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Fig. 9. Can auditory inputs be gated? Intracellular recordings of SETi during
stimulation of descending pathways (A) and during pharmacologically elicited
motor activity using pilocarpine (B) or picrotoxin (not shown). Chirps (4.8
kHz 90 dB) were presented at 2 Hz repetition rate. Neither stimulation of
descending pathways nor pharmacological manipulation gated any auditory inputs
to SETi. In both cases a hyperpolarising current (5 nA) was injected to reveal
even small inputs.