The Institute for Systems Research
Brain and Behavior Institute
Jonathan Simon's expertise is applied and theoretical neuroscience, with emphasis on auditory neuroscience. His research focuses on neural processing in the brain's auditory system, from specialized processing found only in humans (e.g., speech processing) to generalized processing found in most mammals, including auditory attention and sound localization.
He earned his bachelors in physics from Princeton University, his doctorate in physics from the University of California, Santa Barbara, and did postdoctoral research in theoretical general relativity (University of Wisconsin-Milwaukee, and University of Maryland-College Park) before embracing the field of neuroscience. He joined the University of Maryland's Electrical and Computer Engineering Department in 2001, the Biology Department in 2002, and the Institute for Systems Research in 2013. Simon is co-director of the KIT-Maryland Magnetoencephalography Center, and of the Computational Sensorimotor Systems Laboratory (CSSL).
My broad research goal is to understand how the auditory cortex processes complex sounds such as speech and other natural sounds. Because of my focus on speech and higher order processing, my research uses human rather than animal subjects. To non-invasively record and analyze real-time neural processing in humans, I use magnetoencephalography (MEG), because of its high temporal resolution (milliseconds), reasonable spatial resolution (millimeters), and silent operation. My primary research topics address the question of how the brain turns sound into hearing (surprisingly, the objective sounds impinging upon our ears are not very tightly linked to what we hear). Neural computations employ algorithms developed and fine-tuned by millions of years of evolution. As such the computations are typically far beyond the capability of even the most advanced computers. But by identifying, understanding, and quantitatively characterizing the computations performed by the brain, it is possible to determine those algorithms. This computational level of understanding has great potential benefits to engineering applications (e.g. auditory-based identification methods, robust speaker identification, robust speech processing) as well as to health-related applications (hearing aids and cochlear implants that would actually function well in a noisy environment). The class of neural computations that use the temporal character of the sounds being processed—those for which time plays an important role—are the primary focus of my research. This includes the neural computations employed in the processing of rhythmic sounds, e.g., speech or simple repeating patterns, and in the disentanglement of an individual rhythmic sound from other competing sounds.
Some of my main research areas are:
• Investigations of how the brain solves the “Cocktail Party” problem, i.e., how, in a crowded and noisy environment, we have the ability to hone in on a single auditory source (e.g. one person talking), while simultaneously suppressing all the remaining interfering sounds
• How the brain represents complex sounds such as human speech
• How the brain’s representations of complex sounds are built up from representations of much simpler building blocks (acoustic modulations)
• Advances in neural signal processing
• Brodbeck, C., L. E. Hong and J. Z. Simon (2018) Rapid Transformation from Auditory to Linguistic Representations of Continuous Speech, Curr Biol 28, 3976–3983. [PDF] [Daily Mail] [Eureka Alert] [Science Daily] [Neuroscience News] [Medical Xpress] [DoveMed] [Earth.com] [cnBeta][El Médico Interactivo] [Medical Xpress] [“Great Expectations” Dispatch]
• Cervantes Constantino, F. and J. Z. Simon (2018) Restoration and Efficiency of the Neural Processing of Continuous Speech are Promoted by Prior Knowledge, Front Sys Neurosci 12:56. doi: 10.3389/fnsys.2018.0005. [PDF] [Supplementary Material] [PMC]
