UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

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Author: search.filters.author.Christensen, Kelsey AnnSubject: search.filters.subject.Motor Synergy

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    THE ORGANIZATION OF MOTOR SYNERGIES IN ONE-PERSON AND TWO-PERSON MULTI-FINGER FORCE PRODUCTION TASKS
    (2017) Christensen, Kelsey Ann; Shim, Jae K; Kinesiology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Humans perform motor tasks every day, both individually and with others. Performing motor tasks involves the organization of motor synergies, task-specific groupings of individual motor effectors that are temporarily constrained to act as a single unit and whose total combined output ensures stability of the overall task performance. Both intra- and inter-personal motor synergies have been found to exist in one-person and two-person motor tasks, respectively. Not as clear, however, is whether separate synergies can exist simultaneously on multiple levels of control within a given task. The purpose of the current study is to investigate the organization of force-stabilizing motor synergies during one-person and two-person finger-force production tasks using the Uncontrolled Manifold Analysis. We expect to find both intra- and inter-personal motor synergies, an increase in synergy strength as tasks require more motor effectors, but the lack of simultaneously-occurring motor synergies on multiple levels of control within the given tasks.