What Researchers Did
Researchers studied 24 diving students who underwent a hyperbaric chamber dive to a pressure equivalent to 36 meters of seawater for 35 minutes, testing their memory and manual skills.
What They Found
Divers showed significant impairment in delayed free recall and immediate free recall of words. In contrast, their manual dexterity and recognition memory were not affected during the dive.
Canadian Relevance
Although this was not a Canadian study, its findings are relevant to understanding the effects of hyperbaric exposure on divers, which can relate to conditions like decompression sickness, a Health Canada-recognised indication for hyperbaric oxygen therapy.
Study Limitations
The study's findings are based on a relatively small group of 24 diving students and a single specific dive profile, which may limit their generalizability to all divers or different diving conditions.