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The olfactory connections of the lateral hypothalamus in the rat, mouse and hamster
Author(s) -
Scott John W.,
Leonard Christiana M.
Publication year - 1971
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901410305
Subject(s) - olfactory bulb , biology , medial forebrain bundle , olfactory tubercle , olfactory system , neuroscience , hypothalamus , anatomy , lateral hypothalamus , anterior olfactory nucleus , central nervous system , striatum , dopamine
The afferent olfactory connections of the lateral hypothalamus of the rat were studied by producing lesions of olfactory cortex and staining for degeneration by the method of Fink and Heimer ('67) and by electropysiological recording of responses to olfactory bulb shock and odor stimulation. Direct connections from olfactory areas were found only in a ventrolateral part of the medial forebrain bundle. In the posterior hypothalamus the olfactory fibers turned dorsally and terminated in a more medial area. The region from which strong olfactory responses could be recorded coincided with the path of degenerating axons. Lesions of the olfactory tuercle of hamsters and mice produced a similar restricted pattern of degeneration.