Objective Understanding how neural activity corresponds to visual perception has been a milestone question in neuroscience research. Traditionally this question has been addressed using a ‘correlative’ approach, i.e. by correlating neural activity with different perceptual states or different sensory conditions. Although many studies have shed light on how perception corresponds to neural activity, a causal relationship between the occurrence of particular neural events and the perception of sensory stimuli has yet to be established.In this project we aim to answer this question by using recently developed genetic tools for remote control of neuronal firing that now permit the detailed investigation of how neural activity influences behavior. Specifically, we propose to use two-photon calcium imaging to recognize single neurons with particular functional properties in mouse visual cortex and accurately identify their location within the network. Subsequently, we will use this information to transfect these neurons with channelrhodopsin-2 (Chr2) using single cell electroporation. Chr2 is a light gated ion channel, which enables precise triggering of action potential firing by flashes of blue light. We will then test the influence of induced action potentials in this functionally defined subset of neurons on visual detection performance of mice. This approach will enable us to determine how many and which neurons are important for visual performance and assess their contribution to visual perception. Fields of science natural sciencesbiological sciencesneurobiologynatural scienceschemical sciencesinorganic chemistryalkaline earth metalsnatural scienceschemical scienceselectrochemistrybioelectrochemistryelectroporation Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2010-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Call for proposal FP7-PEOPLE-2010-IEF See other projects for this call Funding Scheme MC-IEF - Intra-European Fellowships (IEF) Coordinator UCL Elizabeth Garrett Anderson Institute for Women’s Health Address Gower street WC1E 6BT London United Kingdom See on map Region London Inner London — West Camden and City of London Activity type Higher or Secondary Education Establishments Administrative Contact Greta Borg-Carbott (Ms.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
