Twenty firefighters with mTBI and mild emotional distress were treated with HBO at a relatively low pressure of 1.3 atmospheres absolute for 45 min a day for 20 consecutive day. The goal of the study was to evaluate the subsequent changes in the regional cerebral blood flow (rCBF) of the limbic system in these firefighters.
The results showed an increase in rCBF in the hippocampal and parahippocampal regions of the brain. This may explain the recent evidence that suggests the ability for HBOT to help neural activities in the human brain and subsequently improve symptoms of psychiatric disorders <view study>