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  • Alex A. MacDonald, O. Monchi, Ken N. Seergobin, H. Ganjavi, Ruzbeh Tamjeedi, Penny A. MacDonald
  • Medicine, Psychology
  • Movement disorders : official journal of the…
  • 2013 (First Publication: 1 February 2013)
  • We investigated the hypothesis that variation in endogenous dopamine (DA) across brain regions explains dissimilar effects of dopaminergic therapy on aspects of cognition in early Parkinson's diseaseExpand
  • Nole M. Hiebert, Andrew Vo, Adam Hampshire, Adrian M. Owen, Ken N. Seergobin, Penny A. MacDonald
  • Psychology, Medicine, Computer Science
  • NeuroImage
  • 2014 (First Publication: 1 November 2014)
  • Cognitive deficits are recognized in Parkinson's disease. Understanding cognitive functions mediated by the striatum can clarify some of these impairments and inform treatment strategies. The dorsalExpand
  • Andrew Vo, Nole M. Hiebert, Ken N. Seergobin, Stephanie Solcz, Allison Partridge, Penny A. MacDonald
  • Medicine, Psychology
  • Front. Hum. Neurosci.
  • 2014 (First Publication: 2 October 2014)
  • Cognitive dysfunction is a feature of Parkinson's Disease (PD). Some cognitive functions are impaired by dopaminergic medications prescribed to address the movement symptoms that typify PD. LearningExpand
  • Brian D. Robertson, Nole M. Hiebert, Ken N. Seergobin, Adrian M. Owen, Penny A. MacDonald
  • Medicine, Psychology, Computer Science
  • NeuroImage
  • 2015 (First Publication: 1 July 2015)
  • OBJECTIVE Whether the dorsal striatum (DS) mediates cognitive control or cognitive effort per se in decision-making is unclear given that these effects are highly correlated. As the cognitive controlExpand