Altered effective connectivity within the language network in primary progressive aphasia.

@article{Sonty2007AlteredEC,
  title={Altered effective connectivity within the language network in primary progressive aphasia.},
  author={Sreepadma P Sonty and M - Marsel Mesulam and Sandra Weintraub and Nancy T Johnson and Todd B. Parrish and Darren R. Gitelman},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={2007},
  volume={27 6},
  pages={1334-45}
}
Primary progressive aphasia (PPA) is a neurodegenerative dementia syndrome principally characterized by the gradual dissolution of language functions, especially in the early stages of disorder. In a previous functional neuroimaging study, PPA patients were found to activate core language areas similarly to control subjects when performing semantic and phonological processing tasks (Sonty et al., 2003). In the present study, functional magnetic resonance imaging (fMRI) and dynamic causal… CONTINUE READING

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