The term posterior thalamic radiations refers to fiber pathways that connect the caudal parts of the thalamus with the occipital lobe and the parietal lobe through the posterior thalamic peduncle, the posterior limb of the internal capsule and other parts of the cerebral white matter ( Carpenter-1983 ). They are not readily distinguished in myelin-stained histological cross-sections. For a detailed discussion of semantic differences in the use of terms relating to the thalamic peduncles and the thalamocortical radiations see Anthoney-1994.