• Miran, S., S. Akram, A. Sheikhatar, J. Z. Simon, T. Zhang and B. Babadi (2018) Real-Time Decoding of Auditory Attention from EEG via Bayesian Filtering, Conf Proc IEEE Eng Med Biol Soc. 2018:25-28. [PDF]
• Brodbeck, C., A. Presacco, S. Anderson and J. Z. Simon (2018) Over-Representation of Speech in Older Adults Originates from Early Response in Higher Order Auditory Cortex, Acta Acust united Ac 104(5), 774-777. [PDF]
• Miran, S., S. Akram, A. Sheikhatar, J. Z. Simon, T. Zhang and B. Babadi (2018) Real-Time Tracking of Selective Auditory Attention from M/EEG: A Bayesian Filtering Approach, Front Neurosci 12:262. [PDF] [Supplementary Material] [PMC]
• Vanthornhout, J., L. Decruy, J. Wouters, J. Z. Simon, and T. Francart (2018) Speech Intelligibility Predicted from Neural Entrainment of the Speech Envelope, J Assoc Res Otolaryngol 19(2) 181-191.[PDF] [PMC]
• Brodbeck, C., A. Presacco and J. Z. Simon (2018) Neural Source Dynamics of Brain Responses to Continuous Stimuli: Speech Processing from Acoustics to Comprehension, NeuroImage 172, 162–174. [PDF] [PMC]
• Puvvada, K. C., A. Summerfelt, X. Du, N. Krishna, P. Kochunov, L. M. Rowland, J. Z. Simon* and L. E. Hong* (2018) Delta Vs Gamma Auditory Steady State Synchrony in Schizophrenia, Schiz Bull 44(2), 378-387 *contributed equally [PDF] [Supplementary Information] [PMC]
• Cervantes Constantino, F. and J. Z. Simon (2017) Dynamic Cortical Representations of Perceptual Filling-In for Missing Acoustic Rhythm, Scientific Reports 7(1), 17536. [PDF] [Supplementary Information] [PMC]
• Puvvada, K. C. and J. Z. Simon (2017) Cortical Representations of Speech in a Multi-talker Auditory Scene, J Neurosci 37(38), 9189-9196. [PDF] [PMC]
• Middlebrooks, J. C., J. Z. Simon, A. N. Popper and R. R. Fay (Eds.) (2017) The Auditory System at the Cocktail Party, in the Springer Handbook of Auditory Research series, Fay, R. R., Popper, A. N. (Series Eds.) (Springer: New York), ISBN: 978-3-319-51660-8.
• Simon, J. Z. (2017) Human Auditory Neuroscience and the Cocktail Party Problem, In The Auditory System at the Cocktail Party, Springer Handbook of Auditory Research 60, Ed.: Middlebrooks, J. C., J. Z. Simon, A. N. Popper and R. R. Fay (Springer: New York) ISBN: 978-3-319-51660-8, 169-197.
• Akram, S., J. Z. Simon and B. Babadi (2017) Dynamic Estimation of the Auditory Temporal Response Function from MEG in Competing-Speaker Environments, IEEE Trans Biomed Eng, 64(8), 1896-1905. [PDF] [Supplementary Files][PMC]
• Presacco, A., J. Z. Simon and S. Anderson (2016) Effect of Informational Content of Noise on Speech Representation in the Aging Midbrain and Cortex, J Neurophysiol 116, 2356–2367. [PDF][PMC]
• Presacco, A., J. Z. Simon and S. Anderson (2016) Evidence of Degraded Representation of Speechin Noise, in the Aging Midbrain and Cortex, J Neurophysiol 116, 2346–2355. [PDF] [PMC]
[BBC Radio 4 Interview] [The Times] [Daily Mail] [Express] [Fast Company] [US News & World Report] [Deutsches Ärzteblatt] [Journal of Neurophysiology Podcast]
• Najafi, M., B. W. McMenamin, J. Z. Simon and L. Pessoa (2016) Overlapping Communities Reveal Rich Structure in Large-Scale Brain Networks During Rest and Task Conditions, NeuroImage 125, 92-106. [PDF] [PMC]
• Ding, N., J. Z. Simon, S. A. Shamma and S. V. David (2016) Encoding of Natural Sounds by Variance of the Cortical Local Field Potential, J Neurophysiol 115, 2389-2398. [PDF] [PMC]
• Senevirathna, B., L. Berman, N. Bertoni, F. Pareschi, M. Mangia, R. Rovatti, G. Setti, J. Simon and P. Abshire (2016) Low Cost Mobile EEG for Characterization of Cortical Auditory Responses, 2016 IEEE International Symposium on Circuits and Systems (ISCAS). p. 1102-1105. [PDF]
• Bertoni, N., B. Senevirathna, F. Pareschi, M. Mangia, R. Rovatti, P. Abshire, J. Z. Simon and G. Setti (2016) Low-power EEG monitor based on Compressed Sensing with Compressed Domain Noise Rejection, 2016 IEEE International Symposium on Circuits and Systems (ISCAS). p. 522-525.[PDF]
• Akram, S., A. Presacco, J. Z. Simon, S. A. Shamma and B. Babadi (2016) Robust Decoding of Selective Auditory Attention from MEG in a Competing-Speaker Environment via State-Space Modeling, NeuroImage 124, 906–917. [PDF] [PMC]
• Chait, M., S. Greenberg, T. Arai, J. Z. Simon and D. Poeppel (2015) Multi-Time Resolution Analysis of Speech: Evidence from Psychophysics, Front Neurosci 9:214. https://doi.org/10.3389/fnins.2015.00214 [PDF] [PMC]
• Simon, J. Z. (2015) The Encoding of Auditory Objects in Auditory Cortex: Insights from Magnetoencephalography, Intl J Psychophysiol 95, 184–190. [PDF] [PMC]
• Akram, S., B. Englitz, M. Elhilali, J. Z. Simon, and S. A. Shamma (2014) Investigating the Neural Correlates of a Streaming Percept in an Informational-Masking Paradigm, PLOS ONE 9(12): e114427. https://doi.org/10.1371/journal.pone.0114427 [PDF] [PMC]
• Akram, S., J. Z. Simon, S. A. Shamma and B. Babadi (2014) A State-Space Model for Decoding Auditory Attentional Modulation from MEG in a Competing-Speaker Environment, NIPS 2014 Advances in Neural Information Processing Systems 27, 460-468. [PDF]
• Ding, N. and J. Z. Simon (2014) Cortical Entrainment to Continuous Speech: Functional Roles and Interpretations, Front Hum Neurosci 8:311. https://doi.org/10.3389/fnhum.2014.00311 [PDF][PMC]
• Ding, N., M. Chatterjee and J. Z. Simon (2014) Robust Cortical Entrainment to the Speech Envelope Relies on the Spectro-temporal Fine Structure, NeuroImage 88 41–46. [PDF] [PMC]
• Ding, N. and J. Z. Simon (2013) Robust Cortical Encoding of Slow Temporal Modulations of Speech, in Basic Aspects of Hearing: Physiology and Perception, B. C. J. Moore, R. D. Patterson, I. M. Winter, R. P. Carlyon and H. E. Gockel (Eds.), (Springer Verlag: New York), ISBN: 978-1-4614-1589-3. [PDF]
• Ding, N. and J. Z. Simon (2013) Adaptive Temporal Encoding Leads to a Background Insensitive Cortical Representation of Speech, J Neurosci 33(13), 5728-5735. [PDF] [PMC]
• Ding, N. and J. Z. Simon (2013) Power and Phase Properties of Oscillatory Neural Responses in the Presence of Background Activity, J Comput Neurosci 34(2), 337-43. [PDF] [Erratum] [PMC]
• Elhilali, M., S. Shamma, J. Z. Simon and J. B. Fritz (2013) A Linear System’s View to the Concept of STRFs, in Handbook of Modern Techniques in Auditory Cortex, Depireux, D. A. and M. Elhilali, M. (Eds.), (Nova Science Publishers: New York), ISBN: 978-1-6280-8894-6.
• Zion Golumbic, E. M., N. Ding, S. Bickel, P. Lakatos, C. A. Schevon, G. M. McKhann, R. R. Goodman, R. Emerson, A. D. Mehta, J. Z. Simon, D. Poeppel, and C. E. Schroeder (2013) Mechanisms Underlying Selective Neuronal Tracking of Attended Speech at a “Cocktail Party”, Neuron, 77(5), 980-991. [PDF] [Supplemental Information] [PMC]
[“Shaken, Not Stirred” Preview] [NPR interview] [Science Magazine News]
• Xiang J., D. Poeppel, and J. Z. Simon (2013) Physiological evidence for auditory modulation filterbanks: cortical responses to concurrent modulations, JASA Express Letters 133(1), EL7-EL12.[PDF] [PMC]
• Ding, N. and J. Z. Simon (2012) The Emergence of Neural Encoding of Auditory Objects While Listening to Competing Speakers, PNAS, 109(29), 11854-11859. [PDF] [PMC]
• Wang, Y.*, N. Ding*, Ahmar N., Xiang J., Poeppel D., and J. Z. Simon (2012) Sensitivity to Temporal Modulation Rate and Spectral Bandwidth in the Human Auditory System: MEG Evidence, J Neurophysiol 107, 2033-2041. *contributed equally [PDF] [PMC]
• Ding, N. and J. Z. Simon (2012) Neural Coding of Continuous Speech in Auditory Cortex during Monaural and Dichotic Listening, J Neurophysiol 107, 78-89. [PDF] [PMC]
• Zhuo, J., S. Xu, J. Proctor, R. J. Mullins, J. Z. Simon, G. Fiskum, and R. P. Gullapalli (2012) Diffusion Kurtosis as an in vivo imaging marker for reactive astrogliosis in traumatic brain injury, NeuroImage 59(1) 467-477. [PDF] [PMC]
