I have never heard Tinnitus described as a neurological condition. I had pretty bad Tinnitus as a result of a jaw injury. It has gradually faded but it made sleeping difficult for a very long time.
She's fairly fresh out of school, and I haven't been able to filter out yet whether there is any new science, or if it's more of a trendy academic topic included in new textbooks, or even a new sales tactic by the hearing aid companies.