Extended Data Fig. 5: Transient VP average neuronal responses are not strongly affected by the number of clusters in the k-means algorithm.
From: Dissociable roles of ventral pallidum neurons in the basal ganglia reinforcement learning network
Grouping of VP neuronal responses using different numbers of clusters in the k-means algorithm. The data points on the left depict the output of the PCA for the representative case of the reward trials. PC1 and PC2 are the first and second principal components, respectively. Clusters 1-4 represent the average VP responses in the different groups. Abscissa, time (-0.5 – 2 s). Vertical dashed lines indicate the times of cue onset; ordinate, firing rate in Hz, normalized by the mean discharge rate during the last 3 s of the ITI period. Shaded regions represent SEMs. N represents the number of VP cells in each cluster.
