Motion integration deficits are independent of magnocellular impairment in Parkinson’s disease

@article{CasteloBranco2009MotionID,
  title={Motion integration deficits are independent of magnocellular impairment in Parkinson’s disease},
  author={Miguel Castelo-Branco and Mafalda Mendes and F{\'a}tima Silva and Jo{\~a}o Massano and Antonio Freire},
  journal={Neuropsychologia},
  year={2009},
  volume={47},
  pages={314-320}
}
Motion processing involves multiple hierarchical steps, from the magnocellular pathway, sensitive to high temporal frequency modulations, to subsequent motion integration within the visual cortical dorsal stream. We have tested whether motion integration deficits in mild Parkinson disease (PD) can be explained by visual deficits in earlier processing nodes. Contrast sensitivity deficits in the magnocellular pathway, were compared with speed discrimination of local dots moving in random… CONTINUE READING

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