uncle vikin said:
.So knowing that the limbric part of the brain has alot to do with emotions it seems this is what causes the distress and anxiety or obsession over T.
Is this what habituation is ... Does the correct use of TRT speed up Habituation.If so why is this not a standard treatment for tinnitus by doctors and insurance companys So foul up-in cochlea-----------------------------limbric area of brain some -where between these two parts of the body there might possible be a cure ^ for tinnitus,but most definitely Habituation.Is this the areas of the body that is the most accepted as the possible cause of tinnitus.
I'm not a medic or researcher, so this will only be a brief reply - I will see if I can get a more technical answer if you prefer.
If we didn't filter which stimuli to respond to, we'd be swamped by information and wouldn't actually be able to perform any kind of higher function. One mechanism of that filtering is
habituation, which has been described by Kandel as follows (as quoted in
Tinnitus: a multi disciplinary approach by Baguley, Andersson, McFerran and McKenna)
In habituation, the simplest form of implicit learning, an animal learns about the properties of a novel stimulus that is harmless. An animal first responds to a new stimulus by attending to it with a series of orienting responses. If the stimulus is neither beneficial or harmful, the animal learns after repeated exposure, to ignore it.
Jastreboff et al used the neurophysiological model (ie involving the limbic system and the autonomous nervous system) in the development of Tinnitus Retraining Therapy, but they have agreed that TRT is not the only treatment that fits this model.
There have been some criticisms of both the neurophysiological model and TRT, which is is probably why TRT is not a standard treatment. I'm going to quote here from
Tinnitus: a multi disciplinary approach and if anyone would like to read further on the topic, this book discusses both the model and TRT in some detail. Whilst written for professionals, it's pretty accessible (by medical textbook standards).
The assertions made in the Jastreboff neurophysiological model are also not as well supported as sometimes claimed. For example, it is not clear that tinnitus can be likened to a tone to which the patient is classically conditioned. Further, the role of the limbic system in tinnitus distress might seem hard to contest, but imaging research has not been fully consistent with this theory...Indeed, from a learning psychology point of view, there is much left to explain with the neurophysiological model, such as the temporal properties and actual instances when aversive reactions have become conditioned (McKenna, 2004). Personal attributes such as experience and personality are marginalised in the Jastreboff neurophysiological model, and this does not fit well with observations in the clinic.
However, the authors do end the discussion with:
Despite the many criticisms that have been levelled against the Jastreboff neurophysiological model of tinnitus its basic principles are still used by many, perhaps the majority, of tinnitus clinicians worldwide, more than two decades after its publication. It is difficult to overemphasise the improvements in tinnitus management that developed as a result of this work.