2009 Fiscal Year Final Research Report

Sound structure analysis and KANSEI evaluation of Georgian Polyphony

Research Project

Project/Area Number	19500184
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Sensitivity informatics/Soft computing
Research Institution	Foundation for Advancement of International Science
Principal Investigator	KAWAI Norie Foundation for Advancement of International Science, 研究開発部, 主任研究員 (50261128)
Co-Investigator(Renkei-kenkyūsha)	NISHINA Emi 放送大学, ICT活用・遠隔教育センター, 教授 (20260010) MORIMOTO Masako 国立精神・神経医療研究センター, 神経研究所, 室長 (50312210)
Project Period (FY)	2007 – 2009
Keywords	グルジア音楽 / ゆらぎ構造 / 超高周波成分 / ポリフォニー / 合唱
Research Abstract	Georgian traditional polyphony seems to be one of the origin of polyphonic chorus in Europe. We examined its physiological and psychological effects. We found that the sound of Georgian traditional polyphony contained rich and fluctuating high frequency components above the audible range of human, its unique temperament was different from twelve-tone equal temperament. We also found that these characteristics of sound structure contributed to activate potential of alpha-EEG that correlated with the activity of fundamental brain, and improved its favorable impression.

(2 results)