Octopamine and Experience-Dependent Modulation of Aggression in Crickets
نویسندگان
چکیده
منابع مشابه
Octopamine and experience-dependent modulation of aggression in crickets.
Intraspecific aggression is influenced in numerous animal groups by the previous behavioral experiences of the competitors. The underlying mechanisms are, however, mostly obscure. We present evidence that a form of experience-dependent plasticity of aggression in crickets is mediated by octopamine, the invertebrate counterpart of noradrenaline. In a forced-fight paradigm, the experience of flyi...
متن کاملReleasing stimuli and aggression in crickets: octopamine promotes escalation and maintenance but not initiation
Biogenic amines have widespread effects on numerous behaviors, but their natural functions are often unclear. We investigated the role of octopamine (OA), the invertebrate analog of noradrenaline, on initiation and maintenance of aggression in male crickets of different social status. The key-releasing stimulus for aggression is antennal fencing between males, a behavior occurring naturally on ...
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Aggression is a behavioural strategy for securing resources (food, mates and territory) and its expression is strongly influenced by their presence and value. While it is known that resource holders are generally highly aggressive towards intruding consexuals and usually defeat them, the underlying neuronal mechanisms are not known. In a novel intruder-resident paradigm for field crickets (Gryl...
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The genetics and neurobiology of Drosophila aggression are still poorly understood. A new study using an automated method to analyze one component of male fly aggression has shown that the biogenic amine octopamine plays a role in the modulation of aggressive behavior.
متن کاملOctopamine in Male Aggression of Drosophila
BACKGROUND In mammals and humans, noradrenaline is a key modulator of aggression. Octopamine, a closely related biogenic amine, has been proposed to have a similar function in arthropods. However, the effect of octopamine on aggressive behavior is little understood. RESULTS An automated video analysis of aggression in male Drosophila has been developed, rendering aggression accessible to high...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2005
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.4258-04.2005