Project description DEENESFRITPL Shedding light on how brain areas contribute to learning and memory A crucial new phase in learning and memory research involves examining how long-range interactions between different brain regions aid and engage with local plasticity to allow functional circuit plasticity. The neocortex’s layer 1 (L1) is key to learning. Zona incerta (ZI) – a region in the subthalamus – sends long-range inhibitory (LRI) projections to L1 of the auditory cortex (ACx). It is not known whether and how LRI projections contribute to memory encoding mechanisms in neocortical circuits. The EU-funded incerta2cortex project will investigate how LRI projections from the ZI to L1 ACx assist learning and memory. This will provide important clues about how long-range interactions between brain areas benefit learning and memory. Show the project objective Hide the project objective Objective The ability to learn from experience and remember one’s past is one of the most fundamental and fascinating functions of the brain that is also a central element of individual and collective human identity. A mechanistic understanding of memory has implications reaching from treatment of memory disorders to artificial intelligence and efficient hard- and software design. While by now we have a tolerable understanding of how local circuits implement the plastic changes that underlie learning and memory, brain areas do not function in isolation. In fact, it is precisely the extreme degree of neuronal interconnectivity that makes brain research such a fascinating challenge. Therefore, the critical next step in learning and memory research is to dissect how long-range interactions between different brain areas contribute to, and interact with, local plasticity to enable functional circuit plasticity. Neocortical layer 1 (L1) receives diverse long-range excitatory inputs, many of which are known to be important for learning. However, my host lab has recently found that the zona incerta (ZI) – a subthalamic nucleus – sends long-range inhibitory (LRI) projections to L1 of the auditory cortex (ACx). Whether and how LRI contributes to memory encoding mechanisms in neocortical circuits is completely unknown. Here I outline a strategy to dissect how LRI projections from the ZI to L1 ACx contribute to learning and memory, using a combination of cutting-edge in vivo imaging and recording techniques in conjunction with associative fear conditioning, optogenetic manipulations, viral tracing, genetic markers and slice recordings in mice. This multidisciplinary investigation will reveal important insights into how long-range interactions between brain areas contribute to learning and memory. Moreover, successful completion of this project, and rigorous training in other aspects of academic life, will provide the ideal stepping stone for my transition to scientific independence. Fields of science natural sciencescomputer and information sciencesartificial intelligencenatural sciencescomputer and information sciencessoftwarenatural sciencesbiological sciencesneurobiologycognitive neuroscience Keywords zona incerta long range inhibition auditory cortex fear memory extinction memory neocortical circuits behavior layer 1 interneuron types dendritic inhibition genetic markers plasticity 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-2018 - Individual Fellowships Call for proposal H2020-MSCA-IF-2018 See other projects for this call Funding Scheme MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinator MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV Net EU contribution € 174 806,40 Address HOFGARTENSTRASSE 8 80539 Munchen Germany See on map Region Bayern Oberbayern München, Kreisfreie Stadt Activity type Research Organisations 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 € 174 806,40