{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T13:47:30Z","timestamp":1779371250248,"version":"3.53.1"},"reference-count":33,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2004,10,11]],"date-time":"2004-10-11T00:00:00Z","timestamp":1097452800000},"content-version":"vor","delay-in-days":3693,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Neurobiol."],"published-print":{"date-parts":[[1994,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>In order to elucidate the neural basis for lung ventilation in the frog, we have investigated the efferent neural activity to oropharyngeal muscles in the decerebrate, paralyzed, unanesthetized bullfrog, <jats:italic>Rana catesbeiana<\/jats:italic>. Efferent motor output was recorded from the mandibular branch of the trigeminal (Vmd), the laryngeal branch of the vagus (X<jats:italic>l<\/jats:italic>), and the main and sternohyoid branches of the hypoglossal nerve (Hm and Hsh, respectively). Two types of rhythmic bursting outputs were observed: (1) a high\u2010frequency, low\u2010amplitude, reciprocal oscillation between Vmd, a buccal levator nerve, and Hsh, a buccal depressor nerve; and (2) a low\u2010frequency, high amplitude, synchronous bursting of Vmd, Hm, Hsh, and Xl. The first type is inferred to represent fictive oropharyngeal ventilation. The second type of burst was divided into four intervals: (a)augmenting acitivity of Hsh; (b) activation of X<jats:italic>l<\/jats:italic> with continued activation of Hsh; (c) activation of Vmd and Hm (a buccal levator nerve), continued activation of X<jats:italic>l<\/jats:italic>, and termination of Hsh activity; and (d) waning activity in Vmd and Hm associated with a prominent second wave in X<jats:italic>l<\/jats:italic>. This coordinated activity is inferred to represent fictive pulmonary ventilation because the neurograms in these four intervals correspond closely EMGs and neurograms recorded in the intact frog during the four phases of pulmonary ventilation, namely, buccal depression, pulmonary expiration, pulmonary inspiration, and glottal closure. Hypercapnia, vagotomy, and cutaneus pinching enhanced the high\u2010amplitude, low\u2010frequency rhythm, but not the low\u2010amplitude, high\u2010frequency oscillation. Lung inflation generally inhibited the former and not the latter, but in some cases lung inflation stimulated pulmonary ventilation. We conclude that oropharyngeal and pulmonary ventilation of the frog are produced by one or, possibly, two intrinsically active generators. 1994 John Wiley &amp; Sons, Inc.<\/jats:p>","DOI":"10.1002\/neu.480250904","type":"journal-article","created":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T03:32:12Z","timestamp":1104550332000},"page":"1067-1079","source":"Crossref","is-referenced-by-count":70,"title":["Neural organization of the ventilatory activity in the frog, <i>Rana catesbeiana<\/i>. I"],"prefix":"10.1002","volume":"25","author":[{"given":"Naoki","family":"Kogo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven F.","family":"Perry","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John E.","family":"Remmers","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2004,10,11]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1242\/jeb.68.1.99"},{"key":"e_1_2_1_3_1","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1242\/jeb.134.1.79","article-title":"Acid\u2010base regulation and blood gases in the anuran amphibian, Bufo marinus, during environmental hypercapnia","volume":"134","author":"Boutilier R. G.","year":"1988","journal-title":"J. Exp. 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