Example of input discrimination and generation of new information.

<p>(A-C) Dependence of the mean spiking frequency, the mean subthreshold frequency and the mean subthreshold amplitude of the postsynaptic neuron on the depression level as given by <i>τ</i>_<i>rec</i>. The incoming stimuli consists of 8-spike bursts with a 30<i>Hz</i> intraburst spiking frequency (blue arrows in the power spectra) delivered through a dynamic synapse with <i>g</i>_<i>d</i> = 0.5<i>mS</i> and <math><mrow><mi>U</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>35</mn></mrow></math>. (D) Normalized power spectra corresponding to different depression levels in the simulations shown in panels A-C: <i>τ</i>_<i>rec</i> = 0.02<i>ms</i> (red), <i>τ</i>_<i>rec</i> = 100<i>ms</i> (green), <i>τ</i>_<i>rec</i> = 400<i>ms</i> (blue) and <i>τ</i>_<i>rec</i> = 800<i>ms</i> (magenta). (E-G) Response of the same neuron of panels A-C, but when an additional tonic spiking signal at 18<i>Hz</i> (yellow arrows in the power spectra) arrives through the static synapse with <i>g</i>_<i>s</i> = 0.05<i>mS</i>. (H) Normalized power spectra corresponding to different depression levels in the simulations shown in panels E-G: <i>τ</i>_<i>rec</i> = 0.02<i>ms</i> (red), <i>τ</i>_<i>rec</i> = 100<i>ms</i> (green), <i>τ</i>_<i>rec</i> = 400<i>ms</i> (blue) and <i>τ</i>_<i>rec</i> = 800<i>ms</i> (magenta). The gray arrow in the green power spectrum denotes a new output rhythm not related to frequencies present in the input nor in the intrinsic dynamics. Time series corresponding to the data shown in this figure are plotted in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0145830#pone.0145830.s004" target="_blank">S4 Fig</a>.