[Neuroscience] Re: electromagnetic stimulation, then what?...

neuro-OT ta16 at sprynet.com
Fri Jul 28 11:48:57 EST 2006

konstantin kouzovnikov wrote:
> I need to confess. The other day I was on the topic of brain stimulation
> with a physicist who has never dealt with brain or brain tissue stimulation.
> During the conversation he asked me a simple question I was not able to
> answer in a laconic and elegant way. Can you help an ignorant?
> background: A solution for avoiding use of surface electrodes, in the past,
> aimed at stimulation of deep structures has been a topic of discussion. The
> information was provided that a current with various long wave frequency was
> used (10 to 100Hz)
> the question was: so, what's happening in the nuclei in question? why the
> nuclei becomes a/ excited or b/ inhibited when a particular
> current/frequency is applied?
> Clearly, my mumbo-jumbo didn't work even for me.
> Hence is my question:
> 1. why do we need a particular current/ frequency to excite/inhibit a
> particular nuclei? What exactly changes within a nuclei? ( as in immediately
> changes?)
> 2. why a specific surface electrode induced current excites/inhibits a
> specific, even a deep nuclei, but not much else?
> Thanks,
> Konstantin K.

I have read much regarding EM stim to the cortex, but I am not an
expert. The person you need to speak with is at Methodit Rehabilitation
Center (www.methodistonline.org) . His name is Dr. Stokic. He is
well-versed in this area.


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