Factors affecting visual sensitivity in a hemianopic subject.

  title={Factors affecting visual sensitivity in a hemianopic subject.},
  author={Lawrence Weiskrantz and Alistair Harlow and John L. Barbur},
  journal={Brain : a journal of neurology},
  volume={114 ( Pt 5)},
A well-studied subject with visual cortex damage (G.Y.) was tested in his hemianopic field with temporally modulated sinusoidal and square-wave gratings. The purpose was to use an extended range of parameters to obtain a detailed spatiotemporal specification of his residual vision and to try to resolve the discrepancy between negative findings of Hess and Pointer (1989) and previous positive claims. Both the spatial and temporal parameters could be Gaussian-weighted. Detection as a function of… CONTINUE READING

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