A Trimix Saturation Dive to 660 Metres: Studies of Cognitive Performance, Mood and Sleep Quality,

Abstract

This paper reports psychological observations on men during a simulated (pressure chamber) dive to 660 msw using a gas mixture know as Trimix (He-O2-N2). Recent studies by Bennett (personal communication) have suggested that this mixture allows for faster compression with less impairment in performance than the mixture traditionally used (He-O2). Data were obtained from two divers on tests of cognitive performance, namely arithmetic ability, grammatical reasoning, perceptual speed, visuo-spatial manipulation and semantic processing. At maximum depth there was a severe blanket impairment of ability to perform any of the tests. However, at shallower depths, the impairments were not as marked, with performance at 300 msw close to that measured at surface pressure.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA116251

Entities

People

  • Alan D. Baddeley
  • Robert H. Logie

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Applied Psychology
  • Arithmetic
  • Biomedical Research
  • Compression
  • Content Addressable Memory
  • Decompression
  • Divers
  • High Pressure
  • Performance Tests
  • Physiology
  • Psychological Phenomena And Processes
  • Psychology
  • Questionnaires
  • Reaction Time
  • Reasoning
  • Respiration
  • Statistical Analysis

Readers

  • Computational Linguistics
  • Psychometric Testing or Psychological Assessment.
  • Underwater engineering and Marine Technology.