An oblique effect for local motion: psychophysics and natural movie statistics.

  title={An oblique effect for local motion: psychophysics and natural movie statistics.},
  author={Steven C. Dakin and Isabelle Mareschal and Peter J. Bex},
  journal={Journal of vision},
  volume={5 10},
Human perception of visual motion is thought to involve two stages--estimation of local motion (i.e., of small features) and global motion (i.e., of larger objects)--identified with cortical areas V1 and MT, respectively. We asked if poor discrimination of oblique compared to cardinal directions (the oblique effect for motion; OEM) reflects a deficit in local or in global motion processing. We used an equivalent noise (EN) paradigm--where one measures direction discrimination thresholds in the… CONTINUE READING

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