Abstract
We report the flight motor output pattern in Drosophila melanogaster and the neural network responsible for it, and describe the bursting motor output pattern in a mutant. There are 26 singly-innervated muscle fibers. There are two basic firing patterns: phase progression, shown by units that receive a common input but have no cross-connections, and phase stability, in which synergic units, receiving a common input and inhibiting each other, fire in a repeating sequence.
Flies carrying the mutation stripe cannot fly. Their motor output is reduced to a short duration, high-frequency burst, but the patterning within bursts shows many of the characteristics of the wild type. The mutation is restricted in its effect, as the nervous system has normal morphology by light microscopy and other behaviors of the mutant are normal.
Keywords: motor output pattern, neural network, motor neuron, stripe
Full text
PDF




Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Hotta Y., Benzer S. Genetic dissection of the Drosophila nervous system by means of mosaics. Proc Natl Acad Sci U S A. 1970 Nov;67(3):1156–1163. doi: 10.1073/pnas.67.3.1156. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ikeda K., Kaplan W. D. Patterned neural activity of a mutant Drosophila melanogaster. Proc Natl Acad Sci U S A. 1970 Jul;66(3):765–772. doi: 10.1073/pnas.66.3.765. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MCCANN F. V., BOETTIGER E. G. Studies on the flight mechanism of insects. I. The electrophysiology of fibrillar flight muscle. J Gen Physiol. 1961 Sep;45:125–142. doi: 10.1085/jgp.45.1.125. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mulloney B. Organization of flight motoneurons of diptera. J Neurophysiol. 1970 Jan;33(1):86–95. doi: 10.1152/jn.1970.33.1.86. [DOI] [PubMed] [Google Scholar]
- Pak W. L., Grossfield J., Arnold K. S. Mutants of the visual pathway of Drosophila melanogaster. Nature. 1970 Aug 1;227(5257):518–520. doi: 10.1038/227518b0. [DOI] [PubMed] [Google Scholar]
- WILSON D. M. RELATIVE REFRACTORINESS AND PATTERNED DISCHARGE OF LOCUST FLIGHT MOTOR NEURONS. J Exp Biol. 1964 Mar;41:191–205. doi: 10.1242/jeb.41.1.191. [DOI] [PubMed] [Google Scholar]
- Wyman R. J. Lateral inhibition in a motor output system. I. Reciprocal inhibition in Dipteran flight motor system. J Neurophysiol. 1969 May;32(3):297–306. doi: 10.1152/jn.1969.32.3.297. [DOI] [PubMed] [Google Scholar]
- Wyman R. J. Lateral inhibition in a motor output system. II. Diverse forms of patterning. J Neurophysiol. 1969 May;32(3):307–314. doi: 10.1152/jn.1969.32.3.307. [DOI] [PubMed] [Google Scholar]
- Wyman R. J. Multistable firing patterns among several neurons. J Neurophysiol. 1966 Sep;29(5):807–833. doi: 10.1152/jn.1966.29.5.807. [DOI] [PubMed] [Google Scholar]
- Wyman R. Probabilistic characterization of simultaneous nerve impulse sequences controlling dipteran flight. Biophys J. 1965 Jul;5(4):447–471. doi: 10.1016/S0006-3495(65)86729-7. [DOI] [PMC free article] [PubMed] [Google Scholar]

