My laboratory studies the biological sonar systems of bats. The big brown bat, Eptesicus fuscus, emits ultrasonic, frequency-modulated (FM) echolocation sounds and exhibits unusually sophisticated real-time signal-processing techniques for auditory representation of FM echoes. The principal goal of my research is to understand how natural images are created in perception from neural reconstruction of the target scene by the bat's brain.
| Wheeler, Alyssa R., Fulton, Kara A., Gaudette, Jason E., Simmons, Ryan A., Matsuo, Ikuo, Simmons, James A. "Echolocating Big Brown Bats, Eptesicus fuscus, Modulate Pulse Intervals to Overcome Range Ambiguity in Cluttered Surroundings." Front. Behav. Neurosci., vol. 10, 2016. |
| Kloepper, Laura N., Linnenschmidt, Meike, Blowers, Zelda, Branstetter, Brian, Ralston, Joel, Simmons, James A. "Estimating colony sizes of emerging bats using acoustic recordings." R. Soc. open sci., vol. 3, no. 3, 2016, pp. 160022. |
| Warnecke, Michaela, Simmons, James A. "Target shape perception and clutter rejection use the same mechanism in bat sonar." J Comp Physiol A, vol. 202, no. 5, 2016, pp. 371-379. |
| Boku, Shokei, Riquimaroux, Hiroshi, Simmons, Andrea Megela, Simmons, James A. "Auditory brainstem response of the Japanese house bat (Pipistrellus abramus)." The Journal of the Acoustical Society of America, vol. 137, no. 3, 2015, pp. 1063-1068. |
| Simmons AM, Boku S, Riquimaroux H, Simmons JA. "Auditory brainstem responses of Japanese house bats (Pipistrellus abramus) after exposure to broadband ultrasonic noise." The Journal of the Acoustical Society of America, vol. 138, no. 4, 2015, pp. 2430-7. |
| Knowles, Jeffrey M., Barchi, Jonathan R., Gaudette, Jason E., Simmons, James A. "Effective biosonar echo-to-clutter rejection ratio in a complex dynamic scene." The Journal of the Acoustical Society of America, vol. 138, no. 2, 2015, pp. 1090-1101. |
| He, Weikai, Pedersen, Scott C., Gupta, Anupam K., Simmons, James A., Müller, Rolf. "Lancet Dynamics in Greater Horseshoe Bats, Rhinolophus ferrumequinum." PLoS ONE, vol. 10, no. 4, 2015, pp. e0121700. |
| Kloepper, Laura, Wojciechowicz, Rebecca, Simmons, James. "The effect of mouth gape angle on beam size for echolocating Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 137, no. 4, 2015, pp. 2335-2335. |
| Simmons, James A., Warnecke, Michaela, Gaudette, Jason E. "Biosonar auditory model for target shape perception and clutter rejection." The Journal of the Acoustical Society of America, vol. 135, no. 4, 2014, pp. 2174-2174. |
| Kloepper, Laura N., Smith, Adam B., Nachtigall, Paul E., Buck, John R., Simmons, James A., Pacini, Aude F. "Cognitive Adaptation of Sonar Gain Control in the Bottlenose Dolphin." PLoS ONE, vol. 9, no. 8, 2014, pp. e105938. |
| Gaudette, Jason E., Simmons, James A. "Encoding phase information is critical for high resolution spatial imaging in biosonar." The Journal of the Acoustical Society of America, vol. 135, no. 4, 2014, pp. 2174-2174. |
| Gaudette JE, Kloepper LN, Warnecke M, Simmons JA. "High resolution acoustic measurement system and beam pattern reconstruction method for bat echolocation emissions." The Journal of the Acoustical Society of America, vol. 135, no. 1, 2014, pp. 513-20. |
| Simmons, James A. "Segregation of ambiguous pulse-echo streams and suppression of clutter masking in FM bat sonar by anticorrelation signal processing." The Journal of the Acoustical Society of America, vol. 136, no. 4, 2014, pp. 2272-2272. |
