Spiking network optimized for word recognition in noise predicts auditory system hierarchy
Fig 9
Optimal temporal resolution that maximize word recognition accuracy in noise.
(a) Word accuracy rate as a function of spike train temporal resolution (bin widths 0.5–100 mms) and SNR (-5 to 20 dB) for the optimal (a) and high-resolution networks (c). Each curve is computed by selecting the optimal scaling parameters for each SNR and measuring the word accuracy rate from the network outputs at multiple temporal resolutions. (b) Same as (a), except that global optimal scaling parameters were used for all SNRs tested. The temporal resolution that maximizes the word accuracy rate of the global optimal HSNN is 6.5 ms. (c) Word accuracy rate as a function of temporal resolution and SNR for the high-resolution network. The optimal temporal resolution for the high-resolution HSNN is 2 ms.