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VocalBrain

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Whole brain neural dynamics of vocal auditory interactions in the sound producin...

Whole brain neural dynamics of vocal auditory interactions in the sound producing transparent vertebrate Danionella translucida Many animal species generate acoustic signals for social communication and are faced with the challenge to distinguish external from self-generated sounds. How does the brain accomplish this when all sounds are coming in through t... ver más

31/08/2023

CHARITE UNIVERSIT...

163K€

Presupuesto del proyecto: 163K€

Líder del proyecto

CHARITE UNIVERSITAETSMEDIZIN BERLIN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2023-08-31

MSCA-IF-2020: Individual Fellowships

I+D

Cerrada hace 4 años

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

CHARITE UNIVERSITAETSMEDIZI...

162.81K€ | Lider

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Duración del proyecto: 28 meses Fecha Inicio: 2021-04-20
Fecha Fin: 2023-08-31

Líder del proyecto

CHARITE UNIVERSITAETSMEDIZIN BERLIN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 163K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Many animal species generate acoustic signals for social communication and are faced with the challenge to distinguish external from self-generated sounds. How does the brain accomplish this when all sounds are coming in through the ear? It requires that self- generated and external sounds are separated at some point in the central auditory system. Copies of motor commands indicate to auditory brain areas when self-generated sounds are expected to arrive. This feedforward signaling suppresses neural responses in primary auditory nuclei, as well as the auditory cortex. Neurons that are activated with self- vocalization are also found in the auditory cortex. Yet, how the signal arrives there and where along the auditory processing pathway neural encoding of self-generated and external sounds diverge, is largely unknown. These are challenging questions to address because single-cell activity needs to be recorded simultaneously across several distant brain regions. This is currently only possible with fluorescent imaging techniques, but adult vertebrate brain tissue is too opaque for large-scale optical access. Danionella translucida (DT) is a transparent, miniature fish that vocalizes in social contexts and is therefore uniquely suitable for studying whole-brain activity of auditory processing during self- vocalization. Here I propose to generate an unbiased, whole-brain map of neural activity correlated with vocal self-representation and its cancellation. For this, I will establish stimulations of fictive vocalizations in DT and combine these with auditory playback while performing whole-brain calcium imaging. This data will offer unprecedented insights into vocal-auditory interactions across a vertebrate brain.

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