“…There are some grounds for thinking that bimanual coordination varies with handedness, even though little is known about this relationship because left-handers are usually excluded from the studies. Most bimanual studies which include lefthanders focus on the handedness-driven dynamics of bimanual coordination, where the preferred hand is leading (Amazeen, Amazeen, Treffner, & Turvey, 1997;Fagard & Pezé, 1992;Stucchi & Viviani, 1993;Swinnen, Jardin, & Meulenbroek, 1996;Treffner & Turvey, 1995, 1996Wuyts, Summers, Carson, Byblow, & Semjen, 1996) rather than on bimanual performance as a function of handedness. If mixed-and left-handers have greater interhemispheric integration than righthanders, then performance on a bimanual task should vary with handedness, at least on tasks for which the role of interhemispheric transfer has been demonstrated (Geffen, Jones, & Geffen, 1994;Jeeves, Silver, & Milne, 1988;Pelletier et al, 1993;Preilowski, 1972Preilowski, , 1977Preilowski, , 1990Zaidel & Sperry, 1977).…”