Descripción del proyecto
Los mecanismos neurobiológicos de la categorización del ritmo
Reconocer y seguir un patrón rítmico en la música puede parecer fácil, pero la variedad de ritmos lo hace una tarea compleja. Según la teoría de Darwin, el cerebro categoriza los patrones rítmicos mediante mecanismos subcorticales fijos. Sin embargo, investigaciones conductuales recientes sugieren que las redes corticales también pueden desempeñar un papel en el reconocimiento flexible y adaptable de patrones rítmicos. En el proyecto CATEGORHYTHM, financiado por las acciones Marie Skłodowska-Curie, se emplearán métodos innovadores y técnicas de neuroimagen de alta resolución para estudiar la contribución de distintas regiones cerebrales a la categorización del ritmo. También se investigarán los procesos neuronales de categorización en personas con dislexia evolutiva. El objetivo es proporcionar nuevos conocimientos sobre los mecanismos neurobiológicos de categorización del ritmo y su papel en los ritmos musicales y el desarrollo del lenguaje.
Objetivo
When we listen to music, recognizing a well-known rhythmic pattern and moving our body along seems like a natural and effortless task. Yet, these widespread human abilities are far from trivial, due to the sheer diversity and variability of possible rhythmic inputs that may stimulate our sensory organs. How does the brain categorize a particular sensory input as an instance of a particular rhythmic pattern? One view, which dates back to Darwin, is that rhythm categorization is driven by fixed mechanisms anchored in the ancient subcortical parts of the brain. However, recent behavioral research argues that categorical perception of rhythm is a complex flexible function, possibly relying on evolutionarily newer plastic cortical networks. The current project scrutinizes these views by combining an innovative methodological approach with high-resolution neuroimaging techniques (electroencephalography and magnetoencephalography). This novel approach will be used to unravel how different brain regions contribute to the transformation from faithful encoding of stimulus’ physical properties towards internal rhythmic categories. Moreover, neural categorization processes will be probed in participants with developmental dyslexia to assess their contribution to generalized rhythmic abilities, which are impaired in this population. The results are expected to provide key insights into the neurobiological mechanisms underlying perceptual categorization of rhythm, and their role in driving the universality, yet remarkable diversity of musical rhythms observed across cultures. Likewise, the outcomes of this project are expected to improve our understanding of the role of rhythm categorization processes in language development and its disorders, such as developmental dyslexia, with implications for the improvement of diagnostic and therapeutic tools.
Palabras clave
Programa(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régimen de financiación
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinador
20009 San Sebastian
España