Name: appetitive associative olfactory learning in drosophila larvae
Uploaded: 2013-02-18T12:00:00
Description: Watch this Scientific Journal Video about Appetitive Associative Olfactory Learning in Drosophila Larvae at JoVE.com

Vogliamo in particolare ringraziare i membri del laboratorio di Gerber per le istruzioni tecniche per la loro impostazione sperimentale e commenti sul manoscritto. Ringraziamo anche Lyubov Pankevych per la cura della mosca e la manutenzione del parco selvaggio Cantoni tipo. Questo lavoro è supportato dalla concessione DFG TH1584/1-1, la concessione SNF 31003A_132812 / 1 e la Zukunftskolleg dell&#39;Università di Costanza (tutti a AST).

1. Preparazione <ol><li> Drosophila wild-type larve vengono sollevate a 25 ° C e 60% ​​-80% di umidità in un ciclo di 14/10 chiaro / scuro. Per controllare l&#39;età esatta delle larve sempre 20 femmine sono messi con 10 maschi in un flaconcino (6 cm di altezza e 2,5 cm di diametro) che include circa 6 ml di cibo mosca standard. Le mosche possono deporre le uova per 12 ore e sono trasferiti in un nuovo flaconcino il secondo giorno. 5-6 giorni dopo la deposizione delle uova larve raggiungere l&#39;alime...

<ol>
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<html> La configurazione descritta in larve di Drosophila permette lo studio di apprendimento associativo olfattivo all&#39;interno di un cervello relativamente elementare. L&#39;approccio è semplice, economico, facile da stabilire in un laboratorio e non richiede attrezzature ad alta tecnologia 9. Vi presentiamo una versione dell&#39;esperimento, per studiare appetitiva apprendimento associativo rafforzato dalla ricompensa fruttosio 11. La configurazione descritta si basa su una serie di ...

<table border="1"><tbody><tr><td> Nome del reagente </td><td> Azienda </td><td> Numero di catalogo </td><td> Numero CAS </td></tr><tr><td> Fruttosio </td><td> Sigma </td><td> 47740 </td><td> 57-48-7 </td></tr><tr><td> NaCl </td><td> Fluka </td><td> 71350 </td><td> 7647-14-5 </td></tr><tr><td> Agarosio </td><td> Sigma </td><td> A5093 </td><td> 9012-36-6 </td></tr><tr><td> 1-ottanolo </td><td> Sigma </td><td> 12012 </td><td> 111-87-5 </td></tr><tr><td> Amilacetato </td><td> Sigma </td><td> 46022 </td><td> 628-63-7 </td></tr><tr><td> Olio di paraffina </td><td> Sigma </td><td> 18512 </td><td> 8012-95-1 </td></tr></tbody></table>

appetitive associative olfactory learning in drosophila larvae

Nel seguito sono descritti i dettagli metodologici appetitiva apprendimento associativo olfattivo nelle larve Drosophila. La configurazione, in combinazione con interferenza genetica, fornisce una maniglia per analizzare i fondamenti neuronali e molecolari di apprendimento specificamente associativo in un cervello semplice larvale. I microrganismi possono utilizzare l&#39;esperienza passata per regolare il comportamento presente. Tale acquisizione del potenziale comportamentale può essere definito come l&#39;apprendimento, e le basi fisiche di questi potenziali come tracce di memoria 1-4. I neuroscienziati cercare di capire come questi processi sono organizzati in termini di cambiamenti molecolari e neuronali nel cervello, utilizzando una varietà di metodi in organismi modello che vanno dagli insetti ai vertebrati 5,6. Per tali sforzi, è utile usare sistemi di modelli che sono semplici e accessibili sperimentalmente. La larva Drosophila è rivelato soddisfare queste richieste basate sula disponibilità di solidi saggi comportamentali, l&#39;esistenza di una varietà di tecniche transgeniche e l&#39;organizzazione elementare del sistema nervoso che comprende solo circa 10.000 neuroni (anche se con qualche concessione: limitazioni cognitive, poche opzioni comportamentali, e la ricchezza di esperienza discutibile) 7-10 . Larve di Drosophila possono formare associazioni tra odori e appetitiva rinforzo gustativa come lo zucchero 11-14. In un saggio standard, stabilita nel laboratorio di Gerber B., gli animali ricevono due odore formazione reciproca: Un primo gruppo di larve è esposto ad un odore Un insieme ad un rinforzo gustativo (ricompensa zucchero) e viene successivamente esposto ad un odore B senza armatura 9. Nel frattempo, un secondo gruppo di larve riceve una formazione reciproca, mentre vivendo un odore senza armatura e, successivamente, di essere esposti a B odore con rinforzo (premio zucchero). In seguito entrambi i gruppi sono testa per la loro preferenza tra i due odori. Preferenze relativamente più elevati per l&#39;odore premiato riflettere apprendimento associativo - presentato come un indice di prestazione (PI). La conclusione in merito alla natura associativa dell&#39;indice di prestazione è convincente, perché a parte la contingenza tra odori e sostanze sapide, altri parametri, come ad esempio l&#39;odore e l&#39;esposizione ricompensa, passare del tempo e la gestione non differiscono tra i due gruppi di 9.

