Oculomotor feedback on visually guided movement control in putting using Cued Retrospective Commentary K C Scott-Brown1, B Havasreti1, E Crundall2 |
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1Centre for Psychology, University of Abertay Dundee, United Kingdom |
| First-person perspective video has been shown to promote improvement in putting technique [Smith and Holmes, 2004, Journal of Sport and Excercise Psychology, 26, 385-396] however such videos introduce parallax error between shoulder-mounted camera and the true cyclopean view. We used lightweight head mounted eye-tracking equipment to eliminate parallax and record an overlaid gaze cursor at 30Hz sampling rate for the entire putting stroke. After putting, we also recorded a cued retrospective commentaries (CRC) at 25% of video playback speed to allow verbal annotation to the visual imagery stimulus. We present a training protocol based both on video exposure to expert real time third person and first person perspective CRC ‘re’view. Pre-training novice eye-movement recordings revealed anticipatory saccades to target at the onset of the downswing of the stroke, post-training recordings show increased duration of ‘quiet eye’ steady fixation during downswing. Gaze CRC extends the scope of imagery techniques to include multiple perspectives and feedback on oculomotor behaviour during stroke. CRC also enables more detailed testing of the cause of aiming errors reported in both novice and experiences putters (Johnston et al. 2003, Perception 32(9), 1151-1154). (Crundall is employed by Tracksys Ltd). |
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