منابع مشابه
Fly cryptochrome and the visual system.
Cryptochromes are flavoproteins, structurally and evolutionarily related to photolyases, that are involved in the development, magnetoreception, and temporal organization of a variety of organisms. Drosophila CRYPTOCHROME (dCRY) is involved in light synchronization of the master circadian clock, and its C terminus plays an important role in modulating light sensitivity and activity of the prote...
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Understanding the molecular mechanisms that regulate formation of precise patterns of neuronal connections within the central nervous system remains a challenging problem in neurobiology. Genetic studies in worms and flies and molecular studies in vertebrate systems have led to an increasingly sophisticated understanding of how growth cones navigate toward their targets and form topographic map...
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We dynamically analyze our experimental results on the motion sensitive spiking H1 neuron of the fly's visual system. We find that the fly uses an alphabet composed of a few letters to encode the information contained in the stimulus. The {\em alphabet dynamics} is multifractal both with and without stimulus, though the multifractality increases with the stimulus entropy. This is in sharp contr...
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We describe an adaptive version of the Hassenstein–Reichardt detector, which models direction-selective computation in the fly. The Hassenstein– Reichardt detector has a fixed time constant. However, several researchers have shown that the time constant of the fly’s motion system adapts to the temporal frequency or speed of the input. The time constant of our adaptive detector also adapts to th...
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Animals that have simple eyes are thought to only detect crude visual detail such as light level. However, predatory insect larvae using a small number of visual inputs seem to distinguish complex image targets. Here we show that Drosophila melanogaster larvae, which have 12 photoreceptor cells per hemisphere, are attracted to distinct motions of other, tethered larvae and that this recognition...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2013
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1212317110