FAST

Fiber optic activation of serotonergic terminals during olfactory discrimination

Coordinatore	FUNDACAO CALOUSTE GULBENKIAN    more  Organization address address: AVENIDA DE BERNA 45A city: LISBOA postcode: 1000 contact info Titolo: Dr. Nome: Zachary Cognome: Mainen Email: send email Telefono: -214464182 Fax: -214407619
Nazionalità Coordinatore	Portugal [PT]
Totale costo	92˙077 €
EC contributo	92˙077 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2007-2-1-IEF
Funding Scheme	MC-IEF
Anno di inizio	2008
Periodo (anno-mese-giorno)	2008-10-16   -   2010-10-15

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	FUNDACAO CALOUSTE GULBENKIAN  Organization address address: AVENIDA DE BERNA 45A city: LISBOA postcode: 1000 contact info Titolo: Dr. Nome: Zachary Cognome: Mainen Email: send email Telefono: -214464182 Fax: -214407619	PT (LISBOA)	coordinator	0.00

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 Obiettivo del progetto (Objective)

'In the central nervous system, 5-hydroxytryptamine (5-HT, or serotonin) acts as a neuromodulator and is synthetized by a specific population of neurons. 5-HT is released in nearly all subdivisions of the CNS and is involved in a wide array of brain functions as well as in several disorders. Although current hypotheses regarding the role of central 5-HT remain wide-ranging, a prominent view has progressively emerged from previous studies. A primary function of 5-HT might be to dampen sensory information processing while facilitating motor output. This 'sensorimotor gating' hypothesis is supported by indirect evidence and has never been tested directly. This proposal aims at investigating the influence of 5-HT on olfactory performance. By using mice expressing a recently developed light-gated cation channel (Channelrhodopsin-2) in serotonergic neurons, we will be able to excite serotonergic afferents to the olfactory bulb through a fiber optic interface. Using this innovative method, we will interfere with the native modulation pattern of these afferents during olfactory discrimination. The effects of this manipulation will be assessed directly at the behavioral level. This novel experimental paradigm offers tremendous improvements compared to previous ones and is expected to provide unprecedented insights into the role of central 5-HT in sensory processing.'