Laryngeal afferent stimulation enhances fos immunoreactivity in periaqueductal gray in the cat This article is a US Government work and, as such, is in the public domain in the United States of America.
Abstract:The main functions of the larynx are protection of the airways, respiration, and vocalization. Previous studies have suggested a link between the mechanisms controlling vocalization and afferent feedback from the larynx. We inquired whether stimulation of the laryngeal afferents that run in the internal branch of the superior laryngeal nerve (ISLN) activates neurons of the periaqueductal gray (PAG), a midbrain region implicated in vocalization. We counted the number of neurons expressing Fos, the protein produ… Show more
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