{"id":161376,"global_id":"www.bordeaux-neurocampus.fr\/en\/?id=161376","global_id_lineage":["www.bordeaux-neurocampus.fr\/en\/?id=161376"],"author":"325","status":"publish","date":"2023-10-04 09:37:58","date_utc":"2023-10-04 07:37:58","modified":"2024-05-21 11:09:44","modified_utc":"2024-05-21 09:09:44","url":"https:\/\/www.bordeaux-neurocampus.fr\/en\/event\/phd-seminar-daniela-vallentin\/","rest_url":"https:\/\/www.bordeaux-neurocampus.fr\/en\/wp-json\/tribe\/events\/v1\/events\/161376","title":"Monthly conference (PhD Seminar) – Daniela Vallentin","description":"

Venue : Centre Broca<\/strong><\/p>\n

\n

Daniela Vallentin\"\"<\/span>
\n<\/strong>Max Plack Institute, Starnberg, Germany<\/p>\n

Invited by Eduarda Centeno (Leblois and Mallet’s team – IMN)<\/p>\n

\n

Title<\/h3>\n

Neural mechanisms of vocal learning and production in songbirds<\/span><\/span><\/p>\n

Abstract<\/h3>\n

During conversations we rapidly switch between listening and speaking which often<\/span><\/span><\/span> requires withholding or delaying our speech in order to hear others and avoid overlap.<\/span><\/span><\/span> Th<\/span><\/span>e<\/span><\/span><\/span> ability of<\/span><\/span> vocal turn-taking is exhibited by non-linguistic species as well, however<\/span><\/span><\/span> the neural circuit mechanisms that enable us to regulate the precise timing of our<\/span><\/span><\/span> vocalizations during interactions are<\/span><\/span> largely<\/span><\/span> unknown.<\/span><\/span> We address this issue by<\/span><\/span><\/span> studying<\/span> zebra<\/span> finches<\/span> that<\/span> coordinate<\/span> their<\/span> calls<\/span> during<\/span> vocal<\/span> interactions.<\/span> By<\/span><\/span><\/span> performing intracellular recordings and pharmacological manipulation in the premotor<\/span><\/span><\/span> nucleus HVC we found that inhibition regulates the coordination of social contact calls.<\/span><\/span><\/span> To further study more complex vocal interactions we also study the singing behavior<\/span><\/span><\/span> of nightingales. Male nightingales learn over 100 different songs which are used in<\/span><\/span><\/span> order to attract mates or defend territories. We investigated auditory-induced vocal<\/span><\/span><\/span> plasticity in interacting nightingales and discovered that nightingales rapidly and<\/span><\/span><\/span> accurately<\/span> imitated<\/span> the<\/span> pitch<\/span> of<\/span> pitch-controlled<\/span> whistle<\/span> playbacks.<\/span> This<\/span> finding<\/span><\/span><\/span> highlights their capability of directly transforming an auditory input to a matching vocal<\/span><\/span><\/span> response.<\/span><\/span><\/span>
Songbirds learn their vocalization by listening to and imitating the song of their tutor<\/span><\/span><\/span> during a critical period early in life. Once the bird reaches adulthood this song remains<\/span><\/span><\/span> stable. We discovered that inhibition within the premotor area HVC plays a major role<\/span><\/span><\/span> in closing this critical period by suppressing the influence of the tutor once song<\/span><\/span><\/span> proficiency has been achieved. We then developed a cell-type specific viral strategy<\/span><\/span><\/span> to target inhibitory neurons in adult zebra finches and were able to re-open the critical<\/span><\/span><\/span> period by teaching an adult zebra finch novel song elements. This finding might have<\/span><\/span><\/span> important implications to understand and expand motor skill learning capabilities or <\/span><\/span>improve sensory and motor recovery after injury.
\n<\/span><\/span><\/p>\n

Key Publications<\/h3>\n

Daniela Vallentin,<\/span> Georg Kosche,<\/span> Dina Lipkind,<\/span> Michael A. Long<\/span> – Inhibition protects acquired song <\/span>segments during vocal learning in <\/span>zebra finches. Sciencesmag.org. 2016. <\/span><\/p>\n

Jonathan I. Benichov & Daniela Vallentin – Inhibition within a premotor circuit controls the <\/span>timing of vocal turn-taking in zebra<\/span> fi<\/span>nches. Nature communication. 2020.
\n<\/span><\/p>\n

Giacomo Costalunga, Carolina Sa \u0301 nchez Carpena, Susanne Seltmann, Jonathan I. Benichov, Daniela VallentinWild nightingales flexibly match whistle pitch in <\/span>real time. 2023.
\n<\/span><\/p>\n

Wanna meet the speaker?<\/h3>\n

You are a PI? Write to Julia Goncalves<\/a> who will organize the schedule of the speaker.<\/p>\n

You are a PhD student? You can share some pizza after the talk. An email is sent 10 days before… don’t miss it!<\/p>\n

\n

\"\"\"\"PhD seminars are organized by the NBA, Bordeaux Neurocampus, and the Bordeaux Neurocampus Graduate Program.<\/em><\/p>\n

 <\/p>","excerpt":"

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