During these activities, the hand can explore, recognize and discriminate the characteristics of objects also without visual input. During the execution of these guided somatosensory discrimination exercises, the spatial features of perceived objects are extracted and subsequently integrated by higher cortical functions in a mental representation of the object’s shape. This may be especially relevant to SIS rehabilitation, given the fact that pa- tients with this condition often exhibit alterations in muscle activation with suppressed rotator cuff coactivation, humeral mover alterations during arm elevation, and increased middle deltoid and latissimus dorsi activity