Impairments of Gestalt perception in the intact hemifield of hemianopic patients are reflected in gamma-band EEG activity.

@article{Schadow2009ImpairmentsOG,
  title={Impairments of Gestalt perception in the intact hemifield of hemianopic patients are reflected in gamma-band EEG activity.},
  author={Jeanette Schadow and Nicole Dettler and Galina V. Paramei and Daniel Lenz and Ingo Fr{\"u}nd and Bernhard A. Sabel and Christoph Siegfried Herrmann},
  journal={Neuropsychologia},
  year={2009},
  volume={47 2},
  pages={556-68}
}
Gamma-band responses (GBRs) are associated with Gestalt perception processes. In the present EEG study, we investigated the effects of perceptual grouping on the visual GBR in the perimetrically intact visual field of patients with homonymous hemianopia and compared them to healthy participants. All observers were presented either random arrays of Gabor elements or arrays with an embedded circular arrangement. For the hemianopic patients, the circle was presented in their intact hemifield only… CONTINUE READING

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