These treatments are based on the ability of the patients to perform actions with the affected hand or arm and therefore, require residual motor ability. Many patients however, are prevented from training based on the above treatments due to having no residual hand motor functions. In case of moderate to severe motor deficits, MI represents an intriguing new “backdoor” approach to access the motor system and rehabilitation at all stages of stroke recovery (Sharma et al., 2006, 2009a,b; Page et al., 2007). MI can be defined as a dynamic state during which the representation of a specific motor action is internally rehearsed without any overt motor output, and that is governed by the principles of central and peripheral motor control (Decety and Jeannerod, 1995; Berthoz, 1996; Jeannerod and Frak, 1999; Lotze and Halsband, 2006). This is likely the reason why mental practice using MI training results in motor performance improvements (for a review in athletes, see Feltz and Landers, 1983; Dickstein and Deutsch, 2007). In addition, MI training can independently improve motor performance and produce similar cortical plastic changes (Lotze and Halsband, 2006), providing a useful alternative when physical training is not possible.