High-frequency and medium-frequency components of different inspiratory nerve discharges and their modification by various inputs

• Published in: Brain research Vol. 417; no. 1; p. 148
• Main Authors: Cohen, M I, See, W R, Christakos, C N, Sica, A L
• Format: Journal Article
• Language: English
• Published: Netherlands 04.08.1987
• Subjects: Animals; Carbon Dioxide - physiology; Cats; Decerebrate State - physiopathology; Hypoglossal Nerve - physiology; Laryngeal Nerves - physiology; Lung - innervation; Motor Neurons - physiology; Neurons, Afferent - physiology; Phrenic Nerve - physiology; Recurrent Laryngeal Nerve - physiology; Respiration; Respiratory Muscles - innervation
• ISSN: 0006-8993
• DOI: 10.1016/0006-8993(87)90190-9

In decerebrate paralyzed cats, spectral analysis was performed on simultaneous recordings of efferent inspiratory nerves (phrenic, recurrent laryngeal, hypoglossal). Spectral peaks were present both in the high-frequency (HFO) range (50-100 Hz) and the medium-frequency (MFO) range (20-50 Hz). Different activities were coherent only in the HFO range, indicating that the HFOs arise in a common inspiratory pattern generator that drives the different motoneuron populations, whereas the MFOs are specific to different systems.