eeg/emg software

[PSHS533 at UTXVM.CC.UTEXAS.EDU]

I wonder if anyone could help me find out about packaged software
for electrophysiological recording, especially EEG and EMG, for
either Mac or PC?  Is there such a thing?  Thanks,
 
                                     sondra.bland at utxvm.cc.utexas.edu