APOMORPHINE-INDUCED PECKING IN PIGEONS
نویسندگان
چکیده
منابع مشابه
Nucleus basalis prosencephali, a substrate of apomorphine-induced pecking in pigeons.
Microinjections of the dopamine agonist apomorphine into the nucleus basalis prosencephali of pigeons elicit stereotyped pecking behaviour. Injections of 6-hydroxydopamine, a toxic dopamine antagonist, into the same nucleus impair stereotyped pecking induced by systemic apomorphine administration, but do not interfere with pecking in the normal feeding context.
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The role of the nucleus basalis prosencephali (Bas), a frontal forebrain structure peculiar to birds, in the control of forage pecking and apomorphine-induced pecking was investigated. In a quasi-natural grit-grain selection task bilateral coagulations of the Bas and the associated neostratum frontolaterale (Nfl) caused a marked fall in grain per peck uptake and a simultaneous increase in grit ...
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Dextromethorphan is an NMDA receptor antagonist in the glutamatergic system. Currently, there are some reports showing that the glutamatergic NMDA receptor mechanism stimulates dopamine release from several brain regions. This effect may in part modulate the stereotyped behaviors of dopaminergic system. The purpose of the present study was to determine the interaction between the blockade of NM...
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Repeated administration of apomorphine leads to a context-dependent pecking response sens iti zation . Previously sens itized pigeons (Co /llmba /ivia) challenged with saline in the same context show a conditioned response (CR) . The authors studied the effects of intra striatal inj ections of the dopamine (D, ) antagonist SCH-23390 on both the sensiti zed response and the C R. When coadministc...
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The production and coordination of rhythmic activities in birds is seldom investigated. Here we describe the pecking and breathing rhythms of pigeons under different conditions. When feeding from a heap of small grains, hungry pigeons pecked at regular intervals of about 0.3 s. The pecking rhythm was slightly slo,":,er in the afternoon. The pecking rhythm induced by the dopaminergic drug apomor...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology and Chemotherapy
سال: 1960
ISSN: 0366-0826
DOI: 10.1111/j.1476-5381.1960.tb01246.x