Salmela J H, Fiorito P
Can J Appl Sport Sci. 1979 Mar;4(1):56-9.
The effect of both the availability and the quality of visual cues preceding stick-puck contact was investigated for an ice hockey goaltending task. Thirty-four young (15.8 years) goaltenders observed filmed sequences of a hockey player approaching the net and directing a shot to one of the four corners. The film sequences were edited so that 2, 4 or 8 images were occluded prior to the impact of the stick with the puck, reflecting durations of 1/12, 1/6, 1/3 of a second, respectively. The subjects' performances for both the wrist and the slap shot were measured as well as the level of response confidence in both the horizontal and vertical planes. The results indicated that performance precision was aided by the increased availability of pre-shot visual cues. It was also evident that the wrist shot provided more cues for the goaltender than did the slap shot. Performances were found to be superior in the horizontal as compared to the vertical plane. In all dimensions, the subjects' perceptions of their success closely followed the actual performance patterns. It appeared that information that could facilitate anticipation in this goaltending task was both available and useable during the period that precedes the shot.
针对冰球守门任务,研究了球杆与冰球接触前视觉线索的可用性和质量的影响。34名年轻(15.8岁)守门员观看了一名曲棍球运动员接近球网并将球射向四个角落之一的拍摄序列。对影片序列进行编辑,以便在球杆与冰球撞击前遮挡2、4或8张图像,分别对应1/12秒、1/6秒、1/3秒的时长。测量了受试者在手腕射门和抽射时的表现,以及在水平和垂直平面上的反应信心水平。结果表明,射门视觉线索可用性的增加有助于提高表现精度。同样明显的是,手腕射门比抽射为守门员提供了更多线索。与垂直平面相比,水平面上的表现更优。在所有维度上,受试者对自己成功的感知与实际表现模式密切相关。在这个守门任务中,似乎在射门之前的时间段内,有助于预判的信息是可用且可利用的。