EMOTIONAL BEHAVIOR 



•537 



BOIf 



fic. i. Semidiagrammatic representation "I the principal anatomical relationships between the 

 'paleocortex,' the 'juxtallocortex' and the several 'subcortical structures' considered in recent 

 treatments of the 'limbic system.' The brain-stem portions of the system have been schematically 

 displaced from the hilus of the hemisphere and represented in the Iowa halt of the figure in order 

 to facilitate visualization of the numerous anatomical interconnections involving these structures. 

 .1, anterior nucleus of the thalamus, Am, amygdaloid complex, Ar, arcuate nucleus, B. 01/., ol- 

 factory bulb; C.I, .ulterior commissure, Ch, optic chiasm, Corp. Call., corpus callosum; DM, dorso- 

 medial nucleus of the thalamus, En, entorhinal area; Fx, fornix, H, habenular complex; 

 HP, habenulointerpeduncular tract; IL, intralaminar thalamic nuclei, IP, interpeduncular nucleus; 

 L, lateral thalamic nucleus, MB, mammillary bodies, MT, mammillothalamic tract; Periam, 

 periamyRdaloid cortex, Pit, pituitary; Prepxr, prepyriform cortex, Preuib, presubiculum; S, septal 

 region; Teg, midbrain tegmentum, TO, olfactory tubercle; I*, ventral nucleus of the thalamus. 

 [From Brady (45).] 



(311). This view, which tends to be perpetuated by 

 the broad usage of the term rhinencephalon (216), 

 would presently appear to lie untenable in the light 

 of recent studies (81, 125) which have clearly demon- 



strated 1 more restricted distribution of primary 

 olfactory afferents (i.e. of fibers originating from 

 (he olfactory bulb). On the basis of this evidence, 

 the term rhinencephalon should not be used synony- 



