Intrinsic connections and architectonics of posterior parietal cortex in the rhesus monkey

摘要: By means of autoradiographic and ablation-degeneration techniques, the intrinsic cortical connections posterior parietal cortex in rhesus monkey were traced correlated with a reappraisal cerebral architectonics. Two major rostral-to-caudal connectional sequences exist. One begins dorsal postcentral gyrus (area 2) proceeds, through architectonic divisions superior lobule (areas PE PEc), to region on medial surface lobe PGm). This area has features similar those caudal inferior PG). The second sequence ventral post/central passes rostral PG PFG) reach Both also send projections various other zones located opercular region, intraparietal sulcus, caudalmost portion cingulate sulcus. Areas PGm PG, hand, project each other, temporal gyrus, upper bank Finally, reciprocal connections, directed from rostral, links together many above-mentioned zones. With regard laminar pattern termination, are primarily distributed form "columns" while caudal-to-rostral found mainly over first cell layer.