I sent Susan Shore an email asking her exactly the question being discussed now. Here was our conversation:
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Me:
Hi. I was wondering whether people who can't modulate their tinnitus would benefit from the device. My tinnitus is noise-induced but I can't modulate my tinnitus with head, jaw, or neck movements.
Dr. Shore:
We don't know that yet as we have only had people with somatic tinnitus in the trials. It is possible you can modulate if shown how by a professional.
Me:
First, thank you for the response. Is there at least anecdotal evidence that the device works with non-modulated tinnitus or has the device only been used in clinical trials? Forgive me if I sound ignorant of how this science business works!
Dr. Shore:
So far only in clinical trials so we don't know yet.
Me:
How long does it take for the device to work? Does it take weeks for any results to show?
Dr. Shore:
It depends on the person. I will not be able to continue to answer individual questions. You can look at the publication attached
Me:
Ok! I know you're a very busy person (thank you for the publication by the way)! Just one more question. Why did you specifically choose those who can modulate their tinnitus for participation in your trial? Why exclude those who cannot?
Dr. Shore:
It was a starting point as it involves somatosensory stimulation, so the first group was those who could modulate. This will be my last individual answer. I have added your name to our mailing list for updates later in the year.
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So the takeaway here appears to be "the amount of therapy or use of the device necessary to achieve results depends on the person; the amount of weeks within the clinical trial do not reflect the amount needed to heal" and "they really don't know whether it works on people who can't modulate their tinnitus; the only reason why they have that as a necessary condition is because the device involves somatosensory stimulation".
Considering that all forms of tinnitus involve hyperactive nerves, there is no reason to believe that the device won't work on any form of tinnitus. Even that which can't be modulated. It just hasn't been tried or tested so they have no idea. Furthermore, considering the subjectivity of success as well as the length of time needed to gain results, it doesn't look like they could've meaningfully tried anyways.
@Padraigh Griffin, you should read this.
For those of you interested in reading the publication, here it is: