An embodiment of the present invention takes the form of a multielectrode
for recording a bioelectrical potential difference at a detection site.
The multielectrode includes a carrier that has an active electrode
surface and multiple reference electrode surfaces. The multielectrode
includes a plurality of recording pairs for recording the bioelectrical
potential difference at the detection site multiple times in response to
a single stimulus. The active electrode surface is a part of more than
one of the recording pairs. The recording pairs can be coupled to
processing apparatus for an improved signal-to-noise ratio of the
recorded bioelectrical-potential-difference recordings.