The relationship between human ablities of left-handed and right-handed and functional assymmetry in hemisphers of the brain. - a study is to compare musical ability of left-handed and right-handed between the Japanese and foreigner (The American) -

本研究的目的是比较日本人和外国人(美国人)左撇子和右撇子的音乐能力。本研究结果如下：1.研究结果。在旋律记忆测验和带词旋律记忆测验中，与日本人和美国人相比，左撇子和右撇子在音乐专业组和非音乐专业组都能记住更多的旋律，其中左撇子和R.C.L.占优势。在《带词的旋律记忆测验》中，无论是在日本还是在美国，都可以看到从R.C.L.(音乐大脑)到L.C.L.(单词大脑)的回归。在“和声”的情况下，日本人的反应比美国人快。这是因为日语词的功能与情感功能的联系比美国人更紧密。在音高测试中，无论是左撇子还是右撇子，美国音乐主要群体的反应错误率都比日本人(9%)高出1-2%。即使在非音乐专业群体中，左撇子的回答错误也比右撇子高：美国左撇子19%(日本人23%)，右撇子30%(日本人25%)。在节奏测试、音色测试和音调记忆测试中，结果显示出与上述实验相似的趋势。

The purpose of this study is to compare musical ability of left-handed and right-handed between the Japanese and foreigner (The American). Result of the present study is as follows.1. In both Memory of Melody Test and Memory of Melody with words Test,comparing to the Japanese and the American can remember more melody in both music major groups and non-music major groups of left-handed and R.C.L. is dominated.2. In the Memory of Melody with words Test,reversion from R.C.L.(musical brain) to L.C.L.(word brain) can be seen in both Japanese and American. In case of "in harmonic" sound Japanese has respond faster than American. This is because Japanese words function is connected to emotional function tighter than that of American.3. In the Pitch Test,the American music major groups,both in left-handed and right-handed,is superior in1-2% of rate of response error to that of the Japanese(in 9%). Even in non-music major groups, higher response error was obtained in left-handed than in right-handed: The American left-handed 19 % (Japanese 23%) and right-handed 30 %(Japanese 25%).4. In the Rhythm Test,the Timbre Test and Tonal Memory Test,the results show similar tendency as above experiments.