1. Novel Challenges to Gait in Parkinson's Disease: The Effect of Concurrent Music in Single- and Dual-Task Contexts 
Lesley A. Brown, PhD, Natalie de Bruin, MSc, Jon B. Doan, PhD, Oksana Suchowersky, MD, Bin Hu, PhD, MD 
Archives of Physical Medicine and Rehabilitation 
Volume 90, Issue 9, Pages (September 2009)
DOI: /j.apmr
Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Means and SEs of means for (A) the number of verbalizations and (B) the percentage of errors made during a secondary cognitive task (serial 3's) during no music (NM) and music (M) trials.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Means and SEs of means for (A) gait velocity, (B) stride length, and (C) percentage of gait cycle spent in DLS during no music (NM) and music (M) trials in a single task (SINGLE) and dual-task (DUAL) condition. *Significant effect of task; †significant effect of group; ‡significant music × group interaction; §significant task × music × group interaction.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions