Recent Publications
Barchi, J.R. Knowles, J.M., Simmons, J.A. (2013) Spatial memory and stereotypy of flight paths by big brown bats in cluttered surroundings.
J. Exp. Biol. 216, 1053-1063.
Simmons, J. A. and Gaudette, J. E. (2012) Biosonar echo processing.
IET Radar, Sonar and Navigation. DOI: 10.1049/iet-rsn.2012.0009
Simmons, J. A. (2012) Bats use a neuronally implemented computational acoustic model to form sonar images. Science Direct,
Current Opinion in Neurobiology 2012: 22:311-319.
Simmons, A.M., Flores, V. (2011) Particle motion is broadly represented in the vestibular medulla of the bullfrog across larval development.
J. Comp. Physiol. DOI: 10.1007
Sharma, N., Buck, J.R., and Simmons, J.A. (2011). Trading detection for resolution in active sonar receivers.
J. Acoust. Soc. Am. 130, 1272-1281.
Sharma, N., Buck, J.R., and Simmons, J.A. (2011). Trading detection for resolution in active sonar receivers.
J. Acoust. Soc. Am. 130, 1272-1281.
Bates, M.E., Simmons, J.M., and Zorikov, T.V. (2011) Bats Use Echo Harmonic Structure to Distinguish Their Targets from Background Clutter.
Science 333: 627-630.
Schmidt, B.P., Knowles, J.M. and Simmons, A.M. (2011) Movements of Rana catesbeiana tadpoles in weak current flows resemble a directed random walk.
J. Exp. Biol. 214 2297-2307.
Bates, M. E. and Simmons, J. A. (2011). Perception of echo delay is disrupted by small temporal misalignment of echo harmonics in bat sonar.
J. Exp. Biol. 214, 394-401.
Simmons, J. A. and Simmons, A. M (2010). Bats and frogs and animals in between: evidence for a common central timing mechanism to extract periodicity pitch.
J. Comp. Physiol. DOI: 10.1007/s00359-010-0607-4.
Horowitz, S.S. & Simmons, A.M. (2010). Development of Tectal Connectivity across Metamorphosis in the Bullfrog (Rana catesbeiana).
Brain Beh. Evol. 76: 226-247.
Bates, M. E. and Simmons, (2010) Perception of echo delay is disrupted by small temporal misalignment of echo harmonics in bat sonar.
J. Exp. Biol. 214, 394-401.
Bates, M. E., Cropp, B. F., Gonchar, M., Knowles, J., Simmons, J. A. and Simmons, A. M. (2010). Spatial location influences acoustic interaction in chorusing bullfrogs.
J. Acoust. Soc. Am. 127, 2664-2677..
Bates, M. E., and Simmons, J. A. (2010) Effects of filtering of harmonics from biosonar echoes on delay acuity by big brown bats (Eptesicus fuscus).
J. Acoust. Soc. Am. 128, 936-946.
Hiryu, S., Bates, M. E., Simmons, J. A., and Riquimaroux, H. (2010) FM echolocating bats shift frequencies to avoid broadcast-echo ambiguity in clutter.
Proc. Nat. Acad. Sci. 107, 7048-7053.
Simmons, J. A. (2010). What microphone arrays tell us about bat sonar.
ASA Echoes, 20, 1, 1-3
195: 79-89. Petrites, A. E., Eng, O. S., Mowlds, D. S., Simmons, J. A., and Delong, C. M. (2009). Interpulse interval modulation by echolocating big brown bats ( Eptesicus fuscus) in different densities of obstacle clutter. J. Comp. Physiol.-A. 195, 603-617.
Stamper, S. A., Bates, M. E., Benedicto, D. and Simmons, J. A. (2009). Role of broadcast harmonics in echo delay perception by big brown bats. J. Comp. Physiol.-A, 195: 79-89.
DeLong, C. M., Bragg, R., and Simmons, J. A. (2008). Evidence for spatial representation of object shape in echolocating bats (Eptesicus fuscus). J. Acoust. Soc. Am. 123, 4582-4598.
Simmons, A.M., Tanyu, L.H., Horowitz, S.S. & Brown, R.A. (2008). Patterns of GAP-43 immunoreactivity in the nervous system of the bullfrog across development. Brain, Behav. Evol.. 71: 247-262.
Simmons, A.M., Horowitz, S.S. & Brown, R.A. (2008). Cell proliferation in the forebrain and midbrain of the adult bullfrog, Rana catesbeiana. Brain Behav. Evol. 71: 41-53.
Horowitz, S. S, Stamper, S. A., and Simmons, J. A. (2008). Neuronal connexin expression in the cochlear nucleus of big brown bats. Brain Research 1197, 76-84.
Hiryu, S., Shimamoto, H., Bates, M., Stamper, S., Simmons, J. A., and Riquimaroux, H. (2008) Jamming avoidance strategy for temporal overlap of own reverberant echoes by FM echolocating bats (Eptesicus fuscus) during flight, revealed by telemetry sound recording. Trans. Tech. Comm. Psychol. Physiol. Acoust., The Acoustical Society of Japan, 36.
Simmons, A. M., Simmons, J. A., & Bates, M. E. (2008). Analyzing acoustic interactions in natural bullfrog choruses. Journal of Comparative Psychology, 122: 274-282.