• Jenkins, J., III, A. E. Rhone, W. J. Idsardi, J. Z. Simon, and D. Poeppel (2011) The Elicitation of Audiovisual Steady-State Responses: Multi-Sensory Signal Congruity and Phase Effects, Brain Topogr 24(2) 134-148. [PDF] [PMC]
• Simon J. Z. and N. Ding (2010), Magnetoencephalography and Auditory Neural Representations, In Proc. Southern Biomedical Engineering Conference 2010, IFMBE Proceedings 32, K.E. Herold, W.E. Bentley, and J. Vossoughi (Eds.), 45–48. [PDF]
• Xiang J., J. Z. Simon and M. Elhilali (2010), Competing streams at the cocktail party: Exploring the mechanisms of attention and temporal integration, J Neurosci 30(36) 12084-12093. [PDF] [PMC]
• Chait, M., A. de Cheveigné, D. Poeppel and J. Z. Simon (2010) Neural dynamics of attending and ignoring in human auditory cortex, Neuropsychologia 48(11) 3262-3271. [PDF] [PMC]
• Elhilali, M., J. Xiang, S. A. Shamma and J. Z. Simon (2010) Auditory Streaming at the Cocktail Party: Simultaneous Neural and Behavioral Studies of Auditory Attention, in The Neurophysiological Bases of Auditory Perception, Lopez-Poveda, E. A., Meddis, R., and Palmer A. R. (Eds.), (Springer Verlag: New York), ISBN: 978-1441956859, 545-553. [PDF]
• Carr, C. E., D. Soares, J. Smolders and J. Z. Simon (2009), Detection of interaural time differences in the alligator, J Neurosci 29, 7948-7956. [PDF] [PMC] [Journal Cover] [Journal Cover Description]
• Elhilali, M.*, J. Xiang*, S. A. Shamma and J. Z. Simon (2009), Interaction between attention and bottom-up saliency mediates the representation of foreground and background in an auditory scene, PLoS Biol 7(6), e1000129. *contributed equally [PDF][PMC]
• Chait, M., D. Poeppel and J. Z. Simon (2008), Auditory Temporal Edge Detection in Human Auditory Cortex, Brain Research 1213,78-90. [PDF] [PMC]
• de Cheveigné, A., and J. Z. Simon (2008) Denoising based on spatial filtering, J Neurosci Methods 171(1), 331-339. [PDF] [PMC]
• Aytekin, M., C. F. Moss and J. Z. Simon (2008) A Sensorimotor Approach to Sound Localization, Neural Computation, 20, 603-635. [PDF] [Journal Cover]
• de Cheveigné, A., and J. Z. Simon (2008) Sensor Noise Suppression, J Neurosci Methods 168(1), 195-202. [PDF] [PMC]
• Luo, H., Y. Wang, D. Poeppel and J. Z. Simon (2007) Concurrent Encoding of Frequency and Amplitude Modulation in Human Auditory Cortex: An Encoding Transition, J Neurophysiology, 98, 3473-3485. [PDF]
• Chait, M., D. Poeppel, and J. Z. Simon (2007) Human Auditory Cortical Processing Of Transitions Between ‘Order’ And ‘Disorder’, in Hearing – From Sensory Processing to Perception, Kollmeier, B., Klump, G., Hohmann, V., Langemann, U., Mauermann, M., Uppenkamp, S., and Verhey, J. (Eds.), (Springer Verlag: New York) 323-331. [PDF]
• de Cheveigné, A., and J. Z. Simon (2007) Denoising Based on Time-Shift PCA, J Neurosci Methods 165(2), 297-305. [PDF] [PMC]
• Chait, M., D. Poeppel and J. Z. Simon (2007) Stimulus Context Affects Auditory Cortical Responses to Changes in Interaural Correlation, J Neurophysiol, 98, 224-231. [PDF]
• de Cheveigné, A., J. Le Roux and J.Z. Simon (2007) MEG Signal Denoising Based On Time-Shift PCA, In Proc. ICASSP 2007 International Conference on Acoustics, Speech, and Signal Processing, Vol. I, 317-320. [PDF]
• Chait, M., G. Eden, D. Poeppel, J. Z. Simon, D. F. Hill and D. L. Flowers (2007) Delayed Detection of Tonal Targets in Background Noise in Dyslexia, Brain and Language, 102, 80-90. [PDF]
• Chait, M., D. Poeppel, A. de Cheveigné and J. Z. Simon (2007), Processing Asymmetry of Transitions between Order and Disorder in Human Auditory Cortex, J Neurosci, 27, 5207-5214. [PDF]
• Chait, M. and J. Z. Simon (2007) The dynamics of the Construction of Auditory Perceptual Representations: MEG Brain Imaging in Humans, In Reasoning and Cognition Interdisciplinary Series on Reasoning Studies Vol. 2, ed. D. Andler, Y. Ogawa, M. Okada, and S. Watanabe. (Keio University Press: Tokyo), ISBN: 4-7664-1332-6, 265-280.
