Response properties of primary auditory fibers in the cricketTeleogryllus oceanieus (Le Guillou)

Summary Single unit recordings of primary auditory fibers ofTeleogryllus oceanicus show responses to frequencies over the range 0.5 kHz to 42 kHz. The characteristic frequencies (ChFs) of units were distributed over much of the bandwidth investigated although few units were recorded with ChFs below 4 kHz or in the region 7 kHz to 10 kHz. Some units showed more than one peak of sensitivity and others were broad-banded with no tuning to a particular frequency. Units whose ChFs approximated to the carrier frequency (CF) of the proclamation song were the most highly tuned. The majority of units had a tonic response pattern and were not spontaneously active. The implications of these findings are discussed.Abbreviations ChF characteristic frequency - CF carrier frequency We thank Mr. P. Foster for techninical help.