Commentary on controversies in sleep medicine: Montplaisir et al.: Periodic leg movements are not more prevalent in insomnia or hypersomnia but are specifically associated with sleep disorders involving a dopaminergic mechanism Commentary on controversies in sleep medicine: Montplaisir et al.: Periodic leg movements are not more prevalent in insomnia or hypersomnia but are specifically associated with sleep disorders involving a dopaminergic mechanism Download Article reviewed: Improvement of sleep architecture in Parkinson’s Disease with subthalamic nucleus stimulation Controversies in sleep medicine – Volume 2 Issue 4