giant fiber system
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eNeuro ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. ENEURO.0423-18.2019
Author(s):  
Hrvoje Augustin ◽  
Asaph Zylbertal ◽  
Linda Partridge


2018 ◽  
Author(s):  
Hrvoje Augustin ◽  
Asaph Zylbertal ◽  
Linda Partridge

ABSTRACTThe Giant Fiber System (GFS) is a multi-component neuronal pathway mediating rapid escape response in the adult fruit-fly Drosophila melanogaster, usually in the face of a threatening visual stimulus. Two branches of the circuit promote the response by stimulating an escape jump followed by flight initiation. Our recent work demonstrated an age-associated decline in the speed of signal propagation through the circuit, measured as the stimulus-to-muscle depolarization response latency. The decline is likely due to the diminishing number of interneuronal gap junctions in the GFS of ageing flies. In this work, we presented a realistic conductance-based, computational model of the GFS that recapitulates our experimental results and identifies some of the critical anatomical and physiological components governing the circuit’s response latency. According to our model, anatomical properties of the GFS neurons have a stronger impact on the transmission than neuronal membrane conductance densities. The model provides testable predictions for the effect of experimental interventions on the circuit’s performance in young and ageing flies.



Genetics ◽  
2017 ◽  
Vol 205 (3) ◽  
pp. 1229-1245 ◽  
Author(s):  
Melissa Borgen ◽  
Kimberly Rowland ◽  
Jana Boerner ◽  
Brandon Lloyd ◽  
Aruna Khan ◽  
...  


Author(s):  
Monica Mejia ◽  
Mari D. Heghinian ◽  
Alexandra Busch ◽  
Frank Marí ◽  
Tanja A. Godenschwege


2010 ◽  
Vol 2010 (7) ◽  
pp. pdb.prot5453-pdb.prot5453 ◽  
Author(s):  
M. J. Allen ◽  
T. A. Godenschwege


2008 ◽  
Vol 18 (24) ◽  
pp. 1955-1960 ◽  
Author(s):  
Pauline Phelan ◽  
L. Ann Goulding ◽  
Jennifer L.Y. Tam ◽  
Marcus J. Allen ◽  
Rebecca J. Dawber ◽  
...  


2006 ◽  
Vol 210 (3) ◽  
pp. 318-333 ◽  
Author(s):  
Philip Grant ◽  
Yali Zheng ◽  
Harish C. Pant


2002 ◽  
Vol 22 (8) ◽  
pp. 3117-3129 ◽  
Author(s):  
Tanja A. Godenschwege ◽  
Julie H. Simpson ◽  
Xiaoliang Shan ◽  
Greg J. Bashaw ◽  
Corey S. Goodman ◽  
...  


2000 ◽  
Vol 16 (6) ◽  
pp. 754-765 ◽  
Author(s):  
Marcus J. Allen ◽  
Xiaoliang Shan ◽  
R.K. Murphey


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