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Binaural comparison of intensity is the basis of sound localisation in crickets. Two features of the neural response, response strength and response latency, can encode intensity. Therefore, binaural difference in spike-count and in latency can be used as sound localisation cues. In this work, I investigate the effects of ultrasound intensity and pulse-rate on sound localisation cues as well as the directionality of the response in an ultrasound-sensitive interneuron, AN2. I found that habituation, a decline in neural response, decreases binaural cues encoded in spike-count but increases the cues encoded in first-spike latency. In addition, binaural spike-count and latency difference encode the exact location of ultrasound pulses with similar reliability. As crickets are submitted to habituating stimuli in their natural environment, latency difference is a more useful cue than spike-count difference to locate an ultrasound, although comparison of these results with a previous study suggests that crickets use predominantly binaural difference in spike-count to localise ultrasound.

Typescript. / Thesis (Ph. D.)--University of Hawaii at Manoa, 1976. / Bibliography: leaves 153-169. / Microfiche. / ix, 169 leaves ill

Typescript. / Bibliography: leaves 177-187. / xi, 187 leaves ill. (some col.)

Thesis (M.S.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains iii, 44 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 42-44).

Thesis (M. Communication Pathology)--University of Pretoria, 2006. / Summary in English and Afrikaans. Includes bibliographical references.

Diss. (sammanfattning) Stockholm : Karol. inst., 2006. / Härtill 4 uppsatser.

Thesis (M.S.)--Rochester Institute of Technology, 1992. / Typescript. Includes bibliographical references (leaves 54-55).

Research paper (M.A.) -- Cardinal Stritch College -- Milwaukee, 1970. / A research paper submitted in partial fulfillment of the requirements for the degree of Master of Arts in Education (Reading Specialist). Includes bibliographical references (p. 87-91).

Thesis (doctoral--Westfälischen Wilhelms-Universität zu Münster (Westf.), 1973. / Cover date: 1974. Vita. Includes bibliographical references (p. 193-198).