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농구 숙련성과 무빙윈도우기법을 활용한 환경시 범위에 따른 공격자의 시각탐색과 지각한 시각-초점 영역 및 의사결정의 차이
이승민 ( Seungmin Lee ),( Bazarragchaa Ganzorig ) 한국스포츠과학원 2015 체육과학연구 Vol.26 No.3
The purpose of this research was to investigate the difference in decision making and perceived eye-focus location on peripheral vision and attacker``s expertise in basketball tactical game. A total of twenty four subjects who were expert guard players (n=8), expert basketball center players (n=8), and novices (n=8), participated in this experiment. All subjects participated two tasks. The first task was to anticipate the attack direction after viewing a sequence of basketball tactic film. These films simulated three situations including offensive patterns. The three situations were consist of 3, 6, 9 degree peripheral vision. The second task was to express the level of confidence on their anticipation and to verbalize the perceived visual cues immediately after responding. For this research, an Eyelink eye movement system, an equipment for measuring anticipating, basketball tactic film were used. The variables on anticipation of attack direction were speed, accuracy, and the level of confidence. The acquiring process of advanced visual cues was examined through analyzing visual search strategies and perceived eye-focus location. In order to examine the difference in visual search, in decision making, and in perceived eye-focus locations as a function of expertise, data were analyzed through descriptive statistics, two-way ANOVA, and two-way MANOVA. This research had the following results. First, there was a significant difference on the search rate among the three groups. But, on the other hand, expert guard and center exhibited more fixations of shorter duration than the novices in the 6 and 9 degree condition. Second, results from the ratio of fixation time allotted to areas in the 3 degree condition revealed that experts spent more time fixating the ball-attacker (BA) than novices. The results from the ratio of fixation time allotted to areas in the 6 and 9 degree condition revealed that expert guard and center spent more time fixating the non-ball attacker (NBA) than novices. Expert guard also fixated longer on the pass attacker (PA) and meaning space (MS) than novices. Finally, experts paid attention to two or three locations simultaneously, whereas novices did to only one location such as the ball, attacker, defender, non-meaning space in all condition.
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우리는 환경시를 통해 무엇을 지각하는가?: 핸드볼 경기에서 사전시각단서 획득과 환경시의 역할
이승민,김민영,박승하 한국스포츠심리학회 2022 한국스포츠심리학회지 Vol.33 No.1
Purpose: The purpose of this study was to investigate the effects of decision-making and visual search strategies based on peripheral vision and moving window paradigm in handball tactical game. Methods: A total of 12 participated in the experiment, including 6 skilled handball players and 6 novices. The experimental task performed the task by watching a handball attack tactical video in which all study participants were eye movement tracking devices and scaled the range under three conditions. Independent sample t-test was conducted to identify differences in the attacker’s proficiency and visual search strategies depending on the scope of the environment. Results: First, skilled were found to be more accurate in decision making and faster than novices. Second, the frequency of eye fixation showed that skilled have less frequency of eye fixation than novices. Third, skilled fix their eyes on the attacker’s area at a high rate, and beginners have shown a high rate of gaze fixation on the meaningless spatial area along with the attacker’s area. Conclusion: The frequency of gaze fixation and number of gaze movements in the visual search characteristics of skilled were seen through moving window techniques that adjust the scope of environmental vision by fixing eyes on major clues and obtaining information from the surrounding area.
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