Figure 2
From: Distinct timescales for the neuronal encoding of vocal signals in a high-order auditory area
Auditory responses to 60 repetitions of a single sequence (ABAB-Same series) and to 60 sequence variants (ABAB-Var series) in awake birds. Responses of a representative unit to the ABAB-Same (a) and the ABAB-Var (b) series used as auditory stimuli. Neuronal responses that are time-aligned with sequence spectrograms (ai and bi: the sequence repeated 60 times for the ABAB-Same example series and one sequence variant for the ABAB-Var example series) are shown as raster plots (aii and bii, 60 iterations, dark colors for the 10 first and 10 last trials) and peristimulus time histograms (aiii and biii; 10 ms bin width; for the 10 first (top) and the 10 last (bottom) trials). (c) Modulation of responses over the six successive blocks of ten trials (each block for the ABAB-Var series includes 10 variants of the auditory sequence). The RS values estimated the strength of the responses driven by the series used as auditory stimulus. Thick line indicates mean responses for the population of recording sites (n = 56). Hatched area represents SEM. (d) Adaptation rate (mean ± SEM) of responses computed over the 10 first trials did not significantly differ between the two series.
