Do people with Parkinson’s disease utilize probabilistic advance information in a grip-lift task ?


  • People with Parkinson’s disease (PD) barely utilize probabilistic advance information about object weight in grip-lift tasks; however, when object weight is provided unambiguously, individuals initiate their actions using appropriate rates of force.

Why this matters ?

  • These findings are the first to show that people with PD do not utilize relevant probabilistic information to grasp and lift an object; this may have implications for physical therapy in PD, where cues guiding movements should be clear, simple and direct.