In V1, neurons preferring similar orientations are grouped in columns too small to be resolved by conventional fMRI. Two studies circumvent this limitation by using algorithms to recognize patterns of activation across a large area. This new trick allows the authors to distinguish responses to different orientations in human V1 and to study its contribution to conscious perception.
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Boynton, G. Imaging orientation selectivity: decoding conscious perception in V1. Nat Neurosci 8, 541–542 (2005). https://doi.org/10.1038/nn0505-541
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DOI: https://doi.org/10.1038/nn0505-541
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