Fig. 5.

Details of specific cortical connections. A Laminar pattern of labeling in V1 after V6 tracer injection. Caudal part of a parasagittal section taken at the level indicated on the brain silhouette at the bottom-right. Each single black dot represents a retrogradely labeled cell. The inset 'a' showing an enlargement of a part of the posterior branch of calcarine fissure (squared area on the section). Light blue triangles are single retrogradely labeled cells. Numbers and letters indicate the cortical layers in V1. B Frontal connections of areas PEc, V6Av, and V6Ad. Frontal lobe with cells (colored dots) labeled after retrograde tracer injection in areas PEc (green; three injections), V6Av (orange; two injections), and V6Ad (pink; three injections). Data obtained from Gamberini et al. (2009); Bakola et al. (2010); Passarelli et al. (2011) C Parcellation of agranular frontal cortex showing, overimposed, the representations of various body parts. Data modified from the following studies: Matelli et al. (1991); Luppino and Rizzolatti (2000). Other details and abbreviations as in Figs. 1 and 2