title: Taste area in granular and dysgranular insular cortices in the rat identified by stimulation of the entire oral cavity.
abstract: While applying natural stimulation to the entire oral cavity, we recorded responses from 489 neurons (400 mechanoreceptive, 84 taste and 5 cold neurons) in the insular cortex of urethane-anesthetized rats. Intermingled with the mechanoreceptive neurons was a major group of taste neurons located in the granular or dysgranular insular area at levels of 2.55-1.20 mm anterior to the bed nucleus of the anterior commissure as stereotaxically located. Most of the taste neurons were also sensitive to mechanical stimulation of the oral and/or perioral tissue.
authors.affiliation: Department of Physiology, Kumamoto University Medical School, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ogawa
authors.forename: S
authors.initials: S
authors.lastname: Ito
authors.forename: N
authors.initials: N
authors.lastname: Murayama
authors.forename: K
authors.initials: K
authors.lastname: Hasegawa
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000166:cytology / Q000502:physiology*; D004558:Electric Stimulation; D004562:Electrocardiography; D004566:Electrodes; D005260:Female; D008465:Mechanoreceptors / Q000502:physiology; D009061:Mouth Mucosa / Q000166:cytology / Q000187:drug effects / Q000294:innervation*; D009474:Neurons / Q000502:physiology; D051381:Rats; D011919:Rats, Inbred Strains; D013238:Stereotaxic Techniques; D013649:Taste / Q000502:physiology*