Retinal neurons and vessels are not fractal but space-filling.

@article{Panico1995RetinalNA,
  title={Retinal neurons and vessels are not fractal but space-filling.},
  author={J Panico and Peter Sterling},
  journal={The Journal of comparative neurology},
  year={1995},
  volume={361 3},
  pages={479-90}
}
Many branched patterns in nature are hypothesized to be fractal, i.e., statistically self-similar across a range of scales. We tested this hypothesis on the two-dimensional arbors of retinal neurons and blood vessels. First, we measured fractalness on synthetic fractal and nonfractal patterns. The synthetic fractal patterns exhibited self-similarity over a decade of scale, but the nonfractal "controls" showed hardly any self-similarity. Neuronal and vascular patterns showed no greater self… CONTINUE READING

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