31.12.2012 Views

International Journal of Sport Psychology

International Journal of Sport Psychology

International Journal of Sport Psychology

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

experience and specific expertise. Thus, there was a difference in saccade<br />

rate between goalkeepers and field players during drag flicks, but not during<br />

the push or slap actions. Rendell and Morgan (2005) interpreted this finding<br />

as further evidence for the suggestion that the development <strong>of</strong> expertise is<br />

rather task-specific.<br />

Williams, Ward and Chapman (2002) examined the influence <strong>of</strong> a videobased<br />

perceptual training program in 24 female hockey players using a<br />

typical pre-post-test design. The experimental group trained with video<br />

sequences <strong>of</strong> penalty flicks while neither the control nor the placebo group<br />

received this special training. Results revealed that the goalkeepers who<br />

underwent the perceptual training reduced their response times significantly,<br />

while maintaining the same accuracy level as in the pre-test. Furthermore,<br />

Williams and colleagues included a transfer test from the laboratory to the<br />

field. Results showed that the perceptual training group also reduced their<br />

response time in the field setting. Thus, Williams et al. (2002) provided<br />

evidence that perceptual skills trained with a video-based perceptual training<br />

program transfer to the field setting.<br />

Panchuk and Vickers (2006) examined gaze and motor behaviour <strong>of</strong><br />

expert goalkeepers when asked to react to wrist shots taken from 5 m and 10<br />

m on ice. They showed that the ability to save the puck depended on the<br />

location, onset and duration <strong>of</strong> the final fixation prior to the saving action,<br />

referred to as the quiet eye period. Best performances where achieved when<br />

the quiet eye was directed to the puck and stick area or to the ice in front <strong>of</strong><br />

the puck. Yet, the body <strong>of</strong> the shooter was rarely focussed during the quiet<br />

eye period.<br />

To the best <strong>of</strong> our knowledge, and despite its importance, no researchers<br />

have looked into penalty corners in field-hockey. Additionally, in most research<br />

on penalty situations in other sports, investigators have tended to compare<br />

skilled with less skilled goalkeepers. However, even at high levels <strong>of</strong> performance<br />

some goalkeepers perform significantly better than others in penalty situations<br />

(e.g., Savelsbergh et al., 2005; Van der Kamp, 2001). Do these performance<br />

differences relate to different visual information pick-up strategies?<br />

In order to pick up the most useful information and to stop a penalty<br />

corner, goalkeepers may use two different strategies. One strategy could be<br />

to first focus on the pusher and then follow the ball to the centre <strong>of</strong> the circle<br />

where the stopper and drag flicker prepare to shoot the ball at the goal. This<br />

is referred to as the ‘keep the eye on the ball’ strategy (Cr<strong>of</strong>t, Button, &<br />

Dicks, 2009; Savelsbergh & Davids, 2002; Whiting, 1969). Alternatively,<br />

goalkeepers may directly focus on the centre <strong>of</strong> the circle to monitor the<br />

behaviours <strong>of</strong> the stopper and the drag flicker. Following the ‘keep the eye on<br />

330

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!