20.500.12556/DiRROS-21689 Temporal processing of vibratory communication signals at the level of ascending interneurons in Nezara viridula (Hemiptera: Pentatomidae) During mating, males and females of N. viridula (Heteroptera: Pentatomidae) produce sex- and species-specific calling and courtship substrate-borne vibratory signals, grouped into songs. Recognition and localization of these signals are fundamental for successful mating. The recognition is mainly based on the temporal pattern, i.e. the amplitude modulation, while the frequency spectrum of the signals usually only plays a minor role. We examined the temporal selectivity for vibratory signals in four types of ascending vibratory interneurons in N. viridula. Using intracellular recording and labelling technique, we analyzed the neurons' responses to 30 pulse duration/interval duration (PD/ID) combinations. Two response arrays were created for each neuron type, showing the intensity of the responses either as time-averaged spike counts or as peak instantaneous spike rates. The mean spike rate response arrays showed preference of the neurons for short PDs (below 600 ms) and no selectivity towards interval duration; while the peak spike rate response arrays exhibited either short PD/long ID selectivity or no selectivity at all. The long PD/short ID combinations elicited the weakest responses in all neurons tested. No response arrays showed the receiver preference for either constant period or duty cycle. The vibratory song pattern selectivity matched the PD of N. viridula male vibratory signals, thus pointing to temporal filtering for the conspecific vibratory signals already at level of the ascending interneurons. In some neurons the responses elicited by the vibratory stimuli were followed by distinct, regular oscillations of the membrane potential. The distance between the oscillation peaks matched the temporal structure of the male calling song, indicating a possible resonance based mechanism for signal recognition. animal communication entomology true false true Angleški jezik Ni določen Neznano 2025-03-12 11:53:05 2025-03-12 11:53:05 2025-03-13 03:52:39 0000-00-00 00:00:00 2011 0 0 str. 1-8 no. 10 Vol. 6 2011 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2011-10-28 591 Y506-0087 10.1371/journal.pone.0026843 2450767 http://dx.doi.org/10.1371/journal.pone.0026843 1 301f2b84-ff30-11ef-88ed-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31099 RAZ_Zorovic_Maja_2011.pdf RAZ_Zorovic_Maja_2011.pdf 1 7490B618229F7970AEB21F44B0856DD3 6784a1883349d39fe625722ba707e38fe8a98ef6111ca0a0a7dc90449d0744b1 4ee94c28-ff30-11ef-88ed-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31100 Nacionalni inštitut za biologijo 0 0 0