Title: Responses of limbic, midbrain and brainstem structures to electrically-induced vocalizations
Abstract: This chapter describes the limbic, midbrain and brainstem regions that participate in the production of vocalizations elicited by midbrain reticular stimulation in the rat brain. Fluorodeoxyglucose autoradiography was used to map the functional activity of all brain regions simultaneously during the elicited vocalizations. This approach permitted us to propose a new model of functional pathways for innately programmed vocalization in the rat brain. The structures involved in species-typical vocalizations were grouped into five levels of hierarchical organization along the neuraxis: limbic; hypothalamic; midbrain; pontine; and medullar levels. These five hierarchical levels interact using two parallel sets of anatomical pathways: (1) a direct pathway, which corresponds to the well-known limbic-midbrain-medulla pathway for innate vocalization in mammals; and (2) a more elaborate, indirect pathway, which involves three specific regions at each of the five hierarchical levels that form a network comprising a total of 15 brain regions. This model is consistent with the results published on the neural control of vocalizations in mammals, while at the same time it significantly extends the scope of the general model of neural control of innate vocalizations in mammals.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 3
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