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

Dinkelbach, Lars; Brambilla, Michela; Manenti, Rosa; Brem, Anna-Katherine

doi:10.1016/j.neubiorev.2017.01.021

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

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Brem, Anna-Katherine
Max Planck Institute of Psychiatry, Max Planck Society;

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Dinkelbach, L., Brambilla, M., Manenti, R., & Brem, A.-K. (2017). Non-invasive brain stimulation in Parkinson's disease: Exploiting crossroads of cognition and mood. NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS, 75, 407-418. doi:10.1016/j.neubiorev.2017.01.021.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-8656-A

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. (C) 2017 Elsevier Ltd. All rights reserved.