Summary: Studying creativity as it happens is difficult, but musical improvisation provides a rare, observable window into spontaneous idea generation. In a new brain-imaging study, researchers tracked how 16 experienced jazz pianists’ neural networks reorganized while they played a familiar tune from memory, improvised around its melody, or freely improvised over its chord changes.
The study shows that varying degrees of creative freedom produce distinct patterns of brain network coupling: more constrained improvisation engages evaluative and executive processes, while freer improvisation amplifies auditory–motor coordination and salience-related, pleasure-linked activity.
These results reveal how the brain shifts dynamically between functional networks to support real-time musical creativity and offer a scalable framework for probing the neural basis of spontaneous creative behavior.
Key Facts
- Structured vs. Free Creativity: Constrained improvisation recruits executive and evaluative networks, whereas open-ended improvisation increases activity in auditory, motor, and salience systems.
- Dynamic Brain Substates: Different improvisational demands produce recurring network configurations tied to planning, perception, and spontaneous idea generation.
- Real-Time Reconfiguration: The brain continuously shifts network engagement based on the musician’s degree of creative freedom.
Source: BIAL Foundation
Defining creativity: Creativity is commonly defined as the ability to produce ideas or products that are both novel and appropriate to their context. Although it has been studied for decades, capturing creativity in action remains challenging because it often unfolds rapidly and internally.
Musical improvisation sits at the intersection of spontaneity and structure, making it an ideal model to observe how the brain generates original, context-appropriate material in real time.
An international team investigated how the brains of 16 skilled jazz pianists responded while they performed the standard “Days of Wine and Roses” under three conditions: playing the melody from memory (byHeart), improvising guided by the melody (iMelody), and freely improvising over the chord changes (iFreely).
Published in the Annals of the New York Academy of Sciences, the article “Creativity in Music: The Brain Dynamics of Jazz Improvisation” reports that the researchers combined task-based functional magnetic resonance imaging (fMRI) with Leading Eigenvector Dynamics Analysis (LEiDA) to map how brain networks reorganize into distinct substates over time.
Conducted at the Center for Music in the Brain, Aarhus University, Denmark, and coordinated by Henrique Fernandes (Aarhus University/The Royal Academy of Music) under the supervision of Peter Vuust, the project found that both improvisation conditions produced increased activation in auditory, motor, and salience networks—systems central to musical perception, execution, and the experience of reward.
By contrast, networks typically associated with internal thought, evaluation, and decision-making—such as the Default Mode Network and the Executive Control Network—were differentially engaged depending on improvisational freedom. In particular, the most open-ended condition (iFreely) showed greater coactivation of default mode, executive control, and language networks in a specific substate, suggesting involvement in complex planning and high-level decision processes.
“Increasing improvisational freedom corresponds to a shift in brain network engagement: constrained improvisation relies more on executive and evaluative processes, while freer expression favors auditory–motor coordination and salience-related activity,” explains project coordinator Henrique Fernandes, whose team includes collaborators from ICVS – Life and Health Sciences Research Institute, School of Medicine, University of Minho.
By identifying substates tied to different creative demands, the study advances understanding of how large-scale brain networks interact dynamically to enable spontaneous creativity and provides a reproducible method for future investigations into the neural architecture of creative behavior.
Funding: Supported by a Medical Research Council Studentship, La Caixa Foundation, Foundation for Science and Technology (Portugal), BIAL Foundation, Salling Foundation, and The Danish National Research Foundation (DNRF117).
Key Questions Answered:
A: It combines structure and spontaneity, so researchers can observe the generation and evaluation of new musical ideas in real time.
A: Auditory, motor, and salience networks show heightened engagement when musicians improvise freely, reflecting perception, motor execution, and reward processing.
A: Constrained improvisation more strongly recruits executive and evaluative networks involved in planning and controlled decision-making.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- The full journal paper was reviewed.
- Additional explanatory context was added by staff.
About this creativity and neuroplasticity research news
Author: Sandra Pinto
Source: BIAL Foundation
Contact: Sandra Pinto – BIAL Foundation
Image: The image is credited to Neuroscience News
Original Research: Open access.
“Creativity in Music: The Brain Dynamics of Jazz Improvisation” by Henrique Fernandes et al., Annals of the New York Academy of Sciences
Abstract
Creativity in Music: The Brain Dynamics of Jazz Improvisation
Jazz improvisation provides a controlled, ecologically valid framework for studying spontaneous creative behavior. This study examined the spatiotemporal neural dynamics when skilled musicians used different strategies to improvise on a jazz standard.
Sixteen skilled jazz pianists were scanned at rest and while performing “Days of Wine and Roses” under three conditions: (1) playing the melody from memory (byHeart); (2) improvising on the melody (iMelody); and (3) freely improvising on the chord changes (iFreely).
Behaviorally, greater improvisational freedom correlated with more notes played, higher melodic entropy, and lower pitch predictability. Using LEiDA to analyze fMRI data, researchers observed increased engagement of the brain’s reward system across task conditions compared to rest, including activity in the orbitofrontal cortex.
Improvisation conditions showed a higher probability of a brain state involving auditory and sensorimotor regions associated with musical performance and the right insula of the posterior salience network. The most open-ended condition (iFreely) exhibited more frequent occurrence of a substate combining default mode, executive control, and language networks—systems implicated in planning complex behavior, decision-making, and motor control—offering insight into neural signatures of creative thought.