Fig. 1From: Bilateral upper extremity motor priming (BUMP) plus task-specific training for severe, chronic upper limb hemiparesis: study protocol for a randomized clinical trial“Rocker” for bilateral priming. Legend: The Exsurgo priming device (Exsurgo Bilateral Primer, Auckland, New Zealand) used for bilateral priming in this protocol. Permission to use this image was granted by Exsurgo Rehabilitation Ltd. (see Additional file 3)Back to article page