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Control motor cortical de la interacción vocal en ratones cantores neotrópicos
Daniel E Okobi1,2,3, Arkarup Banerjee1,2,3, Andrew M M Matheson1,3
1NYU Neuroscience Institute, New York University Langone Health, New York, NY 10016, USA.
Science (New York, N.Y.)
|March 2, 2019
Resumen
Los ratones machos que cantan ajustan rápidamente las vocalizaciones durante las interacciones sociales. La corteza motora controla con precisión el ritmo del canto, lo que permite una comunicación acústica compleja y el comportamiento social.
Área de la Ciencia:
- La neurociencia
- El comportamiento de los animales
- La bioacústica
Sus antecedentes:
- La comunicación acústica requiere un rápido control motor que se adapte a la entrada sensorial.
- Las transformaciones sensoriomotrices subyacentes a los comportamientos naturales complejos son poco conocidas.
Objetivo del estudio:
- Investigar los intercambios vocales y las transformaciones sensorimotrices en el ratón cantor de Alston (Scotinomys teguina).
- Determinar la base neuronal para la modulación vocal rápida durante las interacciones sociales.
Principales métodos:
- Comportamiento de canto observado en ratones machos cantantes durante las interacciones sociales.
- Usó experimentos de perturbación para sondear la función de la corteza motora orofacial.
- Analizó la producción vocal y el control motor en una escala de tiempo subsegundo.
Principales resultados:
- Los ratones machos que cantan modifican las vocalizaciones en tiempo real durante las interacciones sociales.
- Identificó una región de la corteza motora orofacial involucrada en el control vocal.
- Control jerárquico demostrado donde la corteza motora influye en el ritmo de canto momento a momento.
Conclusiones:
- La corteza motora juega un papel crítico en el ritmo momento a momento de las vocalizaciones.
- Esto proporciona un marco a nivel de sistemas para comprender las transformaciones sensorimotrices en la comunicación acústica social.
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