| Warnecke M, Bates ME, Flores V, Simmons JA. "Spatial release from simultaneous echo masking in bat sonar." The Journal of the Acoustical Society of America, vol. 135, no. 5, 2014, pp. 3077-85. |
| Simmons, J. A. "Temporal binding of neural responses for focused attention in biosonar." Journal of Experimental Biology, vol. 217, no. 16, 2014, pp. 2834-2843. |
| Ketten, Darlene R., Simmons, James, Riquimaroux, Hiroshi, Cramer, Scott, Arruda, Julie. "Twists and turns, in cochlear anatomy: Curvatures related to infra vs ultrasonic hearing." The Journal of the Acoustical Society of America, vol. 135, no. 4, 2014, pp. 2266-2266. |
| Simmons, James A. "Front-looking and side-looking receiving beams for biosonar imaging and flight guidance." The Journal of the Acoustical Society of America, vol. 134, no. 5, 2013, pp. 4052-4052. |
| Simmons, James A. "Hot topics: Recent discoveries using new recording methods in animal bioacoustics." The Journal of the Acoustical Society of America, vol. 134, no. 5, 2013, pp. 4125-4125. |
| Simmons, James A., Simmons, Andrea M., Warnecke, Michaela, Barchi, Jonathan R. "Local field potentials in the big brown bat inferior colliculus track the flow of objects moving past the bat." The Journal of the Acoustical Society of America, vol. 134, no. 5, 2013, pp. 4087-4087. |
| Gaudette, Jason E., Simmons, James A. "Modeling of bio-inspired broadband sonar for high-resolution angular imaging." The Journal of the Acoustical Society of America, vol. 134, no. 5, 2013, pp. 4052-4052. |
| DiCecco J, Gaudette JE, Simmons JA. "Multi-component separation and analysis of bat echolocation calls." The Journal of the Acoustical Society of America, vol. 133, no. 1, 2013, pp. 538-46. |
| Simmons, James, Gaudette, Jason, Kloepper, Laura. "Object selection by head aim and acoustic gaze in the big brown bat." [], 2013. |
| Barchi JR, Knowles JM, Simmons JA. "Spatial memory and stereotypy of flight paths by big brown bats in cluttered surroundings." Journal of Experimental Biology, vol. 216, no. Pt 6, 2013, pp. 1053-63. |
| Kloepper, Laura N., Simmons, James A., Gaudette, Jason E., Himmelwright, Ryan, Robitzski, Dan. "Timing patterns of strobe groups for echolocating big brown bats performing a target detection task." The Journal of the Acoustical Society of America, vol. 134, no. 5, 2013, pp. 4119-4119. |
| Simmons JA. "Bats use a neuronally implemented computational acoustic model to form sonar images." Current opinion in neurobiology, vol. 22, no. 2, 2012, pp. 311-9. |
| Simmons, J.A., Gaudette, J.E. "Biosonar echo processing by frequency-modulated bats." IET Radar, Sonar & Navigation, vol. 6, no. 6, 2012, pp. 556-565. |
| Ketten, Darlene R., Simmons, James, Riquimaroux, Hiroshi, Cramer, Scott, Arruda, Julie. "Cochlear structural variants in echolocators." The Journal of the Acoustical Society of America, vol. 131, no. 4, 2012, pp. 3423-3423. |
| Simmons, James, Warnecke, Michaela. "FM bats use transform-based biosonar imaging." The Journal of the Acoustical Society of America, vol. 131, no. 4, 2012, pp. 3360-3360. |
| Simmons, James A., Hoffmann-Kuhnt, Matthias, Leong, Tzi Ming, Hiryu, Shizuko, Riquimaroux, Hiroshi, Knowles, Jeffrey M., Moss, Cynthia F. "Implications of the variety of bat echolocation sounds for understanding biosonar processing." The Journal of the Acoustical Society of America, vol. 132, no. 3, 2012, pp. 1883. |
| Gaudette, Jason E., Kloepper, Laura N., Simmons, James A. "Large reconfigurable microphone array for transmit beam pattern measurements of echolocating bats." The Journal of the Acoustical Society of America, vol. 131, no. 4, 2012, pp. 3361-3361. |
| Warnecke, Michaela, Bates, Mary E., Simmons, James A. "Spatial release from electronic clutter masking in FM bat echolocation." The Journal of the Acoustical Society of America, vol. 132, no. 3, 2012, pp. 1978. |
| Simmons JA, Megela Simmons A. "Bats and frogs and animals in between: evidence for a common central timing mechanism to extract periodicity pitch." J Comp Physiol A, vol. 197, no. 5, 2011, pp. 585-94. |
| Bates ME, Simmons JA, Zorikov TV. "Bats use echo harmonic structure to distinguish their targets from background clutter." Science, vol. 333, no. 6042, 2011, pp. 627-30. |
| Bates, Mary E., Knowles, Jeffrey M., Barchi, Jonathan R., Simmons, James A., Fujioka, Emyo, Watanabe, Yu, Furusawa, Yuto, Hiryu, Shizuko, Riquimaroux, Hiroshi. "Changes in spectrotemporal features of echolocation signals in multiple bat assemblages." The Journal of the Acoustical Society of America, vol. 129, no. 4, 2011, pp. 2470. |
| Gaudette, Jason E., Knowles, Jeffrey M., Barchi, Jonathan R., Simmons, James A. "Computational model of a bioinspired broadband receiver for sonar clutter reduction." The Journal of the Acoustical Society of America, vol. 129, no. 4, 2011, pp. 2507. |
| Takenaga, Toshiya, Hiryu, Shizuko, Simmons, James A., Riquimaroux, Hiroshi, Watanabe, Yoshiaki. "Frequency shifts of echolocation pulses in a cluttered environment: Comparison between Pipistrellus abramus and Miniopterus fuliginosus." The Journal of the Acoustical Society of America, vol. 129, no. 4, 2011, pp. 2369. |
| Simmons, James A., Bates, Mary E., Zorikov, Tengiz V. "Harmonic beamforming: Categorical perception segregates targets from clutter in bat sonar." The Journal of the Acoustical Society of America, vol. 129, no. 4, 2011, pp. 2470. |
| Bates ME, Simmons JA. "Perception of echo delay is disrupted by small temporal misalignment of echo harmonics in bat sonar." Journal of Experimental Biology, vol. 214, no. Pt 3, 2011, pp. 394-401. |
| Knowles, Jeffrey M., Gaudette, Jason, Barchi, Jonathan R., Simmons, James A. "Reconstructing echolocation behavior using time difference of arrival localization and a distributed microphone array as a virtual Telemike." The Journal of the Acoustical Society of America, vol. 129, no. 4, 2011, pp. 2574. |
| Sharma NS, Buck JR, Simmons JA. "Trading detection for resolution in active sonar receivers." The Journal of the Acoustical Society of America, vol. 130, no. 3, 2011, pp. 1272-81. |
| Barchi, Jonathan R., Gaudette, Jason E., Knowles, Jeffrey M., Simmons, James A. "Bioacoustic and behavioral correlates of spatial memory in echolocating bats." The Journal of the Acoustical Society of America, vol. 127, no. 3, 2010, pp. 2030. |
| Bates, Mary E., Watanabe, Yu, Furusawa, Yuto, Fujioka, Emyo, Hiryu, Shizuko, Riquimaroux, Hiroshi, Knowles, Jeffrey M., Simmons, James A. "Echolocation behavior of pairs of flying Eptesicus fuscus recorded with a Telemike microphone." The Journal of the Acoustical Society of America, vol. 127, no. 3, 2010, pp. 1971. |
| Bates ME, Simmons JA. "Effects of filtering of harmonics from biosonar echoes on delay acuity by big brown bats (Eptesicus fuscus)." The Journal of the Acoustical Society of America, vol. 128, no. 2, 2010, pp. 936-46. |
| Hiryu S, Bates ME, Simmons JA, Riquimaroux H. "FM echolocating bats shift frequencies to avoid broadcast-echo ambiguity in clutter." Proceedings of the National Academy of Sciences, vol. 107, no. 15, 2010, pp. 7048-53. |
| Gaudette, Jason E., Simmons, James A. "Modeling of precise onset spike timing for echolocation in the big brown bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 127, no. 3, 2010, pp. 1861. |
| Bates ME, Cropp BF, Gonchar M, Knowles J, Simmons JA, Simmons AM. "Spatial location influences vocal interactions in bullfrog choruses." The Journal of the Acoustical Society of America, vol. 127, no. 4, 2010, pp. 2664-77. |
| Bates, Mary E., Simmons, James A. "Defocusing of echo-delay images for clutter rejection in echolocating bats." The Journal of the Acoustical Society of America, vol. 126, no. 4, 2009, pp. 2271. |
| Hiryu, Shizuko, Bates, Mary, Simmons, James A., Riquimaroux, Hiroshi. "FM echolocating bats avoid pulse‐echo ambiguity by shifting broadcast frequencies." The Journal of the Acoustical Society of America, vol. 125, no. 4, 2009, pp. 2509-2509. |
| Petrites AE, Eng OS, Mowlds DS, Simmons JA, DeLong CM. "Interpulse interval modulation by echolocating big brown bats (Eptesicus fuscus) in different densities of obstacle clutter." J Comp Physiol A, vol. 195, no. 6, 2009, pp. 603-17. |
| Simmons, James A. "Jamming of bat sonar by meadow katydids (Conocephalus)." The Journal of the Acoustical Society of America, vol. 125, no. 4, 2009, pp. 2509-2509. |
| Simmons, James A. "Range is pitch, shape is pitch: How much of biosonar is adapted from passive hearing?." The Journal of the Acoustical Society of America, vol. 126, no. 4, 2009, pp. 2292. |
| Stamper SA, Bates ME, Benedicto D, Simmons JA. "Role of broadcast harmonics in echo delay perception by big brown bats." J Comp Physiol A, vol. 195, no. 1, 2009, pp. 79-89. |
| Simmons, James A. "Absolute target range and target range profile in separate computational compartments: Synthetic aperture echolocation." The Journal of the Acoustical Society of America, vol. 123, no. 5, 2008, pp. 3205. |
| Megela Simmons, Andrea, Simmons, James A., Bates, Mary E. "Analyzing acoustic interactions in natural bullfrog (Rana catesbeiana) choruses." Journal of Comparative Psychology, vol. 122, no. 3, 2008, pp. 274-82. |
| Stamper SA, Simmons JA, Delong CM, Bragg R. "Detection of targets colocalized in clutter by big brown bats (Eptesicus fuscus)." The Journal of the Acoustical Society of America, vol. 124, no. 1, 2008, pp. 667-73. |
| Bates ME, Stamper SA, Simmons JA. "Jamming avoidance response of big brown bats in target detection." Journal of Experimental Biology, vol. 211, no. Pt 1, 2008, pp. 106-13. |
| Horowitz SS, Stamper SA, Simmons JA. "Neuronal connexin expression in the cochlear nucleus of big brown bats." Brain Research, vol. 1197, 2008, pp. 76-84. |
| Simmons, James A., Bates, Mary E., Stamper, Sarah A., Benedicto, Douglas. "Perception of echoes with FM1-FM2 delay disparities: Bats have selective direction-of-gaze high-resolution imaging." The Journal of the Acoustical Society of America, vol. 124, no. 4, 2008, pp. 2483. |
| Saillant, Prestor A., Simmons, James A., Bouffard, Frederick H., Lee, David N., Dear, Steven P. "Biosonar signals impinging on the target during interception by big brown bats, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 121, no. 5, 2007, pp. 3001. |
| Saillant PA, Simmons JA, Bouffard FH, Lee DN, Dear SP. "Biosonar signals impinging on the target during interception by big brown bats, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 121, no. 5 Pt1, 2007, pp. 3001-10. |
| Au, Whitlow W. L. "Echolocation in dolphins and bats." Phys. Today, vol. 60, no. 9, 2007, pp. 40-45. |
