Heart beat fluctuation during fictive locomotion in decerebrate cats: locomotor-cardiac coupling of central origin

• Published in: Neuroscience letters Vol. 150; no. 2; pp. 200 - 202
• Main Authors: Kawahara, Koichi, Yoshioka, Toshihiro, Yamauchi, Yoshiko, Niizeki, Kyuichi
• Format: Journal Article
• Language: English
• Published: Shannon Elsevier Ireland Ltd 19.02.1993; Elsevier
• Subjects: Animals; Biological and medical sciences; Carbon Dioxide - metabolism; Cats; Central Nervous System - physiology; Coherence analysis; Decerebrate cat; Decerebrate State - physiopathology; Electric Stimulation; Electrocardiography; Electromyography; Fictive locomotion; Fundamental and applied biological sciences. Psychology; Heart - innervation; Heart - physiology; Heart Rate - physiology; Hindlimb - physiology; Locomotion - physiology; Mesencephalic locomotor region; Mesencephalon - physiology; Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration; Phrenic Nerve - physiology; Vagotomy; Vertebrates: nervous system and sense organs; Decerebrate cat; Fictive locomotion; Coherence analysis; Mesencephalic locomotor region; Fissipedia; Peripheral nerve; Carnivora; Electrical stimulus; Central nervous system; Discharge pattern; Electrophysiology; Midbrain; Central pattern generator; Heart rate; Locomotion; Vertebrata; Mammalia; Cat; Coherence; Decerebration; Electrocardiography; Coupling; Respiration
• ISSN: 0304-3940; 1872-7972
• DOI: 10.1016/0304-3940(93)90535-S

Fictive locomotion was evoked by stimulation of the mesencephalic locomotor region (MLR) in immobilized, vagotomized and decerebrate cats. The coherence between heart beat fluctuation and efferent discharges of the hindlimb nerve was used to evaluate the strength of the coupling between the cardiac and locomotor rhythms during MLR-elicited fictive locomotion. This study demonstrated that there was a locomotor-cardiac coupling of central origin.