Figure 9.

Comparison of model and in vivo long-pass duration tuning. A, Dot raster display of the responses of a long-pass anti-coincidence model cell to different stimulus durations (15 trials per stimulus; mean standard input Poisson firing rate, 400 Hz; mean steep input Poisson firing rate, 250 Hz). B, Dot raster display of the responses of an in vivo long-pass DTN to variable duration pure tones presented at the characteristic frequency of the cell (15 trials per stimulus; 30 dB above threshold). C, D, Mean ± SE spikes per stimulus as a function of stimulus duration at four different CN Poisson input firing rates (C) or different SPLs relative to threshold (D). Four different Poisson firing rates were chosen to be analogous to four different acoustic SPLs. The legend in C lists the standard CN input Poisson firing rates driving the sustained excitation cells (prefaced with an “E”) and the steep CN input Poisson firing rates driving the adapting sustained inhibition cells (prefaced with an “I”). Refer to Materials and Methods for additional details. Note the decreased spike counts of both the model and in vivo long-pass DTNs as the stimulus magnitude increases. B and D were reprinted with permission [Faure et al. (2003), their Fig. 4C].