Fig. 9
Major divisions of ipsilateral striatum based on sensory and motor cortical projections. a k-means clustering of striatal pixels based on mean normalized fluorescence intensity from each of the eight injection site clusters for both IT-type and PT-type pyramidal neurons. The striatal clusters are illustrated as five colors (legend, at bottom) in evenly spaced planes every 0.25 mm from anterior (top left) to posterior (bottom right). Scale, 1 mm. b The fraction of the output from each of the eight injection site clusters to a given striatal division from IT-type projections. Graphs are divided into sensory (left), motor (center), and frontal (right), with all areas together at far right. c The fraction of the output from each of the eight injection site clusters to a given striatal division from PT-type projections, presented as in b. d A comparison of the striatal divisions based on k-means clustering (left) to the pattern of normalized sensory (red), motor (green), and frontal projections (blue), presented as an RGB image (right). Scale, 1 mm
