Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.582871
Title: The information underpinning anticipation of goal-directed throwing
Author: Bourne, Michael
Awarding Body: Liverpool John Moores University
Current Institution: Liverpool John Moores University
Date of Award: 2012
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Abstract:
Abstract The aim of this thesis was to examine the informational value of handball penalty biological motion for anticipation. Differences in the dynamical structure of handball penalty throwing as a factor of target were examined using principal components analysis (Pf.A). Target differences were identifiable at the level of the eigenvalue, corresponding time evolution and linear displacement scaling, but not at the level of the eigenvector coefficient. Experiments 2 and 3 examined if skilled and less-skilled participants were able to anticipate throw direction from the same biological motion information under non-manipulated, spatially neutralised (target specific motion removed) and spatially decoupled (timing between locations modified) conditions. Anticipation above chance was consistent under non-manipulated conditions. Target specific motion of the throwing arm was identified as critical for anticipating goal- directed throwing and skilled participants were found to benefit from the extraction of additional information spread 'globally' across a stimulus (e.g. from the shoulders and hips). Relative motion between marker locations was shown to inform the anticipation process. The informational value of throwing arm biological motion in isolation was examined in Experiments 4 to 6. Throwing arm biological motion only was shown to be sufficient for reliable anticipation judgments. Wrist motion was identified as a significant, but not critical, contributor to anticipation, though humeral throwing arm motion was found to be similarly informative. Finally, the effect of exaggerating or attenuating the amplitude of marker location displacement was investigated for the throwing arm. Amplitude in 'optimal' quantities was shown to facilitate the informational properties of the arm.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.582871  DOI: Not available
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