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  • 學位論文

黃色與白色對反應時間和事件關連電位之影響

Effects of yellow and white on reaction time and event-related potentials

指導教授 : 陳錦龍
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摘要


本研究目的在藉由事件關連電位(event-related potential, ERP)探討黃白兩種不同顏色對反應時間(reaction time)的影響。比較兩種顏色在反應時間、中樞訊息處理速度(premotor time, PMT)、周邊執行速度(motor time, MOT)及FSP、SN、N2b、P300等事件關連電位指標的影響效果。受試者為24名身體健康的大學在學男生,年齡20至24歲,受試者隨機分派至黃色組與白色組各12名。刺激呈現是以電腦黑色螢幕為背景的圓形色圈,當色圈具有缺口時(機率為1/5)受試者須按壓按鍵反應;反之,若色圈無缺口時(機率為4/5)則不必反應。二種光圈隨機呈現。正式測試時黃色組使用黃色色圈而白色組則使用白色色圈,以EMG和EEG收集(或計算)RT、PMT、MOT及ERP電位指標FSP、SN、N2b、P300等資料。經分析結果顯示黃色與白色在反應時間、中樞訊息處理速度(PMT)、周邊執行速度(MOT)、及FSP、SN、N2b之延遲時間均無顯著差異。然而,白色的P300的延遲時間(latency)快於黃色並達顯著水準。

並列摘要


The purpose of the study was to examine effects of yellow and white colors on reaction time (RT). The parameters of RT included the central information processing speed (premotor time, PMT) and the peripheral executing speed (motor time, MOT). Also, the event related potentials (ERP) including FSP, SN, N2b and P300, were compared between the two colors. Twenty-four male college students, from 20 to 24 years old, served as subjects who were randomly assigned to yellow and white color groups with each group twelve people. The stimulus was a round graphics in computer monitor with black background. When a round graphics with an open mouth showed (the chance was 1/5) the subject should depress button. Otherwise, a round graphics without any open mouth (the chance was 4/5) showed, no response was required. Both graphics appeared randomly. The round graphics with yellow color was used for yellow group and that with white color was used for white group. The EMG and EEG were employed to collect (or calculate) RT, PMT, MOT, FSP, SN, N2b and P300. The data indicate that the reaction time (RT), the central information processing speed (PMT), the peripheral executing speed (MOT), the latencies of FSP, SN and N2b are not different between yellow and white colors. However, that of P300 for white color is faster than that of yellow. Keywords: Reaction time , Yellow , White (ERP)

參考文獻


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