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dc.contributor.authorJohnson, Kyle
dc.date.accessioned2018-09-18T19:58:47Z
dc.date.available2018-09-18T19:58:47Z
dc.identifier.urihttp://hdl.handle.net/10464/13674
dc.description.abstractThis thesis investigated initial threat-induced changes in emotional, cognitive, and postural control measures and adaptation of these measures to repeated threat exposure in healthy young and older adults. Twenty-seven young and twenty-seven older adults stood on a platform under no threat and threat conditions. Postural threat was manipulated by altering the expectation of a temporally and directionally unpredictable mediolateral support surface translation during quiet standing. Regardless of age, participants were more anxious, reported broad changes in attention focus, and increased centre of pressure (COP) amplitude and frequency with first threat exposure. With early threat exposure, participants were less anxious and increased COP frequency. With repeated threat exposure, participants were less anxious, reported reductions in threat-induced changes in attention focus, and decreased high frequency COP displacements. These results suggest young and older adults demonstrate similar patterns of emotional, cognitive, and postural adaptations to initial and repeated threat exposure.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectAdaptationen_US
dc.subjectAgeen_US
dc.subjectAnxietyen_US
dc.subjectAttentionen_US
dc.subjectPostureen_US
dc.titleEmotional, cognitive, and postural adaptations to repeated postural threat exposureen_US
dc.typeElectronic Thesis or Dissertationen
dc.degree.nameM.Sc. Applied Health Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentApplied Health Sciences Programen_US
dc.degree.disciplineFaculty of Applied Health Sciencesen_US
refterms.dateFOA2021-08-11T02:56:01Z


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