Volume: 3
Category: Article
ISSN: 0885-6222
DOI: 10.1002/hup.470030405

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✦ Synopsis

Subjects (16 men and 16 women) breathing 30 per cent nitrous oxide in oxygen, or 100 per cent oxygen, were tested to see if the effects of nitrous oxide on memory varied with different types of auditory stimuli and memory-testing procedures. The drug produced substantial memory impairments. These impairments were milder in forced-choice recognition than in yes/no recognition and for certain stimuli (first names of each subject's close relatives), but were not influenced by several other variations in test procedures and stimuli. Additional assessments indicated that nitrous oxide produced numerous subjective effects including some that are characteristic of psychedelic drugs. Subjective rating scales of the kind frequently used in drug studies revealed sedation but not the other mood effects.

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