| Simmons, James A., Bates, Mary, Stamper, Sarah. "Jamming avoidance reveals segregation of processing for detection and ranging in echolocating bats." The Journal of the Acoustical Society of America, vol. 121, no. 5, 2007, pp. 3037. |
| Foote, Kenneth G., Simmons, James A. "Bat sonar and the role of frequency diversity." The Journal of the Acoustical Society of America, vol. 119, no. 5, 2006, pp. 3318. |
| DeLong, Caroline M., Stamper, Sarah A., Simmons, James A. "Detection of objects in complex environments by echolocating big brown bats." The Journal of the Acoustical Society of America, vol. 120, no. 5, 2006, pp. 3153. |
| Petrites, Anthony E., Mowlds, Donald S., Eng, Oliver S., Simmons, James A., DeLong, Caroline M. "Echolocating big brown bats shorten interpulse intervals when flying in high-clutter environments." The Journal of the Acoustical Society of America, vol. 119, no. 5, 2006, pp. 3318. |
| DeLong, Caroline M., Bragg, Rebecca, Simmons, James A. "Perception of object features by echolocating big brown bats." The Journal of the Acoustical Society of America, vol. 119, no. 5, 2006, pp. 3316. |
| Horowitz, Seth, Simmons, James. "3D modeling and animation techniques to elucidate mechanisms of echolocation-based acoustic perception." The Journal of the Acoustical Society of America, vol. 117, no. 4, 2005, pp. 2526. |
| Eastman, Kyler M., Simmons, James A. "A method of flight path and chirp pattern reconstruction for multiple flying bats." Acoustics Research Letters Online, vol. 6, no. 4, 2005, pp. 257-262. |
| Simmons, James A. "Big brown bats and June beetles: Multiple pursuit strategies in a seasonal acoustic predator–prey system." Acoustics Research Letters Online, vol. 6, no. 4, 2005, pp. 238-242. |
| Simmons, James A. "Mechanisms proposed for spectrogram correlation and transformation deconvolution in FM bat sonar." The Journal of the Acoustical Society of America, vol. 118, no. 3, 2005, pp. 2029. |
| DeLong, Caroline M., Bragg, Rebecca, Simmons, James A. "Object representation in echolocating bats: Recognition of targets from different orientations." The Journal of the Acoustical Society of America, vol. 118, no. 3, 2005, pp. 1905. |
| Sanderson, Mark I., Simmons, James A. "Target representation of naturalistic echolocation sequences in single unit responses from the inferior colliculus of big brown bats." The Journal of the Acoustical Society of America, vol. 118, no. 5, 2005, pp. 3352. |
| Sanderson MI, Simmons JA. "Target representation of naturalistic echolocation sequences in single unit responses from the inferior colliculus of big brown bats." The Journal of the Acoustical Society of America, vol. 118, no. 5, 2005, pp. 3352-61. |
| Simmons, James A. "The big brown bat’s perceptual dimension of target range." The Journal of the Acoustical Society of America, vol. 118, no. 3, 2005, pp. 1906. |
| Simmons JA, Neretti N, Intrator N, Altes RA, Ferragamo MJ, Sanderson MI. "Delay accuracy in bat sonar is related to the reciprocal of normalized echo bandwidth, or Q." Proceedings of the National Academy of Sciences, vol. 101, no. 10, 2004, pp. 3638-43. |
| Ketten, Darlene R., Simmons, James, Hubbard, Allyn E., Mountain, David A. "Dolphin and bat sonar: Convergence, divergence, or parallelism." The Journal of the Acoustical Society of America, vol. 115, no. 5, 2004, pp. 2517. |
| Simmons, James A., Simmons, Andrea M. "Dynamics of bullfrog choruses studied by time-delay localization with an acoustic array." The Journal of the Acoustical Society of America, vol. 116, no. 4, 2004, pp. 2607. |
