Non-invasive brain stimulation in Parkinson's disease: Exploiting crossroads of cognition and mood

Lars Dinkelbach, Michela Brambilla, Rosa Manenti, Anna Katharine Brem

Research output: Contribution to journalReview articlepeer-review

Abstract

Cognitive impairments and depression are common non-motor manifestations in Parkinson's disease (PD). Recent evidence suggests that both partially arise via the same frontostriatal network, opening the opportunity for concomitant treatment with non-invasive brain stimulation (NIBS) techniques such as repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS). In this systematic review, we evaluate the effects of NIBS on cognition and/or mood in 19 placebo-controlled studies involving 561 PD patients. Outcomes depended on the area stimulated and the technique used. rTMS over the dorsolateral-prefrontal cortex (DLPFC) resulted in significant reductions in scores of depressive symptoms with moderate to large effect sizes along with increased performance in several tests of cognitive functions. tDCS over the DLPFC improved performance in several cognitive measures, including executive functions with large effect sizes. Additional effects of tDCS on mood were not detectable; however, only non-depressed patients were assessed. Further confirmatory research is needed to clarify the contribution that NIBS could make in the care of PD patients.

Original languageEnglish
Pages (from-to)407-418
Number of pages12
JournalNeuroscience and Biobehavioral Reviews
Volume75
DOIs
Publication statusPublished - Apr 1 2017

Keywords

  • Cognition
  • Dementia
  • Depression
  • Non-invasive brain stimulation (NIBS)
  • Parkinson's disease (PD)
  • Repetitive transcranial magnetic stimulation (rTMS)
  • Transcranial direct current stimulation (tDCS)

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

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