Hand preference across the lifespan: effects of end-goal, task nature, and object location

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dc.contributor.authorGonzalez, Claudia L. R.
dc.contributor.authorFlindall, Jason W.
dc.contributor.authorStone, Kayla D.
dc.date.accessioned2016-11-04T23:29:02Z
dc.date.available2016-11-04T23:29:02Z
dc.date.issued2015
dc.descriptionSherpa Romeo green journal: open accessen_US
dc.description.abstractIn the present study we investigate age-related changes in hand preference for grasping and the influence of task demands on such preference. Children (2–11), young-adults (17–28) and older-adults (57–90 ) were examined in a grasp-to-eat and a grasp-to-construct task. The end-goal of these tasks was different (eat vs.construct) as was the nature of the task(unimanual vs. bimanual). In both tasks,ipsilateral and contralateral grasps were analyzed. Results showed a right-hand preference that did not change with age. Across the three age groups, a more robust right-hand preference was observed for the unimanual, grasp-to-eat task. To disentangle if the nature (unimanual) or the end-goal (grasp-to-eat) was the driver of the robust right-hand preference,a followup experiment was conducted.Young-adult participants completed a unimanual grasp-to-place task. This was contrasted with the unimanual grasp-to-eat task and the bimanual grasp-to-construct task.Rates of hand preference for the grasp-to-eat task remained the highest when compared to the other two grasping tasks. Together, the results demonstrate that hand preference remains stable from childhood to older adulthood, and they suggest that a left hemisphere specialization exists for grasping, particularly when bringing food to the mouth.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationGonzalez, C. L. R., Flindall, J. W., & Stone, K. D. (2015). Hand preference across the lifespan: effects of end-goal, task nature, and object location. Frontiers in Psychology, 5:1579. doi:10.3389/fpsyg.2014.01579en_US
dc.identifier.urihttps://hdl.handle.net/10133/4659
dc.language.isoen_CAen_US
dc.publisherFrontiers Mediaen_US
dc.publisher.departmentDepartment of Kinesiology and Physical Educationen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.subjectVisuomotor controlen_US
dc.subjectLeft hemisphereen_US
dc.subjectAction intenten_US
dc.subjectDevelopmenten_US
dc.subjectSenescenceen_US
dc.subjectHand preferenceen_US
dc.subjectRight hand preferenceen_US
dc.subjectGrasp-to-placeen_US
dc.subjectGrasp-to-constructen_US
dc.subjectGrasp-to-eaten_US
dc.subjectGraspingen_US
dc.titleHand preference across the lifespan: effects of end-goal, task nature, and object locationen_US
dc.typeArticleen_US
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