fMRI orientation decoding in V1 does not require global maps or globally coherent orientation stimuli

@inproceedings{Alink2013fMRIOD,
  title={fMRI orientation decoding in V1 does not require global maps or globally coherent orientation stimuli},
  author={Arjen Alink and Alexandra Krugliak and Alexander Walther and Nikolaus Kriegeskorte},
  booktitle={Front. Psychol.},
  year={2013}
}
The orientation of a large grating can be decoded from V1 functional magnetic resonance imaging (fMRI) data, even at low resolution (3-mm isotropic voxels). This finding has suggested that columnar-level neuronal information might be accessible to fMRI at 3T. However, orientation decodability might alternatively arise from global orientation-preference maps. Such global maps across V1 could result from bottom-up processing, if the preferences of V1 neurons were biased toward particular… CONTINUE READING
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fMRI orientation decoding in V1 does not require global maps or globally coherent orien

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Are CoarseScale Orientation Maps Really Necessary for Orientation Decoding ?

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