55 (1967). 30. The following abbreviations are used in the figures and figure legends: A, auditory area of cortex; CM + Pf, centromedian + parafascicular nuclei; GL, lateral geniculate nucleus; GM, medial geniculate nucleus; Hab, habenula; Hip, hippocampus; L, lateral group of nuclei; LP, lateroposterior nucleus; MD, mediodorsal nucleus; PC, posterior commissure; Po, posterior nucleus; Pul, pulvinar nucleus; R, reticular nucleus; S I, somatic area I; S II, somatic area II; SC, superior colliculus; T, temporal area of cortex; TO, optic tract; V, ventral group; V I, visual area I; V II, visual area II; VGL, ventral lateral geniculate; VL, ventrolateral nucleus; VM, ventromedial nucleus; VP, ventroposterior nucleus; ZI, zona incerta.