Spatial frequency discrimination in schizophrenia.

  title={Spatial frequency discrimination in schizophrenia.},
  author={Brian F. O'Donnell and Geoffrey F. Potts and Paul Nestor and Kiriaki C Stylianopoulos and Martha Shenton and R. W. McCarley},
  journal={Journal of abnormal psychology},
  volume={111 4},
Pathways within the visual system can be distinguished on the basis of selectivity for low or high spatial frequencies. Spatial frequency discrimination was evaluated in 17 medicated male patients with schizophrenia and 19 male control subjects. Subjects were required to discriminate whether pairs of high contrast, sinusoidally modulated gratings were the same or different in spatial frequency. Accuracy performance was compared at high, medium, and low spatial frequencies on tasks matched for… CONTINUE READING

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