Portable EMG Equipment

[Julie Wetherell]

Could anyone recommend portable equipment for measuring facial muscle
EMG?  There's a Grass polygraph in the lab, but I'd like to collect data
in the field for my dissertation.  Ideally, the equipment would upload
data directly into a laptop computer.  And because I'm still a grad
student, economy is important.  Any suggestions?

Please send messages directly to me at wether at usc.edu.  Thanks!