La figura 1A mostra una panoramica delle procedure sperimentali per l&#39;apprendimento olfattivo larvale associativo. Accoppiando uno dei due odori presentati con un premio larve zucchero acquisire il potenziale comportamento di esprimere una risposta attraente verso l&#39;odore ricompensati rispetto al unrewarded odore. Due gruppi di larve sono sempre formati da una associazione il rinforzo con l&#39;odore PTOM o AM. L&#39;indice di prestazioni (PI) misura la funzione associativa come la differenza di...

Watch this Scientific Journal Video about Appetitive Associative Olfactory Learning in Drosophila Larvae at JoVE.com

Appetitive Associative Olfactory Learning in Drosophila Larvae

Larve di Drosophila sono in grado di associare stimoli odore con la ricompensa gustativa. Qui descriviamo un semplice paradigma comportamentale che permette l&#39;analisi di appetitivo apprendimento associativo olfattivo.

Appetitivo apprendimento associativo olfattiva in<em&gt; Drosophila</em&gt; Le larve

In the following we describe the methodological  details of appetitive associative olfactory learning in Drosophila larvae. The setup, in combination with ...

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Neuroscience

Appetitive Associative Olfactory Learning in Drosophila Larvae

C. elegans Positive Butanone Learning, Short-term, and Long-term Associative Memory Assays

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The memory of experiences and learned information is critical for organisms to make choices that aid their survival. C. elegans navigates its environment ...

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Visualization of Proprioceptors in Drosophila Larvae and Pupae

Visualization of Proprioceptors in Drosophila Larvae and Pupae

Visualizzazione dei Propriorecettori in<em&gt; Drosophila</em&gt; Larve e pupe

Proprioception is the ability to sense the motion, or position, of body parts by responding to stimuli arising within the body. In fruitflies and other ...

Drosophila Adult Olfactory Shock Learning

Drosophila Adult Olfactory Shock Learning

Drosophila adulti olfattiva Shock Learning

Drosophila have been used in classical conditioning experiments for over 40 years, thus greatly facilitating our understanding of memory, including the ...

Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae

Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae

Luce Preferenza Assay per studiare Innata e circadiano Photobehavior Regolamentato<em&gt; Drosophila</em&gt; Larve

Light acts as environmental signal to control animal behavior at various levels. The Drosophila larval nervous system is used as a unique model to answer ...

Whole Mount Immunolabeling of Olfactory Receptor Neurons in the Drosophila Antenna

Whole Mount Immunolabeling of Olfactory Receptor Neurons in the Drosophila Antenna

Tutta Monte immunomarcatura di recettore olfattivo neuroni nel<em&gt; Drosophila</em&gt; Antenna

Odorant molecules bind to their target receptors in a precise and coordinated manner. Each receptor recognizes a specific signal and relays this ...

Electrophysiological Method for Recording Intracellular Voltage Responses of Drosophila Photoreceptors and Interneurons to Light Stimuli In Vivo

Electrophysiological Method for Recording Intracellular Voltage Responses of Drosophila Photoreceptors and Interneurons to Light Stimuli In Vivo

Metodo elettrofisiologiche per la registrazione intracellulare di tensione Risposte di<em&gt; Drosophila</em&gt; Fotorecettori e Interneuroni a luce stimoli<em&gt; In Vivo</em

Voltage responses of insect photoreceptors and visual interneurons can be accurately recorded with conventional sharp microelectrodes. The method ...

Novel Assay for Cold Nociception in Drosophila Larvae

Novel Assay for Cold Nociception in Drosophila Larvae

Nuovo metodo di analisi per Cold nocicezione in<em&gt; Drosophila</em&gt; Le larve

How organisms sense and respond to noxious temperatures is still poorly understood. Further, the mechanisms underlying sensitization of the sensory ...

An Objective and Reproducible Test of Olfactory Learning and Discrimination in Mice

Una prova oggettiva e riproducibile di apprendimento olfattivo e discriminazione nei topi

Olfaction is the predominant sensory modality in mice and influences many important behaviors, including foraging, predator detection, mating, and ...