Visual Exploration While Walking With and Without Visual Cues in Parkinson's Disease: Freezer Versus Non-Freezer.

"The author declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article."

"Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was funded by a Parkinson’s Foundation postdoctoral fellowship for basic scientists (PI: Samuel Stuart) (PF-FBS-1898), a Parkinson’s Foundation clinical research award (PI: Samuel Stuart) (PF-CRA-2073), and a National Institutes of Health (NIH) career development award (PI: Martina Mancini) (5R00HD078492-04). Lisa Graham is supported through a collaborative PhD studentship between Northumbria University and Head Diagnostics (PIs: Dr Morris & Dr Stuart). Julia Das is supported through a collaborative PhD studentship between Northumbria University and Senaptec Inc. (PI: Stuart)."