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Titolo:
DI-receptor dependent synaptic potentiation in the basal ganglia of quail chicks
Autore:
Matsushima, T; Izawa, EI; Yanagihara, S;
Indirizzi:
Nagoya Univ, Grad Sch Bioagr Sci, Lab Anim Informat Biol, Neuroethol Grp,Chikusa Ku, Nagoya, Aichi 4648601, Japan Nagoya Univ Nagoya Aichi Japan 4648601 a Ku, Nagoya, Aichi 4648601, Japan
Titolo Testata:
NEUROREPORT
fascicolo: 13, volume: 12, anno: 2001,
pagine: 2831 - 2837
SICI:
0959-4965(20010917)12:13<2831:DDSPIT>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPAMINE; STRIATUM; TRANSMISSION; DEPRESSION; SYNAPSES; MEMORY; D1;
Keywords:
bird; caudate nucleus; dopamine receptors; learning; lobus parolfactorius; long-term potentiation; neostriatum; NMDA receptor; passive avoidance task; reinforcement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Matsushima, T Nagoya Univ, Grad Sch Bioagr Sci, Lab Anim Informat Biol, Neuroethol Grp,Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan Nagoya UnivFuro Cho Nagoya Aichi Japan 4648601 48601, Japan
Citazione:
T. Matsushima et al., "DI-receptor dependent synaptic potentiation in the basal ganglia of quail chicks", NEUROREPORT, 12(13), 2001, pp. 2831-2837

Abstract

Properties of local synapses were analyzed in lobus parolfactorius (LPO; avian homologue of caudate-nucleus) of quail chicks by using slice preparations in vitro. Field-potential extracellular and whole-cell intracellular recordings revealed excitatory synaptic inputs converging from dorsal and ventral regions within LPO. With exogenous dopamine (100 muM) in the perfusate, synchronized conditioning stimulation induced biased changes in the dorsal and the ventral inputs; potentiation in the dorsal input and depression in the ventral input in average. On the other hand, de-synchronized conditioning failed to induce such biased changes, although the differences were not statistically significant. SCH-23390 (3 muM) blocked the dorsal potentiation, while AP-5 (100 muM) tended to block both of these changes. The plastic nature may underlie the memory formation in appetitive/aversive learning tasks. NeuroReport 12:2831-2837 (C) 2001 Lippincott Williams & Wilkins.

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Documento generato il 19/09/20 alle ore 20:46:20