Objects can be grasped in different ways to ensure a movement plan is aligned with the intended action. The current study assessed grasp posture in joint action object manipulation in children (ages 6-11, n = 68), young adults (n = 21), and older adults (n = 23). Participants performed two actions (pickup and pass; pickup and pass for use) within…

Previous research in our laboratory has examined the distribution of preferred hand (PH) reaches in working space with right-handed participants. In one study, we examined the effects of tool position and task demands on the frequency of PH reaches with right-handers (Mamolo, Roy, Bryden, & Rohr, 2004). We found that PH reaches were at a maximum…

Performance-based measures of hand preference have been developed as an objective method of examining handedness. Previous research using this method by Bryden, Roy, and Mamolo (2003) showed that both skill demands and the position of the object in working space affect preferential hand reaching. Specifically, preferred hand reaches predominated…