Hi Want2bewell, these sites will explain those tests.

Somatosensory Evoked Potential-
http://www.allaboutbackpain.com/html...tics_ssep.html

Quanitive Sensory testing-
http://millercenter.uchicago.edu/lea...nt/index.shtml

EMG -Electromyogram -
http://www.medicinenet.com/electromyogram/article.htm

Brian