Figure 3
From: Neural correlates of vocal initiation in the VTA/SNc of juvenile male zebra finches
Type-1 and type-3 neurons exhibited phasic syllable-related activity selectively at the first syllable. (a) Example of a type-1 unit showing significantly higher phasic activity selectively before the first syllable onset of the song bout. Top panels show spectrograms and amplitude oscillograms of each syllable. Bottom panels show raster plots and spike rate histograms aligned to each syllable. From left to right, each column shows the raster plot and spike rate histogram of the same neuron aligned to the first, second, third, fourth, fifth, and final syllable. Gray shadings indicate the range from − 50 to + 50 ms of each syllable. Data is from the same single unit as in Fig. 1a. (b) Example of a type-2 unit showing sustained firing activity. Data is from the same single unit as in Fig. 1b. (c) Example of a type-3 unit showing significantly lower phasic activity selectively at the first syllable onset. Data is from the same single unit as in Fig. 1c.