• Simon, J. Z., D.A. Depireux, D. J. Klein, J.B. Fritz and S.A. Shamma (2007), Temporal Symmetry in Primary Auditory Cortex: Implications for Cortical Connectivity, Neural Computation, 19, 583-638. [PDF]
• Luo, H., Y. Wang, D. Poeppel and J. Z. Simon (2006), Concurrent Encoding of Frequency and Amplitude Modulation in Human Auditory Cortex: MEG Evidence, J Neurophysiol, 96, 2712-2723. [PDF]
• Klein, D.J., J.Z. Simon, D.A. Depireux, and S.A. Shamma (2006), Stimulus-Invariant Processing and Spectrotemporal Reverse Correlation in Primary Auditory Cortex, J. Comput. Neurosci, 20(2), 111-136. [PDF]
• Chait, M. and J. Z. Simon (2006) The Dynamics of the Construction of Auditory Perceptual Representations: MEG Brain Imaging in Humans, In Reasoning and Cognition Interdisciplinary Series on Reasoning Studies Vol. 2, ed. D. Andler, Y. Ogawa, M. Okada, and S. Watanabe, 265-280.[PDF]
• Carr, C. E., S. Iyer, D. Soares, S. Kalluri and J. Z. Simon (2006), Are Neurons Adapted for Specific Computations? Examples from Temporal Coding in the Auditory System, In 23 Problems in Systems Neuroscience, ed. L. v. Hemmen and T. Sejnowski. Oxford, 245-265. [PDF]
• Simon, J. Z. and Y. Wang (2005), Fully Complex Magnetoencephalography, J Neurosci Methods 149(1), 64-73. [PDF]
• Chait, M., D. Poeppel, A. de Cheveigné and J. Z. Simon (2005), Human Auditory Cortical Processing of Changes in Interaural Correlation, J Neurosci 35(37), 8518-8527. [PDF]
• Ahmar, N., Y. Wang and J.Z. Simon (2005) Significance Tests for MEG Response Detection, Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on, 21-24. [PDF]
• Ahmar, N. and J.Z. Simon (2005), MEG Adaptive Noise Suppression using Fast LMS, Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on, 29-32. [PDF]
• Wang Y., N. Ahmar, J. Xiang, L. Ma, D. Poeppel and J.Z. Simon (2005), Complex Valued Equivalent-Current Dipole Fits for MEG Responses, Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on, 273-276. [PDF]
• Xiang, J., Y. Wang and J.Z. Simon (2005), MEG Responses to Speech and Stimuli with Speechlike Modulations, Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on, 33-36. [PDF]
• Elhilali M., Klein D., Fritz J., Simon J. and Shamma S. (2005), The Enigma of Cortical Responses: Slow Yet Precise, in Auditory signal processing: physiology, psychoacoustics, and models, Pressnitzer D., de Cheveigné A., McAdams S. and Collet L., (Springer Verlag: New York), 485-494. [PDF]
• Chait, M., J. Z. Simon and D. Poeppel (2004), Auditory M50 and M100 Responses to Broadband Noise: Functional Implications, NeuroReport 15, 2455-2458. [PDF]
• Elhilali, M., J. B. Fritz, D. J. Klein, J. Z. Simon and S. A. Shamma (2004), Dynamics of Precise Spike Timing in Primary Auditory Cortex, J Neurosci. 24, 1159-72. [PDF]
• Grau-Serrat, V., C. E. Carr and J. Z. Simon (2003), Modeling Coincidence Detection in Nucleus Laminaris, Biol Cybern. 89, 388-96. [PDF] [PMC reader]
• Simon, J. Z., S. Parameshwaran, T. Penney and C.E. Carr (2001), Temporal Coding in the Auditory Brainstem of the Barn Owl, in Physiological and Psychophysical Bases of Auditory Function, Ed.: D. J. Breebaart, A. J. M. Houtsma, A. Kohlrausch, V. F. Prijs, and R. Schoonhoven, Shaker: Maastricht. [PDF]
• Depireux D. A. , J. Z. Simon, D. J. Klein and S. A. Shamma (2001), Spectro-Temporal Response Field Characterization With Dynamic Ripples in Ferret Primary Auditory Cortex, J Neurophysiol 85,1220-1234. [PDF]
