發(fā)布時間：2018-05-27 17:38

  本文選題：女大學生 + 甜食線索�。� 參考：《鄭州大學》2017年碩士論文

【摘要】：對甜食線索的注意偏向是指相對于中性線索或低能量食物線索,個體對甜食線索的選擇性注意,具體表現為對甜食線索的定向、維持或回避。對甜食線索的注意偏向訓練是指通過一系列訓練調節(jié)個體對甜食線索的注意增強或注意減弱。本研究在已有相關研究的基礎上,采用行為學研究方法探討了女大學生對甜食線索的注意偏向,并嘗試采用新的注意偏向訓練方法——眼跳訓練任務探討對甜食線索的注意偏向訓練效果。實驗一采用空間線索提示范式,以對探測刺激的反應時為因變量,探討相對于低能量食物線索及中性線索,女大學生對甜食線索是否存在注意偏向,及線索呈現時間為200ms和500ms時注意偏向的成分。被試為鄭州大學女大學生52名,BMI指數均位于18.50-24.99之間(正常體重)。采用2(線索呈現時間:200ms;500ms)x 2(線索類型:中性圖片;低能量食物圖片;甜食圖片)x 2(線索提示類型:有效線索;無效線索)的混合實驗設計。實驗二運用眼動研究,以對甜食線索的首視點定向偏向分數、首視點注視時間偏向分數及總注視時間偏向分數為因變量,利用Fixation Trigger控件探討眼跳訓練任務(朝向眼跳訓練任務和反向眼跳訓練任務)是否可以改變被試對甜食線索的注意偏向。采用2(測量階段:前測;后測)x 2(偏向訓練條件:趨向甜食組;回避甜食組)的混合實驗設計。實驗一結果表明,有效線索條件下,線索呈現時間為200ms時,被試對以甜食圖片為線索的探測刺激的反應時顯著小于以中性圖片及低能量食物圖片為線索的探測刺激的反應時,對以低能量食物圖片與以中性圖片為線索的探測刺激的反應時沒有顯著差異;無效線索條件下,當線索呈現時間為500ms時,被試對以甜食圖片為線索的探測刺激的平均反應時顯著大于以中性圖片及低能量食物圖片為線索的探測刺激的平均反應時,對以低能量食物圖片與以中性圖片為線索的探測刺激的反應時也沒有顯著差異。實驗二結果表明,回避甜食組經過反向眼跳訓練后對甜食線索首視點注視時間及總注視時間偏向分數的顯著減少,而首視點定向偏向分數沒有顯著變化;而趨向甜食組經朝向眼跳訓練后對甜食線索的首視點定向及首視點注視時間偏向分數顯著地增加,總注視時間偏向分數沒有發(fā)生顯著變化。通過對結果的分析,得出如下結論:(1)相對于低能量食物線索和中性線索,被試對甜食線索注意偏向特點都表現為注意定向-維持模式。200ms時表現為對甜食線索的注意定向,500ms時表現為對甜食線索的注意維持;而相對于中性線索,并不存在對低能量食物線索的注意偏向。(2)眼跳訓練任務能夠有效地調節(jié)女大學生對甜食線索的注意偏向。其中,反向眼跳訓練降低對甜食線索的早期階段和總注意維持,主要是增強了女大學生對甜食線索的注意解除能力;朝向眼跳訓練不僅增加了對甜食線索的注意維持,還可能增加對甜食線索的注意定向。
[Abstract]:The attention bias to sweet cues refers to the selective attention of the individual to the sweet cues relative to the neutral clue or the low energy food clue. The specific expression is the orientation of the sweet cues, the maintenance or avoidance of the sweet clues. The attention bias training for the sweet clues refers to the enhancement or attentional attendant of the sweets clue through a series of training. On the basis of relevant research, the study explored the bias of female college students' attention to sweet food clues by behavioral study methods, and tried to use a new attention bias training method, the training task of saccade training, to study the effect of attention bias on sweet food clues. The reaction time was dependent on the dependent variable, and compared with the low energy food clues and neutral clues, the female college students had attention bias to the sweet food clues, and the clue presentation time was 200ms and 500ms. The 52 female college students in Zhengzhou University, the BMI index in the 18.50-24.99 (normal weight). Present time: 200ms; 500ms) x 2 (clue type: neutral picture; low energy food picture; sweet food picture) x 2 (clue type: effective clue; ineffective clue) mixed experimental design. Experiment two use eye movement study to determine the orientation bias score of the first view point of the sweet food clue, the first view fixation time bias and the total fixation time bias. For the dependent variable, the Fixation Trigger control is used to explore whether the saccade training task (toward the saccade training task and the reverse saccade training task) can change the attention bias of the subjects on the sweets cues. 2 (measurement stage: pre test; post test) x 2 (bias training conditions: tendency to dessert group; avoidance of dessert group) The results showed that when the cue presentation time was 200ms, the response of the subjects to the detection stimulus with the sweet picture as a clue was significantly less than the response to the detection stimulus with the neutral picture and the low energy food picture as a clue. There were significant differences; under the condition of ineffective clues, when the time of clue presentation was 500ms, the average response of the subjects to the detection stimulus with the sweet picture as the clue was significantly greater than the mean response to the neutral picture and the low energy food picture as the clue. The results showed that there was no significant difference in the reaction time. Experiment two showed that the dessert group after the reverse saccade training had a significant decrease in the fixation time of the first sight and the total fixation time, while the orientation of the first view orientation did not change significantly. The orientation and the first view fixation time bias increased significantly, and the total fixation time bias did not change significantly. Through the analysis of the results, the following conclusions were obtained: (1) compared with the low energy food clues and neutral clues, the attention bias characteristics of the dessert cues were all manifested by the attention orientation maintenance model.200ms. Attention orientation for sweet food clues, 500ms displayed as the attention to the attention of the sweet clues; and relative to neutral clues, there is no attention bias to low energy food clues. (2) saccade training tasks can effectively regulate female college students' attention bias to sweet food clues. The segment and the maintenance of the total attention are mainly to enhance the ability of the female college students to dissolve the sweets' clues. The orientation of the saccade training not only increases the attention to the sweet clue, but also increases the attention orientation of the sweet cues.
【學位授予單位】：鄭州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：B842.3

【相似文獻】

相關碩士學位論文 前2條

1 王慧;女大學生對甜食線索的注意偏向及偏向訓練效果研究[D];鄭州大學;2017年

2 王雪利;不同羞怯水平大學生對面孔圖片注意偏向的眼動研究[D];鄭州大學;2017年

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本文編號：1943176