Fig. 4: Best modulation frequency.
From: Stimulus dependent transformations between synaptic and spiking receptive fields in auditory cortex
a An example of the modulation processing analysis. Top, STRFs’ best frequency was ~20.5 kHz. STRFs were plotted on the same absolute scale. The number of peaks included in computing each STRF was 851 for spikes, 925 for large PSPs, and 1155 for small PSPs. Bottom, the corresponding RTFs are located at the bottom of each STRF. The spectral modulation preferences for the example neuron were 0.56 cyc/oct (spikes), 0.10 cyc/oct (large PSPs), and 1.33 cyc/oct (small PSPs), which also indicate distinct modulation preferences for spiking and subthreshold activity. b Plots of bSMFs versus bTMFs for spikes (left), large PSPs (middle), and small PSPs (right) from neurons (n = 30/40) with significant STRF subfields for spiking, large PSP, and small PSP events. There were weak or moderate correlations (spikes: Pearson’s r = 0.28, p = 0.13; large PSPs: Pearson’s r = 0.53, p = 0.003; small PSPs: Pearson’s r = −0.19, p = 0.31). c Histograms of bTMFs for spikes (left), large PSPs (middle), and small PSPs (right). d Histograms of bSMFs for spikes (left), large PSPs (middle), and small PSPs (right).
