Abstract

In this work we investigate the role of the environmental noise in the sexual communication between individuals of the Sicilian green stink bug Nezara Viridula. Our goal is to analyze the spectral features of several types of songs emitted by these insects and to find the amplitude threshold value. Below this value the signal is so weak that no neuronal activation occurs in Nezara Viridula. The presence of activation is revealed by performing directionality tests and observing the behavioral response of the insect in localizing the source of vibratory signals. Afterwards experiments are performed by using a sub-threshold signal added to a white Gaussian noise. The response of the test insect is examined for different level of noise intensity. A behavior corresponding to neuronal activation is observed when a suitable level of white noise is added to the sub-threshold signal. Our experimental measurements show the constructive interplay between the calling songs and the external-added noise. For sub-threshold signals of the calling sequence the response is subject to a non dynamical stochastic resonance phenomenon.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2007

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insects
thresholds
activation
noise intensity
random noise
white noise
communication

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@misc{c9b6170d93a74b29961e619d129b28c4,
title = "Stochastic resonance effect on the vibratory signals of stink bugs",
abstract = "In this work we investigate the role of the environmental noise in the sexual communication between individuals of the Sicilian green stink bug Nezara Viridula. Our goal is to analyze the spectral features of several types of songs emitted by these insects and to find the amplitude threshold value. Below this value the signal is so weak that no neuronal activation occurs in Nezara Viridula. The presence of activation is revealed by performing directionality tests and observing the behavioral response of the insect in localizing the source of vibratory signals. Afterwards experiments are performed by using a sub-threshold signal added to a white Gaussian noise. The response of the test insect is examined for different level of noise intensity. A behavior corresponding to neuronal activation is observed when a suitable level of white noise is added to the sub-threshold signal. Our experimental measurements show the constructive interplay between the calling songs and the external-added noise. For sub-threshold signals of the calling sequence the response is subject to a non dynamical stochastic resonance phenomenon.",
keywords = "Noise in biological systems; Biophysical mechanisms of interaction; Fluctuation phenomena, and Brownian motion, noise, random processes",
author = "Alessandro Fiasconaro and Nicola Pizzolato and Davide Valenti and {Lo Bue}, Paolo and Stefano Spezia and Luciano Curcio and Stefano Colazza and Ezio Peri and Bernardo Spagnolo",
year = "2007",
language = "English",
type = "Other",

}

TY - GEN

T1 - Stochastic resonance effect on the vibratory signals of stink bugs

AU - Fiasconaro, Alessandro

AU - Pizzolato, Nicola

AU - Valenti, Davide

AU - Lo Bue, Paolo

AU - Spezia, Stefano

AU - Curcio, Luciano

AU - Colazza, Stefano

AU - Peri, Ezio

AU - Spagnolo, Bernardo

PY - 2007

Y1 - 2007

N2 - In this work we investigate the role of the environmental noise in the sexual communication between individuals of the Sicilian green stink bug Nezara Viridula. Our goal is to analyze the spectral features of several types of songs emitted by these insects and to find the amplitude threshold value. Below this value the signal is so weak that no neuronal activation occurs in Nezara Viridula. The presence of activation is revealed by performing directionality tests and observing the behavioral response of the insect in localizing the source of vibratory signals. Afterwards experiments are performed by using a sub-threshold signal added to a white Gaussian noise. The response of the test insect is examined for different level of noise intensity. A behavior corresponding to neuronal activation is observed when a suitable level of white noise is added to the sub-threshold signal. Our experimental measurements show the constructive interplay between the calling songs and the external-added noise. For sub-threshold signals of the calling sequence the response is subject to a non dynamical stochastic resonance phenomenon.

AB - In this work we investigate the role of the environmental noise in the sexual communication between individuals of the Sicilian green stink bug Nezara Viridula. Our goal is to analyze the spectral features of several types of songs emitted by these insects and to find the amplitude threshold value. Below this value the signal is so weak that no neuronal activation occurs in Nezara Viridula. The presence of activation is revealed by performing directionality tests and observing the behavioral response of the insect in localizing the source of vibratory signals. Afterwards experiments are performed by using a sub-threshold signal added to a white Gaussian noise. The response of the test insect is examined for different level of noise intensity. A behavior corresponding to neuronal activation is observed when a suitable level of white noise is added to the sub-threshold signal. Our experimental measurements show the constructive interplay between the calling songs and the external-added noise. For sub-threshold signals of the calling sequence the response is subject to a non dynamical stochastic resonance phenomenon.

KW - Noise in biological systems; Biophysical mechanisms of interaction; Fluctuation phenomena

KW - and Brownian motion

KW - noise

KW - random processes

UR - http://hdl.handle.net/10447/46103

M3 - Other contribution

ER -