Case 5.

Diagrammatic representation of the lateral surface of the cerebral hemisphere to show the location of the isotope injection in the lower part of the inferior parietal lobule involving the lower part of area PG and adjacent superior temporal sulcus shown as solid black and the distribution of terminal label in the frontal lobe shown as dots. The inferior ramus of the arcuate sulcus (ASi) has been opened up to show label in its banks. Coronal sections, at the levels indicated on the diagram of the lateral surface of the hemisphere, show the labeled pathways in the white matter.