| Horowitz SS, Cheney CA, Simmons JA. "Interaction of vestibular, echolocation, and visual modalities guiding flight by the big brown bat, Eptesicus fuscus." Journal of vestibular research : equilibrium & orientation, vol. 14, no. 1, 2004, pp. 17-32. |
| Simmons, James A., Eastman, Kyler M., Auger, Gregory, O’Farrell, Michael J., Grinnell, Alan D., Griffin, Donald R. "Video/acoustic-array studies of swarming by echolocating bats." The Journal of the Acoustical Society of America, vol. 116, no. 4, 2004, pp. 2632. |
| Simmons, James A. "Watching bats find food: Do we classify the signals, the strategies, or the bats?." The Journal of the Acoustical Society of America, vol. 115, no. 5, 2004, pp. 2404. |
| Simmons JA, Ferragamo MJ, Sanderson MI. "Echo delay versus spectral cues for temporal hyperacuity in the big brown bat, Eptesicus fuscus." J Comp Physiol A, vol. 189, no. 9, 2003, pp. 693-702. |
| Sanderson MI, Neretti N, Intrator N, Simmons JA. "Evaluation of an auditory model for echo delay accuracy in wideband biosonar." The Journal of the Acoustical Society of America, vol. 114, no. 3, 2003, pp. 1648-59. |
| Neretti N, Sanderson MI, Intrator N, Simmons JA. "Time-frequency model for echo-delay resolution in wideband biosonar." The Journal of the Acoustical Society of America, vol. 113, no. 4 Pt 1, 2003, pp. 2137-45. |
| Sanderson MI, Simmons JA. "Selectivity for echo spectral interference and delay in the auditory cortex of the big brown bat Eptesicus fuscus." Journal of Neurophysiology, vol. 87, no. 6, 2002, pp. 2823-34. |
| Simmons JA, Wotton JM, Ferragamo MJ, Moss CF. "Transformation of external-ear spectral cues into perceived delays by the big brown bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 111, no. 6, 2002, pp. 2771-82. |
| Sanderson MI, Simmons JA. "Neural responses to overlapping FM sounds in the inferior colliculus of echolocating bats." Journal of Neurophysiology, vol. 83, no. 4, 2000, pp. 1840-55. |
| Wotton JM, Simmons JA. "Spectral cues and perception of the vertical position of targets by the big brown bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 107, no. 2, 2000, pp. 1034-41. |
| Simmons JA, Ferragamo MJ, Moss CF. "Echo-delay resolution in sonar images of the big brown bat, Eptesicus fuscus." Proceedings of the National Academy of Sciences, vol. 95, no. 21, 1998, pp. 12647-52. |
| Ferragamo MJ, Haresign T, Simmons JA. "Frequency tuning, latencies, and responses to frequency-modulated sweeps in the inferior colliculus of the echolocating bat, Eptesicus fuscus." J Comp Physiol A, vol. 182, no. 1, 1998, pp. 65-79. |
| Simmons JA, Dear SP, Ferragamo MJ, Haresign T, Fritz J. "Representation of perceptual dimensions of insect prey during terminal pursuit by echolocating bats." The Biological bulletin, vol. 191, no. 1, 1996, pp. 109-21. |
| Wotton JM, Haresign T, Ferragamo MJ, Simmons JA. "Sound source elevation and external ear cues influence the discrimination of spectral notches by the big brown bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 100, no. 3, 1996, pp. 1764-76. |
| Wotton JM, Haresign T, Simmons JA. "Spatially dependent acoustic cues generated by the external ear of the big brown bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 98, no. 3, 1995, pp. 1423-45. |
| Lee DN, Simmons JA, Saillant PA, Bouffard F. "Steering by echolocation: a paradigm of ecological acoustics." J Comp Physiol A, vol. 176, no. 3, 1995, pp. 347-54. |
