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The organization of escape behaviour in the crayfish.
1. Examination of escape behaviour in freely moving animals with chronically implanted nerve cord electrodes has clarified the normal function of the giant fibres and the general organization of… Expand
Fifty years of a command neuron: the neurobiology of escape behavior in the crayfish
Fifty years ago C.A.G. Wiersma established that the giant axons of the crayfish nerve cord drive tail-flip escape responses. The circuitry that includes these giant neurons has now become one of the… Expand
Excitation and habituation of the crayfish escape reflex: the depolarizing response in lateral giant fibres of the isolated abdomen.
- F. Krasne
- Biology, Medicine
- The Journal of experimental biology
- 1 February 1969
The tail-flip escape reflex of the crayfish shows marked habituation and is very amenable to detailed electrophysiological study. It thus provides a model system for comprehending the neural basis… Expand
Habituation of an invertebrate escape reflex due to modulation by higher centers rather than local events.
Learning is widely thought to result from altered potency of synapses within the neural pathways that mediate the learned behavior. Support for this belief, which pervades current physiological and… Expand
Crayfish tonic inhibition: prolonged modulation of behavioral excitability by classical GABAergic inhibition
Previous studies have indirectly implicated the two neurotransmitters 5- HT and GABA in mediating tonic inhibition of the crayfish lateral giant (LG) escape reaction. In this study, pharmacological… Expand
Serotonin and octopamine have opposite modulatory effects on the crayfish's lateral giant escape reaction
Serotonin and octopamine have opposite effects on a simple behavioral response, the crayfish's lateral giant escape reaction. Specifically, serotonin depresses the lateral giants' responsiveness,… Expand
Dual and Opposing Modulatory Effects of Serotonin on Crayfish Lateral Giant Escape Command Neurons
- T. Teshiba, A. Shamsian, B. Yashar, S. Yeh, D. H. Edwards, F. Krasne
- Biology, Medicine
- The Journal of Neuroscience
- 15 June 2001
Serotonin modulates afferent synaptic transmission to the lateral giant neurons of crayfish, which are command neurons for escape behavior. Low concentrations, or high concentrations reached… Expand
Response-dedicated trigger neurons as control points for behavioral actions: selective inhibition of lateral giant command neurons during feeding in crayfish
Feeding behavior suppresses lateral giant neuron-mediated escape behavior in crayfish. The suppression appears to result from reduced transmission to the lateral giants from primary afferents and/or… Expand
Cholinergic transmission at the first synapse of the circuit mediating the crayfish lateral giant escape reaction.
1. The chemical synapses between mechanoreceptor neurons and first-order interneurons in the lateral giant (LG) neuron escape circuit of the crayfish have plastic properties, some of which are… Expand
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… Expand