Objective Fine motor skills, such as singing or playing an instrument, require precise neural control of the musculature that executes the task. This high level of precision can only be acquired through extensive practice, while both the brain and the peripheral musculature adapt to the task. Although the level of motor performance decreases when a skill is not used, once acquired, previous levels of performance can be regained quickly with only little practice, a phenomenon called ‘savings’. It is unclear, however, what mechanisms underlie savings, and where the information is stored that enables the quick retrieval of previously learned skills.To investigate these questions we propose to use our recently developed model system that allows us to experimentally control the acquisition, discontinuation, and re-acquisition of vocal motor performance in songbirds. This novel model system provides us with an excellent opportunity to untangle the contributions of the central nervous system and the peripheral musculature involved in song production to the savings of vocal motor skills.Using in vivo two-photon microscopy, we will study dynamic changes in the dendritic arborization of motor neurons in the songbird brain during the development, discontinuation, and rapid retrieval of vocal motor performance. At these different stages of skill utilization we will also investigate structural changes to the vocal organ with in vivo x-ray microtomography (µCT) and quantify the mechanical performance of isolated muscle bundles in vitro afterwards. Together these approaches will demonstrate whether modifications to the brain, the vocal musculature, or both, contribute to the savings of vocal motor skills, and enhance our understanding of the neural and peripheral mechanisms that are responsible for memorization and recall of motor skills. Fields of science natural sciencesbiological sciencesneurobiologynatural sciencesphysical sciencesopticsmicroscopy Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2015-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Call for proposal H2020-MSCA-IF-2015 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator SYDDANSK UNIVERSITET Net EU contribution € 212 194,80 Address CAMPUSVEJ 55 5230 Odense M Denmark See on map Region Danmark Syddanmark Fyn Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 212 194,80