Stamper, S. A., Simmons, J. A., DeLong, C. M., and Bragg, R. (2008). Detection of targets co-localized in clutter by echolocating big brown bats (Eptesicus fuscus). J. Acoust. Soc. Am, 124, 667-673.
Bates, M. E., Stamper, S. A., and Simmons, J. A. (2008). Jamming avoidance response of big brown bats in target detection. J. Exp. Biol. 211, 106-113.
Au, W. W. L., and Simmons, J. A. (2007) Echolocation in dolphins and bats. Physics Today.
Saillant, P. A., Simmons, J. A., Bouffard, F. H., Lee, D. N., and Dear, S. (2007) Sonar sounds impinging on the target during interception by big brown bat, Eptesicus fuscus. J. Acoust. Soc. Am. in press.
Horowitz, S.S. & Simmons, A.M. (2007). Dynamic visualization of the developing nervous system of the bullfrog, Rana catesbeiana. Brain Res. 1157: 23-31.
Horowitz, S.S., Tanyu, L.H. & Simmons, A.M. (2007). Multiple mechanosensory modalities influence development of auditory function. J. Neurosci. 27:782-790.
Horowitz, S.S., Chapman, J.A. & Simmons, A.M. (2007). Plasticity of auditory medullary-midbrain connectivity across me
Simmons, A.M. & Horowitz, S.S. (2006). Plasticity in the Auditory System across Metamorphosis. In: P. Narins, A.S. Feng, R.R. Fay, and A.N. Popper (eds). Hearing and Sound Communication in Amphibians. Springer-Verlag: Berlin, pp. 291-322.
Eastman, K. A. and Simmons, J. A. (2005) A method of flight path and chirp pattern reconstruction for multiple flying bats. Acoustics Research Letters Online, 6, 257-262.
Simmons, J. A. (2005) Big brown bats and June beetles: multiple pursuit strategies in a seasonal acoustic predator-prey system. Acoustics Research Letters Online, 6, 238-242.
Sanderson, M. I. and Simmons, J. A. (2005) Target representation for naturalistic echolocation sequences in single unit responses from the inferior colliculus of big brown bats. J. Acoust. Soc. Am. 118, 3352-331.
Horowitz, S.S., Blanchard, J., & Morin L.P. (2005). Medial vestibular connections with the orexin/hypocretin system. J. Comp. Neurol. 487: 127-146.
Horowitz, S.S., Simmons, A.M., & Ketten, D. (2005). Optical and tomographic imaging of a middle ear malformation in the bullfrog (Rana catesbeiana). J. Acoust. Soc. Amer. 118: 1166-1171
Horowitz, S. S., Cheney, C. A., and Simmons, J. A. (2004) Interaction of vestibular, echolocation, and visual modalities guiding flight by the big brown bat, Eptesicus fuscus. J. Vestibular Res. 14, 17-32.
Simmons, J. A., Neretti, N., Intrator, N., Altes, R. A., Ferragamo, M. J., and Sanderson, M. I. (2004) Delay accuracy in bat sonar is related to the reciprocal of normalized echo bandwidth, or Q. Proc. Nat. Acad. Sci. 101, 3638-3643.
Sanderson, M. I., Neretti, N., Intrator, N., and Simmons, J. A. (2003) Evaluation of an auditory model for echo delay accuracy in wideband biosonar. J. Acoust. Soc. Am. 114, 1648-1659.
Simmons, J. A., Ferragamo, M. J., and Sanderson, M. I. (2003) Echo delay versus spectral cues for temporal hypracuity in the big brown bat, Eptesicus fuscus. J. Comp. Physiol. A. 189, 693-702.
Neretti, N., Sanderson, N. I., Intrator, N., and Simmons, J. A. (2003). Time-frequency computational model for echo-delay resolution in sonar images of the big brown bat, Eptesicus fuscus. J. Acoust. Soc. Am, 113, 2137-2145.
Sanderson, M. I. and Simmons, J. A. (2002) Selectivity for echo spectral shape and delay in the auditory cortex of the big brown bat, Eptesicus fuscus. J. Neurophysiol. 87, 2823-2834.
Simmons, J. A., Wotton, J. M., Ferragamo, M. J., and Moss, C. F. (2002). Transformation of external-ear spectral cues into perceived delays by the big brown bat, Eptesicus fuscus. J. Acoust. Soc. Am. 111, 2771-2782.
Simmons, J. A., Eastman, K. M., and Horowitz, S. S. (2001) Versatility of biosonar in the big brown bat, Eptesicus fuscus. Acoustics Research Letters Online, 2, 43-48.
Simmons, A. M., Eastman, K. M., and Simmons, J. A. (2000) Autocorrelation model of periodicity coding in bullfrog auditory nerve fibers. Acoustics Research Letters Online, 2, 1-6.
Sanderson, M. I., and Simmons, J. A. (2000) Neural responses to overlapping FM sounds in the inferior colliculus of echolocating bats. J. Neurophysiol. 83, 1840-1855.
Wotton, J. A., and Simmons, J. A. (2000) Spectral cues and perception of the vertical position of targets by the big brown bat, Eptesicus fuscus. J. Acoust. Soc. Am. 107, 1034-1041.
