Responses of the antennal bimodal hygroreceptor neurons to innocuous and noxious high temperatures in the carabid beetle, Pterostichus oblongopunctatus

摘要: Electrophysiological responses of thermo- and hygroreceptor neurons from antennal dome-shaped sensilla the carabid beetle Pterostichus oblongopunctatus to different levels steady temperature ranging 20 35°C rapid step-changes in it were measured analysed at both constant relative absolute ambient air humidity conditions. It appeared that respond which means they are bimodal. For first time arthropods, ability dry moist produce high induced spike bursts is documented. Burstiness trains dependent increases with increase. Threshold temperatures two switch regular spiking bursting lower compared cold neuron, differ approximately coincide upper limit preferred species. We emphasise that, contrast various sensory systems studied, P. have stable continuous burst trains, no temporal information encoded timing bursts. hypothesise produced by may be responsible for detection noxious important behavioural thermoregulation beetles.