Nizhny Novgorod, Russia
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Neurophysiological correlates of musical creativity: The example of improvisation
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Since the turn of this century, a substantial body of research has been published on the neuroscience of creativity. Now, it is necessary to study the neurophysiological correlates in true-to-life, professionally specific situations. The aim of our empirical research was to study the neurophysiological correlates of musical improvisation, a spontaneous creative activity. The participants were 136 right-handed practicing musicians aged 19 to 36 (102 males and 34 females), divided into two groups—professionals (56 people) and amateurs (80 people). EEG signals were recorded in a resting state (eyes closed) and during three types of internal musical activity (perceiving, mentally reproducing, and mentally improvising) from 21 scalp electrodes according to the International 10-20 System. For statistical analysis, we used ANOVA and post hoc analysis. For the main neurophysiological correlates of musical creativity, we revealed higher values of EEG spectral power in the delta band and the dominance of long-distance functional cortical connections in the high-frequency bands. Variable neurophysiological correlates were differentiated according to emotions and the professional level of the musicians. The distinguishing EEG pattern in the professional musicians during improvisation was the predominant activation of the left- hemisphere cortical regions simultaneously with high interhemispheric integration in the high-frequency band along the “creativity axis.” The revealed neurophysiological correlates of musical creativity during improvisation included basic and variable components and were characterized by a specific frequency-spatial organization of bioelectric cortical activity in the musicians.
DOI: 10.11621/pir.2015.0307
Keywords: musical creativity, improvisation, brain cortex, EEG, spectral power, co¬herence, frequency band
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Personal characteristics of effective managers in organizational cultures of different types
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Since the 1990s Russian enterprises have been experiencing difficulties in transitioning to the market-innovative model of development. In the context of the current variability of management paradigms, we had an opportunity to study the internal and external regulators of organizational changes that are typical for a transitioning economy. Organizational culture (ОС) was studied as an external factor, while the personal traits of middle managers were viewed as internal factors because these managers are the agents for values and for behavior models, from corporate directives to “front-desk’ personnel. The goal of this theoretical and empirical study was to determine the personality traits of middle managers who were deemed effective by top management in companies transitioning to the market-innovative model of development in the context of different types of OCs.
During the preliminary stage, we conducted a comparative analysis of the requirements for the personal traits of middle managers who are working in stable conditions as well as in conditions of transfer to the market-innovative model of development, and we selected the relevant methods of empirical research. During the first stage of the empirical part of our research we defined a group of four enterprises with OCs of different types, identified their effective mid-level managers based on expert evaluations by the top leadership, and formed test groups. During the second stage we studied the personal characteristics of these managers.
We determined that the personality traits of managers deemed effective by their leaders form integral complexes, which in turn correlate in a certain way with the type of ОС of an enterprise. We identified four models of an effective manager: Mentor, Dictator, Innovator, and Businessman; these managers have varying degrees of work productivity, value priorities in the development of ОС, personal self-concepts, organizational leadership skills, and types of decision-making. It has been demonstrated that in the evaluation of the effectiveness of a manager of an enterprise, the correspondence of his/her personal traits to the characteristics of the ОС prevailing in the company is a more important factor than his/her agreement with the long-term goals of the company and, therefore, with the more promising type of ОС. This phenomenon opens a way to utilize such functions of ОС as internal integration but prevents external adaptation, which in turn becomes a serious psychological obstacle in the development of an enterprise.
The ОС of an enterprise has a powerful potential to attract employees with certain sets of psychological traits. Important tasks for the psychological support of the organizational development of an enterprise could be the development of a criteria database for the evaluation of managers and the development of a management talent pool based on the market-innovative vector of development of an enterprise with relevant changes in the ОС.DOI: 10.11621/pir.2015.0306
Keywords: transition economy, innovations, psychological regulation of activities, orga¬nizational culture, values, managers’ psychological characteristics
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