Current source density (CSD) analysis is a technique that provides information about the
time course and spatial location of transmembrane currents derived from a laminar
collection of evoked potentials. Restrictive conditions for acquisition of evoked potentials are
required in order to yield a one-dimensional CSD analysis that is an accurate estimate of
synaptic activity. Satisfaction of these conditions was assumed in recordings of tone-burst-
evoked potentials along the axis of symmetry (tonotopic) in the inferior colliculus of adult …