The term inferior thalamic radiations refers to fiber pathways that connect the thalamus with the temporal lobe, the insula and/or, according to some authors, the ventral portion of the frontal lobe. They pass through the inferior thalamic peduncle, the sublenticular part 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.