Left Parietal Cortex

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Gerstmann syndrome (angular gyrus syndrome) - localized to dominant inferior parietal lobe (Rusconi 2018)

Characterized by 4 symptoms:

  • a writing disability (agraphia or dysgraphia)
  • a lack of understanding of the rules for calculation or arithmetic (acalculia or dyscalculia)
  • an inability to distinguish right from left
  • an inability to identify fingers (finger agnosia)


Praxis


Left temporoparietal junction: sensorimotor interface – primary affected region of logopenic PPA (trouble with word retrieval, transforming the idea into a word)


References

Rusconi, E. Gerstmann syndrome: historic and current perspectives. in Handbook of Clinical Neurology vol. 151 395–411 (Elsevier, 2018). https://pubmed.ncbi.nlm.nih.gov/29519471/

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