Adriano Botelho abotelho at mpcnet.com.br
Thu Jun 18 15:39:27 EST 1998

Have you searched at biological sciences bibliographical databases?  You
could find some links at the Science & Medicine section in my site.


Adriano (abotelho at mpcnet.com.br)

tob at world.std.com escreveu na mensagem ...
>Can anyone recommend a source where I could find out what effect, if
>any, ultrasound has on neurons? I mean other than the obvious effects,
>vibration and heat.
>When I search the web under the keywords "neuron" and ("ultrasound" or
>"ultrasonic"), all I find is a lot of stuff about bats' echolocation (*)
>and ultrasound in medical diagonstics. So let me make my area of
>interest clearer: If one were to isolate a live neuron and bombard it
>with sound, at what frequency(s), if any, will it do anything
>interesting, such as demonstrate a higher or lower action potential or
>excitation threshhold? Where can I find that out? Thanks.
>        Tom
>(*) Can you guess why that pair should get so many hits on echolocation?
>Cricket nerves are well studied. Bats eat crickets, which they find by
>echolocation. Therefore crickets are terrified of ultrasound, and this
>reaction is often used to study them. Amazing that that little
>co-incidence should generate so many hits.

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