Key points are not available for this paper at this time.
1 ^*Recording electrodes should be free of inherent noise and drift. They should not significantly attenuate signals between 0. 5 and 70 Hz. Experimental evidence suggests that silver-silver chloride or gold disk electrodes held on by collodion are the best, but other electrode materials and electrode pastes have been used effectively, especially with contemporary amplifiers having high input impedances.
Sinha et al. (Mon,) studied this question.