Date of Award

12-10-2015

Document Type

Honors Thesis

Department

Biology

First Advisor

Benjamin Navia

Abstract

Female crickets exhibit positive phonotaxis in response to calling songs with specific carrier frequencies (4-5 kHz), syllable periods (SP; 50-70ms), and other parameters. Among a number of ascending prothoracic auditory neurons identified, only L3 has been proposed to be involved in SP selective phonotaxis. L3 responds with selective decrement to 5 kHz stimulus with attractive SPs. Furthermore, L3 is highly tuned to 16 kHz auditory stimulus, which has been correlated with aversive phonotactic behaviors. L3’s cellular responses to simultaneous 16 kHz and 5 kHz stimuli were examined through extracellular recording, thereby further establishing the connection between L3’s selective decrement and selective phonotatic behavior.

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