@article {47589, title = {Processing of vibratory and acoustic signals by ventral cord neurones in the cricket Gryllus campestris}, journal = {Journal of Insect Physiology}, volume = {30}, year = {1984}, month = {Jan-01-1984}, pages = {575 - 585}, abstract = {

The responses of single vibratory receptors and ascending ventral cord interneurones were studied extracellularly in Gryllus campestris L. The physiology of the vibration receptors resembled those found in tettigoniids and locusts. The frequency responses of the subgenual receptors provide two possible cues for central frequency discrimination: differences in mean tuning between groups of receptors in the different leg pairs and a range of receptors tuned to different frequencies within one subgenual organ.

Most of the ascending vibratory interneurones were highly sensitive in either the low or high frequency range. Broadbanded neurones were less sensitive. The characteristic sensitivity peaks of these units are due mainly to receptor inputs from a particular leg pair, although most central neurones receive inputs from all 6 legs. Only one neurone type, TN1 received excitatory inputs from both auditory and vibratory receptors; its responses were greatly enhanced by the simultaneous presentation of both stimulus modes. The responses to sound stimuli of AN2, on the other hand, were inhibited by vibration. No other auditory interneurones investigated were influenced by inputs from vibration receptors. Central processing of vibratory information in the cricket is compared with that of tettigoniids and locusts.

}, keywords = {central coprocessing, cricket, interneurone, sound, vibration}, issn = {00221910}, doi = {10.1016/0022-1910(84)90086-6}, url = {http://linkinghub.elsevier.com/retrieve/pii/0022191084900866}, author = {K{\"u}hne, Roland and Silver, Susan and Lewis, Brian} } @article {17213, title = {The neuromuscular mechanism of stridulation in crickets (Orthoptera: Gryllidae).}, journal = {Journal of Experimental Biology}, volume = {45}, year = {1966}, month = {1966 Aug}, pages = {151-64}, abstract = {

Study of the insect neuromuscular system appears very promising as a means of
explaining behaviour in terms of cellular operation. The relatively small number of
neurons, the ganglionic nature of the nervous system, the simplicity of the neuro-
muscular arrangement, and the repetitiveness of behavioural sequences all lend them-
selves to a solution of this problem. As a result, an increasing number of investigators
have been turning their attention to insects and especially to the large orthopterans.
Recently, Ewing \& Hoyle (1965) and Huber (1965) reported on muscle activity
underlying sound production in crickets. The acoustic behaviour is well understood
(Alexander, 1961) and in the genera Gryllus, Acheta and Gryllodes communication is
mediated by three basic songs composed of three types of pulses. While working
independently on this system at the University of Cologne (W.K.) and the University
of Michigan (D.B.) using various Gryllus species, we found a number of basic
differences between the muscle activity in our crickets and that reported by Ewing
\& Hoyle (1965) for Acheta domesticus. These two genera, Gryllus and Acheta, are so
nearly identical that they are distinguished solely by differences in the male genitalia
(Chopard, 1961). The present paper constitutes a survey of muscle activity patterns
producing stridulation in four species of field crickets. Since the work of the two
authors was carried out independently, non-overlapping experiments will be initialled
to indicate the investigator.

}, keywords = {Animals, Electrophysiology, insects, muscles, neuromuscular junction, sound}, issn = {0022-0949}, author = {Bentley, D R and Kutsch, W} }