中式炒鍋大小對於廚師大小重量錯覺之效應

The effect of Chinese wok size on size-weight illusion of cooks

10.6848/JWL.201803_5(2).0007

吳水丕(Swei-Pi Wu)；黃健豪(Jian-Hao Huang)；陳廷瑋(Ting-Wei Chen)

廚師 ； 職業傷害 ； 中式炒鍋 ； 炒鍋作業 ； 大小/重量錯覺 ； cook ； occupational injury ； chinese wok ； flipping task ； size-weight illusion

工作與休閒學刊

5卷2期（2018 / 03 / 01）

189 - 202

繁體中文

研究顯示在相同質量下，較大的目標物感覺上比較小的目標物來的輕，這種現象即所謂的大小/重量錯覺(size-weight illusion)。廚師在炒菜作業下，若較大的炒鍋伴隨重量知覺的減少，則可能導致廚師每次炒菜的質量過重而超過安全限制。有鑒於國內鮮少就大小重量錯覺來探討炒鍋大小之效應。所以本研究乃針對國內廚師在使用炒鍋炒菜時，是否受到大小重量錯覺的影響進行研究。本研究係以實驗性的研究來探討炒鍋直徑大小與質量大小對於廚師大小重量錯覺的效應。共徵募16位男性受試者，以探討三種不同的炒鍋大小(直徑分別為32、37、40公分)和質量(1.5、2.1、2.4公斤)下相對於標準刺激(質量=1.8公斤；直徑=35公分)之重量知覺、體積知覺和施力知覺。研究結果發現炒鍋大小對於重量知覺、體積知覺及施力知覺皆有顯著效應，而質量對於重量知覺和施力知覺有顯著的效應。當質量相同時重量知覺會隨著炒鍋大小的增加而減少；炒鍋大小從直徑32公分增加至40公分時，其重量知覺下降約27%，施力知覺下降約13%。顯示大小/重量錯覺對於廚師有所影響。所以為了有效預防炒鍋大小對廚師之施力錯覺效應，宜特別加強廚師的安全教育與規範。

The larger of two equally weighted objects is judged to be lighter when lifted. This phenomenon is commonly known as the size-weight illusion. Size-weight illusion could be important for the study of flipping tasks, since any decrease in perceived heaviness accompanying larger woks could lead the cook to exceed the limits of safety. Though size-weight illusion has been studied extensively in experiment psychology, empirical study on flipping tasks until now has not been conducted. Therefore, this study intent to investigate the effects of wok size on the size-weight illusion of stir flipping tasks for Chinese cooks. This study recruited 16 subjects to conduct flipping task, and to investigate the perceived heaviness, perceived volume, and perceived exertion of the different combinations of object size (diameter of 32, 37, 40 cm) and mass (1.5, 2.1 and 2.4 kg). The mass affects significantly on the perceived heaviness, and perceived exertion, however, couldn't affect significantly on the perceived volume. The effects of the wok size on the perceived heaviness, perceived volume, and perceived exertion is significant. The result showed that the size-weight illusion exists in the Chinese wok flipping task. As the volume of the wok's diameter from 32 to 40 cm, the reports of perceived heaviness decreased 27 % and 13 % repectively.

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