Abstract
Three identified interneurons of the cercal system were investigated electrophysiologically; these interneurons are sensitive only to stimulation of cercal filiform-hair sensilla by low-frequency sound. Measurement of the frequency ranges revealed cut-off frequencies between ca. 20 and 70 Hz. Analysis of the responses near threshold and at higher intensities in the frequency range 5–500 Hz shows that one of them (Interneuron 9-1b) exhibits a sensitivity maximum at the frequency-intensity combination necessary for the perception of an intraspecific signal at 30 Hz. This band-pass behavior disappears at higher stimulus intensities. In order to investigate the mechanism of the low-frequency selectivity of the interneurons, two-tone stimulation experiments were performed. When stimuli in the best-frequency range were superimposed by a 100-Hz tone, the spiking activity was suppressed in an intensity-dependent manner.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Accepted: 22 July 1998
Rights and permissions
About this article
Cite this article
Vedenina, V., Rozhkova, G., Panjutin, A. et al. Frequency-intensity characteristics of cricket cercal interneurons: low-frequency-sensitive units. J Comp Physiol A 183, 553–561 (1998). https://doi.org/10.1007/s003590050281
Issue Date:
DOI: https://doi.org/10.1007/s003590050281