Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison

dc.contributor.advisorDingwell, Jonathan B.
dc.creatorDevine, Mary Rose
dc.date.accessioned2016-10-18T17:36:54Z
dc.date.available2016-10-18T17:36:54Z
dc.date.issued2016-08
dc.date.submittedAugust 2016
dc.date.updated2016-10-18T17:36:54Z
dc.description.abstractHuman movements are variable, even in well-learned, controlled tasks of repeated movements. Simple models of repeated movements help us understand how the control of movements and the inherent noise in a system interact and influence the measurable variability in the outcome movements (the task). Here, we compare contemporary models for correcting repeated movements in the presence of noise, with a redundant goal (i.e. one that has many solutions) in the two dimensional task space. We show that the models share a similar structure, and explain their differences in noise processes. We compare simulations of model behavior to data from a previously published reaching task, to understand what features of the models we need in general. Ultimately, our simulations show that the correction or controller with free parameters in two independent directions is necessary to describe two-dimensional tasks in general. However, we cannot conclude in favor of one model over the other, because simulations also show that either of the different noise processes is sufficient.
dc.description.departmentKinesiology and Health Education
dc.format.mimetypeapplication/pdf
dc.identifierdoi:10.15781/T2PG1HQ22
dc.identifier.urihttp://hdl.handle.net/2152/41706
dc.language.isoen
dc.subjectRedundancy
dc.subjectMotor Control
dc.titleTwo-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison
dc.typeThesis
dc.type.materialtext
thesis.degree.departmentKinesiology and Health Education
thesis.degree.disciplineKinesiology
thesis.degree.grantorThe University of Texas at Austin
thesis.degree.levelMasters
thesis.degree.nameMaster of Science in Kinesiology
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