Figure 3.

Simple STRF manipulations. Examples of the STRFs calculated from action potentials in the cortical neuron model for simple model structures to demonstrate the model is behaving as expected. (A) The cortical neuron received a simple excitatory connection from the cochlear model tuned with a center frequency of 5 kHz. (B) The cortical neuron received a simple excitatory connection from the cochlear model tuned with a center frequency of 2.5 kHz. (C) The cortical neuron received a simple inhibitory connection from the cochlear model tuned with a center frequency of 5 kHz. (D) The cortical neuron received a simple excitatory connection from the cochlear model tuned with a center frequency of 5 kHz, but the delay in transmission from the cochlea to the cortical neuron was increased from 5 to 55 ms. (E) The cortical neuron model contained two neurons, one that received input from the cochlear model tuned to 8 kHz and the second received input tuned to 3 kHz. The second neuron provided an inhibitory input into the first neuron. The STRF was calculated from the first neuron. (F) The cortical neuron model contained two neurons, one that received input from the cochlear model tuned to 8 kHz and the second received input tuned to 1.5 kHz. The second neuron provided an excitatory input into the first neuron. The STRF was calculated from the first neuron.