Figure 9.

Conductance records of the EI/f cell shown in Figure 7 and Figure 8 evoked by a binaural stimulus with an IID of 0 dB that evoked facilitation (10 dB contralateral and 10 dB ipsilateral tones). A, Excitatory conductances evoked by monaural and binaural tones. The binaural excitatory conductance is equal to the summation of the contralateral and ipsilaterally evoked excitatory conductances. B, Inhibitory conductances evoked by monaural and binaural tones. The binaural inhibitory conductance is slightly smaller than the contralateral inhibitory conductance, suggesting that the strength of the inhibition evoked by the contralateral ear was reduced by a small degree when an ipsilateral tone of 10 dB SPL was introduced. C, Circuitry accounting for the excitatory conductances evoked by monaural and binaural stimulation. D, Circuitry accounting for the inhibitory conductances evoked by monaural and binaural stimulation.