在桌球比賽當中，優秀球員總是能成功地接發球。過去文獻曾提到，優秀桌球選手通常會運用視覺搜索策略注意球和球軌跡以外的位置，使得他們比新手更加擅長預測對手的發球資訊。本研究目的為比較精英桌球選手與非精英選手在視覺搜索策略上的差異，包含凝視次數、凝視時間以及熱區圖，並透過穿戴式眼動儀及眼動程式分析結果。方法：本研究招募四十六位研究參與者，年齡皆為二十多歲，包含二十三位菁英以及二十三位新手，所有人均在如同真實比賽的虛擬桌球運動環境。在實驗過程中，受試者戴上Tobii Pro Glasses 2 眼動儀觀看螢幕上的發球影片，接著開始進行接發球。Tobii Pro Glasses 2會偵測受試者的目光，並將資料傳送至Tobii Pro Lab。藉由框出桌球桌與發球者身體四周，以Tobii Pro Lab計算研究參與者目光凝視各區塊的時間及凝視次數。結果：在凝視次數方面，新手的凝視次數比菁英多[F(7,308) = 714.68, p <0.001, ηp2 = 0.94] (新手 = 9.55 ± 0.13 ; 菁英 = 6.97 ± 0.13 次)。在凝視時間方面，新手看頭[t(44) = -8.53, p < 0.001] (新手 = 7.65 ± 1.09 ; 菁英 = 5.41 ± 0.63 秒)、身體[t(44) = -3.93, p < 0.001] (新手 = 4.55 ± 1.37 ; 菁英 = 3.37 ± 0.46 秒)以及其他部位[t(44) = -6.48, p < 0.001] (新手 = 2.73 ± 1.01 ; 菁英 =1.17 ± 0.55 秒)的時間多於菁英，而精英選手則是看球拍[t(44) = 8.02, p < 0.001] (菁英 = 11.15 ± 1.32 ; 新手 = 8.74 ± 1.00 秒)以及手臂[t(44) = 11.40, p < 0.001] (菁英 = 10.15 ± 1.21 ; 新手 = 6.31 ± 1.07 秒)的時間多於新手。結論：新手在各部位之間來回觀看的凝視次數比菁英多，而且較容易將目光分散在發球者的頭以及身體其他部位，而精英選手則是會將目光集中在發球者的球拍以及手臂上。

In a table tennis competition, advanced players always make many successful returns of serves. Studies have shown that high-skilled table tennis players normally tend to pay more attention to elements other than the ball trajectory by making visual saccades and displaying better anticipatory skills than novices. The purpose of this research is to investigate the table tennis data on fixation count, fixation duration, and heat map of elite and novice players doing the returns of serves. In total, 46 participants were recruited for this research, including 23 elite table tennis players and 23 novices. A Cave Virtual Environment (VE) was set in the laboratory to allow participants to be fully immersed in a life-like table tennis match. Donning the Tobii Pro Glasses 2 eye tracker, participants watched the videos displayed on the big screen and performed the return of serve. The fixation data were analyzed by Tobii Pro Lab. Results revealed that the novices had more fixation counts than the elites [F(7,308) = 714.68, p < 0.001, ηp2 = 0.94] (novices = 9.55 ± 0.13; elites =6.97 ± 0.13 times). Regarding fixation duration, the elites fixated longer than the novices on arm [t(44) = 11.40, p < 0.001] (elites = 10.15 ± 1.21; novices = 6.31 ± 1.07 seconds) and hand-and-racket [t(44) = 8.02, p < 0.001] (elites = 11.15 ± 1.32; novices = 8.74 ± 1.00 seconds), while the novices fixated longer than the elites on head [t(44) = -8.53, p < 0.001] (novices = 7.65 ± 1.09; elites = 5.41 ± 0.63 seconds), trunk [t(44) = -3.93, p < 0.001] (novices = 4.55 ± 1.37; elites =3.37 ± 0.46 seconds), and area away from the trunk [t(44) = -6.48, p < 0.001] (novices = 2.73 ± 1.01; elites =1.17 ± 0.55 seconds).

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