The L3 neuron and an associated prothoracic network are involved in calling song recognition by female crickets |
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Authors: | John Stout Nathan Carlson Hilary Bingol James Ramseier Michael Bronsert Gordon Atkins |
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Institution: | (1) Biology Department, Andrews University, 49104 Berrien Springs, MI, USA |
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Abstract: | In young virginAcheta domesticus females, the spiking response of the prothoracic L3 auditory interneuron discriminates between calling songs (CSs) with phonotactically
attractive and unattractive syllable periods (SPs), which parallels phonotactic discrimination. Presentation of a CS with
an originally attractive SP, but with the intensity modulated so as to minimize L3's selective response, results in a CS with
little phonotactic attractiveness. Conversely, a CS with an originally unattractive SP becomes much more attractive when the
CS is intensity modulated in ways that duplicate L3's selective response. L3's discriminatory response to CS SP deteriorates
with age, in parallel with decreased phonotactic selectiveness (females, older than 14 days, typically are unselective for
CS SPs). SP-selective processing, which was not apparent in these old L3s, is immediately restored by removing the contralateral
ear. SP-specific information is resident in a network of neurons within the prothoracic ganglion that results in the SP selective
responses of the L3 neuron in young females. Changes in the SP-selective responses of the L3 neuron are highly correlated
with corresponding changes in the female's phonotactically selective behavior. |
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Keywords: | L3 neuron Acheta domesticus calling song |
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