Depth profiles of auditory and spontaneous bursts are similar.

<p>(A) Multiunit depth profiles of individual visual, auditory and spontaneous bursts during deep anesthesia from recording in one mouse. Red squares denote onset of activity. Auditory and spontaneous bursts have similar depth profile, whereas they differ in comparison to visual evoked bursts. Images show color-coded histograms with 10ms bin size normalized to the maximum rate. Yellow dotted lines denote stimulus onset and offset. (B) Averaged multiunit depth profiles for activity onset. Individual depth profiles of each group were aligned to the earliest onset before averaging. Visual burst activity originates from the middle layers, whereas the onset of auditory and spontaneous burst activity is shifted towards lower layers of the visual cortex. Errorbars denote SD (n = 10). (C) LFP depth profiles of individual visual, auditory and spontaneous bursts during deep anesthesia from recording in one mouse. Yellow dotted lines denote stimulus onset and offset. (D) Averaged LFP depth profiles. Individual depth profiles of each group were aligned to the first positive peak of the upmost LFP signal (n = 10). Color-coded images were smoothed for better visibility.