Figure 5.

Dorso-ventral and medio-lateral stimulation profiles. (A) Depth profile of the effect of the conditioning stimulus in the cuneate on the response amplitude of the climbing fiber field response evoked by stimulation in the pyramidal tract (1 pulse, 150 μA, 1 Hz). The cuneate stimulation preceded the pyramidal tract stimulation by 70 ms (2 pulses, 20 μA, 1 Hz) and was applied at different depths as indicated. (B) Depth profile of the conditioning effect in electrode track made 250 μm lateral to the cuneate nucleus. Same stimulation parameters as in (A).