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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Dickinson, Michael H. Weir, Peter T. |
| Description | Author Affiliation: Weir PT ( Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125.); Dickinson MH ( Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125 flyman@caltech.edu.); |
| Abstract | Although anatomy is often the first step in assigning functions to neural structures, it is not always clear whether architecturally distinct regions of the brain correspond to operational units. Whereas neuroarchitecture remains relatively static, functional connectivity may change almost instantaneously according to behavioral context. We imaged panneuronal responses to visual stimuli in a highly conserved central brain region in the fruit fly, Drosophila, during flight. In one substructure, the fan-shaped body, automated analysis revealed three layers that were unresponsive in quiescent flies but became responsive to visual stimuli when the animal was flying. The responses of these regions to a broad suite of visual stimuli suggest that they are involved in the regulation of flight heading. To identify the cell types that underlie these responses, we imaged activity in sets of genetically defined neurons with arborizations in the targeted layers. The responses of this collection during flight also segregated into three sets, confirming the existence of three layers, and they collectively accounted for the panneuronal activity. Our results provide an atlas of flight-gated visual responses in a central brain circuit. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 40 |
| Volume Number | 112 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2015-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Brain Physiology Drosophila Melanogaster Flight, Animal Visual Perception Animals Animals, Genetically Modified Cytology Metabolism Genetics Green Fluorescent Proteins Microscopy, Fluorescence, Multiphoton Neurons Photic Stimulation Videotape Recording Research Support, N.I.H., Extramural Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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