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dc.contributor.supervisor Brown, Lesley Kempster, Cody C. University of Lethbridge. Faculty of Arts and Science 2011-11-09T02:25:46Z 2011-11-09T02:25:46Z 2010
dc.description xi, 107 leaves : ill. ; 29 cm en_US
dc.description.abstract The purpose of this thesis was to investigate the influence of postural anxiety on the capacity for Flexible Resource Allocation (FRA) among younger (YA) and older adults (OA). Two experiments were conducted to explore (a) the influence of heightened postural anxiety on the flexible allocation of attention among OA and (b) the influence of concurrent postural challenge and postural anxiety on FRA among YA. Participants performed a postural task concurrently to a cognitive task according to three instructional sets directing task priority. Experiment one revealed that FRA was compromised among OA during circumstances of heightened anxiety. This capacity however, remained available among YA. Therefore, for the second experiment I varied the support surface to explore whether the capacity for FRA could be sustained when posture was challenged beyond static stance. Results indicated that YA altered cognitive task performance according to instructional set without compromising postural stability. These findings suggest that even when posture is challenged during heightened postural anxiety, YA maintain the capacity to automatically allocate attention to a postural task while performing a secondary task. Conversely, it seems that heightened postural anxiety strengthens the attentional bias to posture and subsequently compromises FRA among OA. Overall, results from this thesis suggest that the capacity for FRA is age and situation dependent. en_US
dc.language.iso en_US en_US
dc.publisher Lethbridge, Alta. : University of Lethbridge, Dept. of Kinesiology, 2010 en_US
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en_US
dc.subject Posture -- Research en_US
dc.subject Equilibrium (Physiology) -- Research en_US
dc.subject Older people -- Orientation and mobility -- Research en_US
dc.subject Falls (Accidents) in old age -- Research en_US
dc.subject Dissertations, Academic en_US
dc.title Postural anxiety influences the allocation of attentional resources among younger and older adults en_US
dc.type Thesis en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Kinesiology en_US Masters

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