Researchers from Tel Aviv University published an article in PLoS ONE in January of 2013 on how hyperbaric oxygen treatment can resuscitate the dormant neurons around a stroke. This area around the stroke, or peri-infarction area may regain function decades after the stroke. The researchers correlated the effects of this treatment with CT and SPECT scans to identify the dead areas. It is very interesting that neuroplasticity is still possible even 20 years after a stroke.
It would be interesting to combine a number of therapies with hyperbaric oxygen such as infrared light, acupuncture, nutritional medicine, and neurofeedback.