Transcranial direct current stimulation in Parkinson's disease dementia: A randomised double-blind crossover trial

- Attentional difficulties are common in Parkinson's disease dementia (PDD).
- Current pharmacological treatments have limited efficacy and have associated side effects.
- There is a paucity of well-controlled tDCS clinical trials in PDD.
- tDCS is tolerable and feasible in a PDD population.
- A single session of tDCS does not, however, benefit attentional function in PDD.