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The difference between “recruitment” and tinnitus

Posted Mar 22 2010 2:56am 5 Comments

I just want to be very clear on the difference between these two phenomena.

They’re both auditory sensory related, but have some significant differences.

Tinnitus is best described as phantom sounds. The sounds are audible to the one affected individual only, and there is no way to measure tinnitus scientifically. Only thing I can think of, is if they put me in a MRI-scanner for real-time recording and measure the activity in the parts of my brain that deals with audio-interpretation. Rather complex, I would imagine.

Tinnitus is a very subjective experience, someone might have a very high threshold of coping with heavy amounts of tinnitus, while others gets really disturbed and cannot deal with it. Tinnitus can destroy peoples lives. Psychological disturbances and substance abuse (to “num” the tinnitus, or sedate the brain in order to be able to fall asleep) is likely symptoms of severe tinnitus.

Tinnitus can sound like everything. To me it has varied, it has become better on the ear where I received my first CI, but I still have tinnitus there. Right now I have a triple-tinnitus: left ear (without CI) I can hear this hum (high current electrical power station or electrical relay station humming) as well as a sound that is resembling to a constant howling snow-storm. My right ear is pretty well masked by the CI, but the humming might appear when I’m tired, and at night, when I take off the CI, I hear this kind of FM radio crackling noise. At the worst, it is an unbelievable cacophony of all sorts of sounds. Sometimes I think I even hallucinate tinnitus while having tinnitus. It’s hard to grasp, since it is a “phantom”. It is synaptic neuron activity in the nervous system, (of which the brain is a part), which in turn is interpreted as sounds, when it is in fact NOT sounds. How weird isn’t that?

Recruitment is something else; when outside sounds enter my ear canal, and then causes vibrations to the drum and consequentially the gel-substance within my cochlea, the hair cells are triggered. Upon this triggering, the “recruitment” happens due to several factors: too much dB (meaning more energy than the hearing sense can or should handle), and massive loss of hair-cells (the destruction of hair-cells can be caused by a number of reasons: ototoxic substances, overexposure to too powerful sounds over time, various diseases that affect inner ear physiology, physical damage (violent accidents) and progressive hearing loss.

Tinnitus has no cure, other than learning to live with it by way of stress management, and some mental tricks to take control of thought patterns and secondary reactions to the tinnitus. Everybody can learn to live with tinnitus, and can have a good life with it. Substance abuse is NOT a solution, it is only slow suicide. Seek help from professionals! If your doctor doesn’t take you seriously, go to another doctor! Do that, until you’re taken seriously!

As for recruitment, there are solutions to remedy the situation. Turn off amplification equipment like hearing aids when experiencing it. Turn the sound down. In my case, the recruitment was so bad, that when adjusting my hearing aid to a comfortable level, I felt I didn’t hear anything anymore. I have endured recruitment for so long that I had gotten used to it, and even built up a tolerance for it!

In severe cases, get a Cochlear Implant in order to provide sufficient electronic delivery of sound signals to your auditory receptors, aka hair cells.

Comments (5)
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I am 52, was a barber/hair stylist for years with exposure to various  blow dryer and clipper noise. Since a toddler (at least) had some memory of overly loud sounds, and known since my very early 20's some hearing loss.  Now, have 50+% hearing loss...but more debilitating has been recruitement.  I am now no longer able to work, and my limited social life is almost totally gone.  I have so far been unable to 'convince' and 'prove' my disability to either my privately paid (by me, over the years) disability company plan, and have not received SSDI.  I was, however, refused by the state of Florida any hope of re-education for ANY type of work.   Does anyone else have recruitement so badly that even their own voice hurts their head?  Mine is that bad since the final 'pop' of built up pressure in one ear during a plane trip.


 Can't help you spesifically, but see if you can find any specialists in US. Try this for starters:

 Hope you find a physician who understands and knows about recruitment!

Good luck!

I will check the site, and appreciate it.  I am close with my audiologist, and HE has always been amazed at how bad my recruitement is/how narrow my band of hearing range is.  Friday I go to him for a current update and for him to write a letter I can send copies of to the disability people.  The only otol. I have seen is in contract with the state, and he does not WANT to admit I have anything but severe hearing loss.  He either does not, or does not WANT to understand. 


Wellll....the site you gave me is this exact 'page'.  So much for that
Sorry, didn't understand that last comment of yours. You didn't find it helpful? It was the author of that blog who made me aware of recruitment, and you could ask him if he has any knowledge which might help you to get qualified assistance.
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