Sparse coding in striate and extrastriate visual cortex.

@article{Willmore2011SparseCI,
  title={Sparse coding in striate and extrastriate visual cortex.},
  author={Ben D. B. Willmore and James A. Mazer and Jack L. Gallant},
  journal={Journal of neurophysiology},
  year={2011},
  volume={105 6},
  pages={
          2907-19
        }
}
Theoretical studies of mammalian cortex argue that efficient neural codes should be sparse. However, theoretical and experimental studies have used different definitions of the term "sparse" leading to three assumptions about the nature of sparse codes. First, codes that have high lifetime sparseness require few action potentials. Second, lifetime-sparse codes are also population-sparse. Third, neural codes are optimized to maximize lifetime sparseness. Here, we examine these assumptions in… CONTINUE READING

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