What Researchers Did
Researchers used 32-channel electroencephalography (EEG) to track changes in cerebral activity in 11 subjects during hyperbaric oxygen exposure and subsequent decompression, comparing it to baseline.
What They Found
During oxygen breathing, brain activity showed an early fast delta decrease and a synchronous significant alpha increase in the posterior regions. After decompression, the delta relative power decrease was uniformly distributed over the cerebral cortex for up to 8 minutes, while alpha relative power was maximal in posterior regions for the first 2 minutes.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
A limitation of this study is the small sample size of 11 subjects, which may limit the generalizability of the findings.