Effects of EMF on perception

After the weekend's private house investigation, one part of which involved a bedside clock-radio that emitted EMF on the scale of a small power station, led me into a little research on the effects of EMF on the brain.

If you look in Wikipedia under 'God Helmet' (you ought to if you don't already know what this is) there's a link to Transcranial Magnetic Stimulation, which I'd never heard of.

As a medical treatment (and if I'm reading the article correctly - it's fairly heady (pardon the pun) ) it's still in the 'fringe' area, but it does suggest that magnetic fields applied to the brain definitely have effects. The field strength they're talking about is in the range of 1-10 mT (milliTesla) = 10-100 Gauss. (Anyone who knows their physics - please correct me if this conversion is wrong.)

We were reading 100 milliGauss at about 20cm from the clock-radio, so they're talking about fields from 100 to 1000 times stronger than thins for TMS therapy, and concentrated on certain parts of the brain. However, Michael Persinger's research with the Koren (God) Helmet involved much lower EMF strengths close to the skull (but they were "weak but complex", according to Persinger).

Anyway, this is an interesting field (pardon pun) of research: does EMF of the magnitude and nature found in home/workplace situations have any chance of affecting human perception and/or behaviour?
Any thoughts or experimental results?

Link: God Helmet video