Extended Data Fig. 3: Ultra Sound Vocalizations (USVs) and OT neuronal activity.
From: Social touch promotes interfemale communication via activation of parvocellular oxytocin neurons

a, Histograms of USVs peak frequency distribution during CSI (top) and FSI (bottom). b, Examples of sound spectrograms showing USVs events classified as whistles, calls, or complex vocalizations. c, PSTHs of oxytocin neurons spiking activity aligned to USVs onset (red dashed line) show no significant time-locked correlation between them. d, Firing rate of oxytocin neurons 0-5 s before USV events versus 0-5 s after USV events showing no significant correlation (P = 0.24, n = 53 vocalisations, two-sided Wilcoxon test). e, Total number of USVs registered in 5 pairs (experimental and stimulus animal) of rats during OF, CSI, and FSI tests divided - according to their frequency and duration – in non-social (< 25 kHz), trills (< 10 ms), calls (> 10 ms, not modulated), and complex vocalizations (> 10 ms, frequency modulated or mixed). All data represented as mean + SEM.