Obiettivo Cortical operations are built up from states associated with distinct behaviour-dependent network activity patterns that subserve information aquisition, encoding, memory consolidation and retrieval. Thus, they can be considered as manifestations of different processing modes. Groups of modulatory, largely monoaminergic neurons located in subcortical nuclei innervating all forebrain areas are indispensable for the generation, stabilization and termination of cortical activity states. In recent years the concept of subcortical modulation has been expanded by the discovery of a fast type of modulatory action driving the rapid readjustment of cortical activity and associated behaviours. Thus, cortical networks are under the influence of a tonic, slow, as well as a phasic, rapid component of subcortical modulation that are acting in parallel. Results from our laboratory revealed that the median raphe (MR) nucleus, one of the main sources of serotonergic innervation of the limbic system , besides the non-synaptic diffuse action, also exerts a fast type of modulation via the selective innervation of cortical GABAergic interneurons. This selective effect on local inhibition may be ideal for the synchronous resetting of the target principal cell circuits, or for the continuous tuning of their activity. These discoveries, together with the methodological advances of recent years, enable us to map the neuronal network mechanisms behind transitions of brain states, as well as associated behaviours, induced by subcortical inputs. We will focus on the MR – limbic connection with the aim to unravel the physiological, pharmacological and anatomical features of MR neuronal assemblies, both the slow- and fast-acting, as well as the serotonergic and glutamatergic components (together with their cortical target circuits) that will have been shown - using optic stimulation of ChR2/eGFP virus-infected MR neurons - to evoke characteristic behaviours, such as anxiety and conditioned fear. Programma(i) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Argomento(i) ERC-AG-LS5 - ERC Advanced Grant - Neurosciences and neural disorders Invito a presentare proposte ERC-2011-ADG_20110310 Vedi altri progetti per questo bando Meccanismo di finanziamento ERC-AG - ERC Advanced Grant Istituzione ospitante HUN REN KISERLETI ORVOSTUDOMANYI KUTATOINTEZET Contributo UE € 2 700 000,00 Indirizzo SZIGONY UTCA 43 1083 Budapest Ungheria Mostra sulla mappa Regione Közép-Magyarország Budapest Budapest Tipo di attività Research Organisations Contatto amministrativo Ferenc Oberfrank (Dr.) Ricercatore principale Tamás Freund (Prof.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato Beneficiari (1) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto HUN REN KISERLETI ORVOSTUDOMANYI KUTATOINTEZET Ungheria Contributo UE € 2 700 000,00 Indirizzo SZIGONY UTCA 43 1083 Budapest Mostra sulla mappa Regione Közép-Magyarország Budapest Budapest Tipo di attività Research Organisations Contatto amministrativo Ferenc Oberfrank (Dr.) Ricercatore principale Tamás Freund (Prof.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato