Neuronal activity during spontaneous walking--I. Starting and stopping.
1. The spontaneous release of walking in the locust is preceded by a preparatory phase consisting of "intentional" movements. This phase is absent when walking is evoked by sensory stimuli. 2. Some brain and suboesophageal (SOG) descending interneurons (DINs) become active before the preparatory phase. 3. During and after the preparatory phase new DINs are recruited predominantly from the SOG. 4. A large variety of activity patterns was recorded during spontaneous starts. These activity patterns are absent when walking is evoked by sensory stimulation. 5. Similarly complex and long lasting patterns were recorded during spontaneous stopping. 6. The data lead to refinement of the consensus model.
Kien
J
J
Fachbereich für Biologie, Universität Regensburg, FRG.
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D001921:Brain / Q000166:cytology; D004525:Efferent Pathways / Q000166:cytology; D004558:Electric Stimulation; D004947:Esophagus / Q000294:innervation; D006110:Grasshoppers; D007395:Interneurons / Q000502:physiology; D008124:Locomotion / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D010812:Physical Stimulation