Minimum pulse widths.

[Peter Robinson]

I'm trying to find out what would be the minimum width of an electrical 
pulse applied to the skin surface, that would be felt by the person it 
was applied to.

Alternatively, the minimum energy required before the pulse is felt.

Any ideas or pointers to information sources would be appreciated.

TIA
-- 
Peter

Peter at oimsdnp.demon.co.uk
Peter.Robinson at oxinst.co.uk