Effects of Different Musical Wave Types on the EEG: A Pilot Case Study

不同波形的音樂介入時，在腦波圖中所顯示的差異－一個前趨個案研究

施以諾(Yi-Nuo Shih) ； 江漢聲(Han-Sun Chiang)

《輔仁醫學期刊》 2卷3期 (2004/09) Pp. 213-217

摘要

研究者嘗試將方形波、三角形波、鋸齒狀波三種不同波形的音樂給一個個案聽，並將三種音樂的音長、音高、音強控制為定值，與沒有音樂時做比較，比較這三種音樂介入時腦波在EEG內的改變。結果發現相對於無音樂時，三角形波與方形波介入時，個案的α腦波會增加；相對於無音樂時，鋸齒狀波介入時，個案的β腦波會增加。這個初步的發現跟音樂學的作曲學原理類似，期待往後能有更明確的數據，還需藉由腦波統計儀器來分別算出α腦波與β腦波在四種情況下所分別出現的次數，並多收集更大量的樣本資料，才能做出更確切的推論。

關鍵字

音樂治療 ； 音色 ； 三角型波 ； 鋸齒狀波 ； 方形波 ； 腦電波圖

並列摘要

For a selected subject, we chose music with 3 wave types (square wave, triangular wave, and serrated wave), and set constant values for the length, pitch, and volume of the music. When the patient was asked to listen to these 3 types of music, we recorded changes of her brain waves with an EEG and compared them to the ordinary state from her brainwaves to determine the effect of stimulation by these 3 types of music. The results of the study found that α-brain waves increased in occurrence with triangular and square wave-type music, and that β-brain waves increased with the serrated wave-type music. Those preliminary findings are similar to the principle of composing music, however, the results of this study need to be duplicated with larger sample sizes and the use of statistics.

並列關鍵字

music therapy ； tone color of music ； triangle wave ； serrated wave ； square wave ； EEG