Skip to main content
. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Hear Res. 2010 Aug 18;270(1-2):134–142. doi: 10.1016/j.heares.2010.08.006

Figure 1.

Figure 1

Single-pulse spatial tuning curves. Each panel shows the distribution of neural activity along 16 recording sites in the inferior colliculus (ordinate) elicited by a single, biphasic pulse as a function of stimulus current level (abscissa) in decibels relative to 1 μA. The contour represents a cumulative discrimination index (d′) of at least one. The stippled area represents the range of ICC depths at which the neural response produced activity distinguishable from background with a criteria of d′=1; the right-most extent of each stippled area ends abruptly at the highest current level that was tested. Each panel shows the response to a single pulse with partial tripolar fraction that varied from 0 (left) to 1 (right) as indicated in the lower left corner of each panel. Responses are from cochlear implant channel 6 in GP3.