CRAYFISH STATUS AFFECTS STEREOTYPICAL BEHAVIOUR
نویسندگان
چکیده
منابع مشابه
Extrinsic modulation of crayfish escape behaviour.
Extrinsic systems were shown to control the excitability of the neurones which mediate tail-flip escape in the crayfish. Restraint suppresses the escape mediated by giant fibres and some, but not all, categories of non-giant mediated escape; autotomy of claws increases the excitability of non-giant mediated escape without affecting the lateral giant reflex. The effects of restraint on the later...
متن کاملThe organization of escape behaviour in the crayfish.
Invertebrate escape reflexes have long been favoured preparations for investigating neuronal substrates of behaviour. The large size of many of their component neurones make them accessible to current micro-electrode techniques, and selection pressures for rapidity of response have probably caused them to evolve in the direction of the maximal neurological simplicity consistent with their funct...
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Social interactions leading to dominance hierarchies often elicit psychological disorders in mammals including harassment and anxiety. Here, we demonstrate that this sequence also occurs in an invertebrate, the crayfish Procambarus clarkii. When placed in the restricted space of an aquarium, crayfish dyads generally fight until one of the opponents suddenly escapes, thereafter clearly expressin...
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1. When the crayfish Procambarus is rolled with legs not upon a substratum, uropod opener muscles on the lifted side are activated in co-contraction whereas antagonistic closer muscles on the same side are all relaxed simultaneously. The closers are activated and the openers are relaxed on the lowered side. 2. This reciprocal pattern is also observed in the motor neurone activity: the contracti...
متن کاملSensory processing and stereotypical and repetitive behaviour in children with autism and intellectual disability.
BACKGROUND Sensory processing disorders have been linked to stereotypical behaviours in children with intellectual disability (ID) and autism spectrum disorders (ASD) and to anxiety in children with ASD. In earlier phases of this study with the same participants, we found that those with both ASD and ID were more motivated than those with ID alone to engage in stereotypical behaviour to allevia...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2011
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.062679