| Fullard JH, Simmons JA, Saillant PA. "Jamming bat echolocation: the dogbane tiger moth Cycnia tenera times its clicks to the terminal attack calls of the big brown bat Eptesicus fuscus." Journal of Experimental Biology, vol. 194, 1994, pp. 285-98. |
| Saillant PA, Simmons JA, Dear SP, McMullen TA. "A computational model of echo processing and acoustic imaging in frequency-modulated echolocating bats: the spectrogram correlation and transformation receiver." The Journal of the Acoustical Society of America, vol. 94, no. 5, 1993, pp. 2691-712. |
| Dear SP, Simmons JA, Fritz J. "A possible neuronal basis for representation of acoustic scenes in auditory cortex of the big brown bat." J. Geophys. Res., vol. 364, no. 6438, 1993, pp. 620-3. |
| Moss CF, Simmons JA. "Acoustic image representation of a point target in the bat Eptesicus fuscus: evidence for sensitivity to echo phase in bat sonar." The Journal of the Acoustical Society of America, vol. 93, no. 3, 1993, pp. 1553-62. |
| Simmons JA. "Evidence for perception of fine echo delay and phase by the FM bat, Eptesicus fuscus." J Comp Physiol A, vol. 172, no. 5, 1993, pp. 533-47. |
| Dear SP, Fritz J, Haresign T, Ferragamo M, Simmons JA. "Tonotopic and functional organization in the auditory cortex of the big brown bat, Eptesicus fuscus." Journal of Neurophysiology, vol. 70, no. 5, 1993, pp. 1988-2009. |
| Simmons JA, Moffat AJ, Masters WM. "Sonar gain control and echo detection thresholds in the echolocating bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 91, no. 2, 1992, pp. 1150-63. |
| Simmons JA, Dear SP. "Computational representations of sonar images in bats." Current Biology, vol. 1, no. 3, 1991, pp. 174-6. |
| Simmons JA, Moss CF, Ferragamo M. "Convergence of temporal and spectral information into acoustic images of complex sonar targets perceived by the echolocating bat, Eptesicus fuscus." J Comp Physiol A, vol. 166, no. 4, 1990, pp. 449-70. |
| Simmons JA, Ferragamo M, Moss CF, Stevenson SB, Altes RA. "Discrimination of jittered sonar echoes by the echolocating bat, Eptesicus fuscus: the shape of target images in echolocation." J Comp Physiol A, vol. 167, no. 5, 1990, pp. 589-616. |
| Simmons JA. "A view of the world through the bat's ear: the formation of acoustic images in echolocation." Cognition, vol. 33, no. 1-2, 1989, pp. 155-99. |
| Simmons JA, Freedman EG, Stevenson SB, Chen L, Wohlgenant TJ. "Clutter interference and the integration time of echoes in the echolocating bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 86, no. 4, 1989, pp. 1318-32. |
| Simmons JA, Chen L. "The acoustic basis for target discrimination by FM echolocating bats." The Journal of the Acoustical Society of America, vol. 86, no. 4, 1989, pp. 1333-50. |
| Simmons JA, Kick SA, Moffat AJ, Masters WM, Kon D. "Clutter interference along the target range axis in the echolocating bat, Eptesicus fuscus." The Journal of the Acoustical Society of America, vol. 84, no. 2, 1988, pp. 551-9. |
| Masters WM, Moffat AJ, Simmons JA. "Sonar tracking of horizontally moving targets by the big brown bat Eptesicus fuscus." Science, vol. 228, no. 4705, 1985, pp. 1331-3. |
| Kick SA, Simmons JA. "Automatic gain control in the bat's sonar receiver and the neuroethology of echolocation." Journal of Neuroscience, vol. 4, no. 11, 1984, pp. 2725-37. |
| Simmons, James A. "Keep the scope of neuroethology broad." Behavioral and Brain Sciences, vol. 7, no. 03, 1984, pp. 400. |
