Learned odor discrimination and generalization are reflected in patterns of ensemble activity in anterior piriform cortex, where learned discrimination between two odors reduces the correlation between their induced patterns.
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Weiss, T., Sobel, N. What's primary about primary olfactory cortex?. Nat Neurosci 15, 10–12 (2012). https://doi.org/10.1038/nn.3009
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DOI: https://doi.org/10.1038/nn.3009
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