Symmetry activates extrastriate visual cortex in human and nonhuman primates.

@article{Sasaki2005SymmetryAE,
  title={Symmetry activates extrastriate visual cortex in human and nonhuman primates.},
  author={Yuka Sasaki and Wim Vanduffel and Tamara A. Knutsen and Christopher W. Tyler and Roger B. H. Tootell},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2005},
  volume={102 8},
  pages={3159-63}
}
Humans often create and appreciate visual symmetry in their environment, and the underlying brain mechanisms have been a topic of increasing interest. Here, symmetric versus random dot stimuli produced robust functional MRI (fMRI) activity in higher-order regions of human visual cortex (especially areas V3A, V4, V7, and LO) but little activity elsewhere in brain. This fMRI response was found both with and without attention controls. Moreover, it was highly correlated with the psychophysical… CONTINUE READING
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