![]() ![]() Hence, scholars with these insights have investigated how great ideas differ from ordinary ones and how great ideas emerge due to the recombinations of elements. Scholars have demonstrated that few ideas are exceptionally novel and influential. Following Schumpeter, scholars have employed the recombinatory approach and viewed innovation resulting from recombinations of more than two preexisting elements in knowledge fields. Innovation refers to realized, novel ideas with substantial social, economic, intellectual, or technological impacts. Throughout history, innovation has influenced human lives, knowledge, interactions, and understanding of the world. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. H.M.:Japan Society for the Promotion of Science KAKENHI Grant Number 19H01527 ( ). H.M.:Japan Society for the Promotion of Science KAKENHI Grant Number 22H00883 ( ). įunding: S.N.Japan Society for the Promotion of Science KAKENHI Grant Number 19K01923 ( ). This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All data and code files are available from the following Github repository. Received: SeptemAccepted: JPublished: July 1, 2022Ĭopyright: © 2022 Nagayama, Mitsuhashi. PLoS ONE 17(7):Įditor: Jichang Zhao, Beihang University, CHINA This study develops new opportunities for future research on the evolutionary growth of cultural production and knowledge fields.Ĭitation: Nagayama S, Mitsuhashi H (2022) Explosive and implosive root concepts: An analysis of music moods rooted by two influential rap artists. ![]() Our finding presents an alternative explanation: some root concepts (i.e., implosive ones) possess innate characteristics that limit creators from experimentally integrating diversified elements. Previous research has suggested that finding a new combination is challenging owing to creators’ limited cognitive capacities and the resulting local search. Implosive concepts are exclusive because they require creators to have network contagions with those familiar with the root concepts and have strong and specific socio-economic identities. We constructed a dataset of recombinatory patterns in the subsequent cultural production and identified two types of root concepts: implosive concepts, which artists use jointly with similar elements and explosive concepts, which artists use in conjunction with highly diversified elements. Using data on artists and albums in the rap genre from the online database Allmusic, we view music moods as a type of experience that music generates and focus on music moods as a phenotype in studying styles and modes. We explore the role of root concepts in cultural evolution by focusing on their capacity to generate new combinations with other elements and examine how creators use root concepts jointly with other elements. Results suggest that designer music may be useful in the treatment of tension, mental distraction, and negative moods.This study proposes the notion of “root concepts” in cultural production, defined as a novel style and mode that a creator expresses at the initial field development phase, and that has a great influence on subsequent creators. Designer music was most effective in increasing positive feelings and decreasing negative feelings. Feeling shifts among subjects were observed with all types of music. The results for New Age and classical music were mixed. In contrast, after listening to the designer music (music designed to have specific effects on the listener), significant increases in caring, relaxation, mental clarity, and vigor were measured significant decreases were found in hostility, fatigue, sadness, and tension. With grunge rock music, significant increases were found in hostility, sadness, tension, and fatigue, and significant reductions were observed in caring, relaxation, mental clarity, and vigor. A total of 144 subjects completed a psychological profile before and after listening for 15 minutes to four types of music (grunge rock, classical, New Age, and designer). This study investigated the impact of different types of music on tension, mood, and mental clarity. ![]()
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