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An event-related visual occlusion method for examining anticipatory skill in natural interceptive tasks

Mann, David, Abernethy, Bruce, Farrow, Damian, Davis, Mark and Spratford, Wayne (2010) An event-related visual occlusion method for examining anticipatory skill in natural interceptive tasks. Behaviour Research Methods, 42 (2). pp. 556-562. ISSN 0001-6918

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This article describes a new automated method for the controlled occlusion of vision during natural tasks. The method permits the time course of the presence or absence of visual information to be linked to identifiable events within the task of interest. An example application is presented in which the method is used to examine the ability of cricket batsmen to pick up useful information from the prerelease movement patterns of the opposing bowler. Two key events, separated by a consistent within-action time lag, were identified in the cricket bowling action sequence—namely, the penultimate foot strike prior to ball release (Event 1), and the subsequent moment of ball release (Event 2). Force-plate registration of Event 1 was then used as a trigger to facilitate automated occlusion of vision using liquid crystal occlusion goggles at time points relative to Event 2. Validation demonstrated that, compared with existing approaches that are based on manual triggering, this method of occlusion permitted considerable gains in temporal precision and a reduction in the number of unusable trials. A more efficient and accurate protocol to examine anticipation is produced, while preserving the important natural coupling between perception and action.

Item Type: Article
Uncontrolled Keywords: ResPubID21118, ResPubID21957, visual acuity, cricket batsmen, perception movement
Subjects: Current > FOR Classification > 1106 Human Movement and Sports Science
Current > FOR Classification > 1702 Cognitive Science
Historical > SEO Classification > 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Historical > Faculty/School/Research Centre/Department > Institute of Sport, Exercise and Active Living (ISEAL)
Depositing User: VUIR
Date Deposited: 11 May 2012 04:29
Last Modified: 25 Mar 2013 00:34
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Citations in Scopus: 12 - View on Scopus

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