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Carandini M, Heeger DJ, Movshon JA.Carandini M, et al. Among authors: heeger dj.J Neurosci. 1997 Nov 1;17(21):8621-44. doi: 10.1523/JNEUROSCI.17-21-08621.1997.J Neurosci. 1997.PMID: 9334433Free PMC article.