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Updated: Aug 11, 2026
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Training Rats to Voluntarily Dive Underwater: Investigations of the Mammalian Diving Response
Published on: November 12, 2014
Mood states during a successful world record underwater diving attempt
Edwin J Herbert1, Justus R Potgieter
1Department of Sport Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch 7602, Republic of South Africa.
Perceptual and Motor Skills
|February 24, 2006
Summary
This study monitored a diver's psychological state during 10 days of submersion. Mood profiling revealed no psychological disintegration, with fatigue increasing and vigor decreasing, suggesting it's a useful tool for monitoring acclimatization.
Area of Science:
- Psychology
- Human Physiology
- Environmental Medicine
Background:
- Understanding the psychological impact of prolonged submersion is crucial for diver safety and performance.
- Acclimatization processes in extreme environments require careful monitoring of mental well-being.
Purpose of the Study:
- To assess the psychological mood states of a diver during an extended period of submersion.
- To evaluate the utility of the Profile of Mood States (POMS) as a monitoring tool for acclimatization.
Main Methods:
- A single diver's mood states were assessed daily over approximately 10 days of submersion.
- The Profile of Mood States (POMS) questionnaire was administered, measuring components like Depression, Anger, Confusion, Fatigue, Vigor, and Esteem.
Main Results:
- No significant signs of psychological disintegration (Depression, Anger, Confusion) were observed.
- A notable increase in Fatigue scores and a decrease in perceived Vigor were recorded over the submersion period.
- Self-Esteem scores remained consistently high throughout the study.
Conclusions:
- The Profile of Mood States (POMS) appears to be a sensitive indicator of physiological and psychological changes during submersion.
- Mood state profiling can serve as a valuable tool for monitoring the acclimatization process in divers and potentially other extreme environment exposures.
