[Effect of serotonin and noradrenaline on the magnitude of the response of the command neurons for defensive behavior in Helix lucorum L].
Changes in synaptic responses of identified command neurones of avoidance behaviour to the electric nerve stimulation were investigated in the isolated nervous system of the snail during bath application of serotonin or noradrenaline. Serotonin (10(-5) M) elicited an increase of summary EPSP amplitude in the cells without changes of input resistance and resting potential. Noradrenaline (10(-5) M) application evoked an increase of EPSP amplitude, accompanied by an increase of the input resistance. Mechanisms of serotonin and noradrenaline influence on synaptic responses are discussed.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D002462:Cell Membrane / Q000187:drug effects; D004553:Electric Conductivity; D004558:Electric Stimulation; D005724:Ganglia / Q000187:drug effects*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009638:Norepinephrine / Q000494:pharmacology*; D012701:Serotonin / Q000494:pharmacology*; D009435:Synaptic Transmission / Q000187:drug effects
D012701:Serotonin; D009638:Norepinephrine
Vliianie serotonina i noradrenalina na velichinu reaktsii komandnykh neĭronov oboronitel'nogo povedeniia vinogradnoĭ ulitki.