Broca named the limbic lobe in 1878, identifying it with the cingulate and parahippocampal gyri, and associating it with the sense of smell - Treviranus having earlier noted that, between species, the size of the parahippocampal gyrus varies with the size of the olfactory nerve.[2] In 1937, Papez theorized that a neural circuit (the Papez circuit) including the hippocampal formation and the cingulate gyrus constitutes the neural substrate of emotional behavior,[3] and Klüver and Bucy reported that, in monkeys, resection involving the hippocampal formation and the amygdaloid complex has a profound effect on emotional responses.[4][5] As a consequence of these publications, the idea that the entire limbic lobe is dedicated to olfaction receded, and a direct connection between emotion and the limbic lobe was established.[6]
^Klüver, H; Bucy, PC (1937). ""Psychic blindness" and other symptoms following bilateral temporal lobectomy in Rhesus monkeys". American Journal of Physiology. 119: 352–53.
^Klüver, H; Bucy, PC (1939). "Preliminary analysis of functions of the temporal lobes in monkeys". Archives of Neurology and Psychiatry. 42 (6): 979–1000. doi:10.1001/archneurpsyc.1939.02270240017001.
^Nieuwenhuys, R; Voogd, J; van Huijzen, C (2008). "The greater limbic system". The human central nervous system (fourth ed.). Berlin/Heidelberg/New York: Springer-Verlag. p. 917. ISBN978-3-540-13441-1.