"I'm hoping this functional brain scan may detect possible other deficits that my therapists can work on or am I overusing or underusing certain areas of my brain. "

I don't think any scanning system will be able to pinpoint issues like you are hoping. What these scans can do is confirm symptoms as real and not malingering. " The scan shows irregularities in the area where word finding is generated and you claim word fining struggles. It would appear you are not faking."

But, that same scan can show irregularities without any symptoms. But, it is rare to have real symptoms without scan evidence that backs it up.

I thought PTVS was Post Traumatic Vestibular Syndrome. Now I know better. But, I'll probably forget.