Feature-specific prediction errors and surprise across macaque fronto-striatal circuits.

For the striatum we found a statistical trend that feature-specific RPEs were more frequently encoded by narrow-spiking neurons (which include the putative fast-spiking interneurons 34 , 35 ) than suggested based on the population distribution (chi-square test feature-specific RPEs: χ 2 = 3.02, p = 0.082, φ = −0.092) (Fig. 8h–j ).

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