- 期刊
桌球選手慣用手對側視野物體追蹤能力之影響
Influence of Table Tennis Players' Dominant Hand on Contralateral Visual Field's Object Tracking Capability
摘要
許多研究表示人類左右腦半球各自擁有獨立的注意力資源，但目前並沒有研究針對左右注意力資源容量的大小進行探討，因此本研究招收臺灣甲組桌球選手為受試者，以多物體追蹤（multiple object tracking, MOT）任務進行分析。本研究目的欲探討優秀桌球選手的左右腦半球注意力資源容量大小是否會受到慣用持拍手的影響。招募28名甲組桌球選手（男性13名、女性15名），其中慣用持拍手8名為左手、20名為右手。以受試者慣用持拍手區分同側與對側注意力資源，並在MOT任務中操控目標顆數（1顆或2顆）、速度（0.6每秒鐘轉速 [revolution per second, r/s], 0.9 r/s, 1.2 r/s）、視野（左側或右側）組合不同實驗情境進行檢測。研究結果顯示：一、慣用手對側視野的整體追蹤正確率比同側高。二、慣用手對側之注意力資源可以比同側追蹤更快速移動的目標物。三、在追蹤慢速與1顆或2顆目標物情境中，對側與同側追蹤視野間的追蹤正確率沒有出現顯著差異。本研究結論認為桌球選手左右腦半球之注意力資源容量會受到慣用手所影響，桌球選手慣用手之對側注意力資源容量較大，在追蹤速度0.9 r/s追蹤正確率可達90%以上，速度1.2 r/s可達70%以上。建議未來應該以慣用手之對側視野注意力資源容量作為長期依賴單手進行運動訓練之選手的MOT能力評估。
並列摘要
Previous studies showed that humans have attention resources independently in both hemispheres, but research investigating on the capacity of hemisphere-specific attention resources is limited in elite table tennis (TT) players. The purpose of the study was to investigate whether hemisphere-specific attention resource capacity is influenced by the dominant hand of the elite TT players. Twenty-eight Taiwanese national level TT players (13 males and 15 females) were recruited, including 8 left-handed and 20 right-handed TT players. The number of tracked targets (1, 2), the target moving speeds (0.6 revolution per second (r/s), 0.9 r/s, 1.2 r/s) and the tracking visual field (left or right) were manipulated in the multiple object tracking (MOT) task, which measured the attention resource capacity, and the definition of ipsilateral or contralateral attentional resources was based on the subject's dominant hand. Results indicated that: (1). The tracking accuracy in the contralateral visual filed of the dominant hand is significantly higher than that of the ipsilateral visual field. (2). The contralateral attention resource with dominant hand supports TT players tracking faster moving targets. (3). The tracking accuracy is not significantly different between contralateral and ipsilateral visual fields, as tracking in the slow speeds and condition of the 1 and 2 targets. In conclusion, the tracking performance in the MOT task is affected by the dominant hand of the TT players. The TT players have higher capacity in the contralateral attention resources to the dominant hand, which tracking accuracy can reach more than 90% at a tracking speed of 0.9 r/s, and more than 70% in tracking speed of 1.2 r/s. The contralateral visual field's attention resources to the dominant hand may be used as the MOT ability evaluation for athletes who engaged in single-hand racket sport training.