| Simmons JA, Kick SA. "Physiological mechanisms for spatial filtering and image enhancement in the sonar of bats." Annual review of physiology, vol. 46, 1984, pp. 599-614. |
| Lawrence BD, Simmons JA. "Echolocation in bats: the external ear and perception of the vertical positions of targets." Science, vol. 218, no. 4571, 1982, pp. 481-3. |
| Lawrence BD, Simmons JA. "Measurements of atmospheric attenuation at ultrasonic frequencies and the significance for echolocation by bats." The Journal of the Acoustical Society of America, vol. 71, no. 3, 1982, pp. 585-90. |
| Simmons JA, Fenton MB, O'Farrell MJ. "Echolocation and pursuit of prey by bats." Science, vol. 203, no. 4375, 1979, pp. 16-21. |
| Simmons JA. "Perception of echo phase information in bat sonar." Science, vol. 204, no. 4399, 1979, pp. 1336-8. |
| Feng AS, Simmons JA, Kick SA. "Echo detection and target-ranging neurons in the auditory system of the bat Eptesicus fuscus." Science, vol. 202, no. 4368, 1978, pp. 645-8. |
| Simmons JA, Howell DJ, Suga N. "Information content of bat sonar echoes." American scientist, vol. 63, no. 2, 1975, pp. 204-15. |
| Suga N, Simmons JA, Jen PH. "Peripheral specialization for fine analysis of doppler-shifted echoes in the auditory system of the "CF-FM" bat Pteronotus parnellii." Journal of Experimental Biology, vol. 63, no. 1, 1975, pp. 161-92. |
| Suga N, Simmons JA, Shimozawa T. "Neurophysiological studies on echolocation systems in awake bats producing CF-FM orientation sounds." Journal of Experimental Biology, vol. 61, no. 2, 1974, pp. 379-99. |
| Simmons JA. "Response of the Doppler echolocation system in the bat, Rhinolophus ferrumequinum." The Journal of the Acoustical Society of America, vol. 56, no. 2, 1974, pp. 672-82. |
| Simmons JA, Lavender WA, Lavender BA, Doroshow CA, Kiefer SW, Livingston R, Scallet AC, Crowley DE. "Target structure and echo spectral discrimination by echolocating bats." Science, vol. 186, no. 4169, 1974, pp. 1130-2. |
| Simmons JA. "The resolution of target range by echolocating bats." The Journal of the Acoustical Society of America, vol. 54, no. 1, 1973, pp. 157-73. |
| Simmons JA. "Echolocation in bats: signal processing of echoes for target range." Science, vol. 171, no. 3974, 1971, pp. 925-8. |
| Simmons JA, Vernon JA. "Echolocation: discrimination of targets by the bat, Eptesicus fuscus." The Journal of experimental zoology, vol. 176, no. 3, 1971, pp. 315-28. |
| Simmons JA, Wever EG, Pylka JM. "Periodical cicada: sound production and hearing." Science, vol. 171, no. 3967, 1971, pp. 212-3. |
| Simmons JA. "The sonar receiver of the bat." Annals of the New York Academy of Sciences, vol. 188, 1971, pp. 161-74. |
| Wever EG, Herman PN, Simmons JA, Hertzler DR. "Hearing in the blackfooted penguin, spheniscus demersus, as represented by the cochlear potentials." Proceedings of the National Academy of Sciences, vol. 63, no. 3, 1969, pp. 676-80. |
| Year | Degree | Institution |
|---|---|---|
| 1969 | PhD | Princeton University |
| 1968 | MA | Princeton University |
| 1965 | BA | Lafayette College |
NIMH Research Scientist Development Award (Level II)
Elected Fellow of the Acoustical Society of America
Elected Fellow of the American Association for the Advancement of Science
Silver Medal in Animal Bioacoustics, Acoustical Society of America
Elected Fellow, International Society for Neuroethology
| NEUR 0650 - Biology of Hearing |
| NEUR 1065 - Biology of Hearing |
| NEUR 1940B - Deep Learning in Neuroethology |
| NEUR 1940B - Neuroethology |
