Research Article

Plastic Change in the Auditory Minimum Threshold Induced by Intercollicular Effects in Mice

Figure 1

Inhibitory (a) and facilitatory (b) intercollicular effects on the responses of IC neurons. PSTHs showing the neuron responses to BF sound stimulus (horizontal bar under abscissa) delivered at 10 dB above MT before ((a)(A), (b)(A)), after ((a)(B), (b)(B)), and during recovery ((a)(C), (b)(C)) from the 30 min electrical stimulation (upward arrows under the abscissas). The RAFs of inhibited ((a)(D)) and facilitated ((b)(D)) neurons obtained before (unfilled circle), after (filled circle), and during recovery (dashed lines) from 30 min of electrical stimulation. : number of impulses in each PSTH. The BF (kHz), MT (dB SPL), and recording depth (μm) of the neurons were 16.5, 58.2, and 1200 for (a) and 12.2, 52.8, and 954 for (b).
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