• Klein, D. J., D. A. Depireux, J. Z. Simon and S. A. Shamma (2000), Robust Spectro-Temporal Reverse Correlation for the Auditory System: Optimizing Stimulus Design, J. Comput. Neurosci. 9, 85-111. [PDF]
• Kanlis N. A., J. Z. Simon, and S. A. Shamma (2000), Complete training analysis of feedback architecture networks that perform blind source separation and deconvolution, In Proc. Independent Component Analysis and Blind Signal Separation Workshop, ICA 2000, 139-144. [PDF]
• Simon, J. Z., C. E. Carr and S. A. Shamma (1999), A Dendritic Model of Coincidence Detection in the Avian Brainstem, Neurocomputing 26-27, 263-269. [PDF]
• Depireux, D. A., P. Ru, S. A. Shamma and J. Z. Simon (1998), Response-Field Dynamics in the Auditory Pathway, In Computational Neuroscience: Trends in Research, Ed: James M. Bower (Elsevier: Amsterdam) 263-270. [PDF]
• Depireux, D. A., J. Z. Simon and S. A. Shamma (1998), Measuring the Dynamics of Neural Responses in Primary Auditory Cortex, Comments Theor. Biol. 5, 89-118. [PDF]
• Simon, J. Z., D. A. Depireux and S. A. Shamma, (1998), Representation of Complex Dynamic Spectra in Auditory Cortex. In Psychophysical and Physiological Advances in Hearing. Ed.: A. R. Palmer, A. Rees, A.Q. Summerfield, and R. Meddis (Whurr: London) 513-520. [PDF]
• Brodbeck, C., L. E. Hong and J. Z. Simon (2018) Transformation from Auditory to Linguistic Representations across Auditory Cortex is Rapid and Attention Dependent for Continuous Speech, bioRxiv 326785. http://dx.doi.org/10.1101/326785
• Cervantes Constantino, F. and J. Z. Simon (2018) Dynamic Neural Representation of Missing Speech and the Influence of Prior Knowledge on Cortical Fidelity and Latency, bioRxiv 251793. https://doi.org/10.1101/251793
• Brodbeck, C., A. Presacco, S. Anderson and J. Z. Simon (2018) Increased Speech Representation in Older Adults Originates from Early Response in Higher Order Auditory Cortex, bioRxiv 294017. https://doi.org/10.1101/294017
• Vanthornhout, J., L. Decruy, J. Wouters, J. Z. Simon, and T. Francart (2018) Speech Intelligibility Predicted from Neural Entrainment of the Speech Envelope, bioRxiv 246660. https://doi.org/10.1101/246660
• Miran, S., S. Akram, A. Sheikhatar, J. Z. Simon, T. Zhang and B. Babadi (2017) Real-Time Tracking of Selective Auditory Attention from M/EEG: A Bayesian Filtering Approach, bioRxiv 222661. https://doi.org/10.1101/222661
• Brodbeck, C., A. Presacco and J. Z. Simon (2017) Neural Source Dynamics of Brain Responses to Continuous Stimuli: Speech Processing from Acoustics to Comprehension, bioRxiv 182881. https://doi.org/10.1101/182881
• Cervantes Constantino, F. and J. Z. Simon (2017) Dynamic Cortical Representations of Perceptual Filling-In for Missing Acoustic Rhythm, bioRxiv 165332. https://doi.org/10.1101/165332
• Puvvada, K. C. and J. Z. Simon (2017) Cortical Representations of Speech in a Multi-talker Auditory Scene, bioRxiv 124750. https://doi.org/10.1101/124750
• Jorma Louko, Jonathan Z. Simon, Stephen N. Winters-Hilt, Hamiltonian Thermodynamics of a Lovelock Black Hole, Phys. Rev. D 55 3525 (1997). [PDF]
• Leonard Parker and Jonathan Z. Simon, Einstein Equations with Quantum Corrections Reduced to Second Order , Phys. Rev. D 47, 1339 (1993). [PDF]
• John L. Friedman, N. J. Papastamatiou, and Jonathan Z. Simon, Failure of Unitarity for Interacting Fields on Spacetimes with Closed Timelike Curves, Phys. Rev. D 46, 4456 (1992). [PDF]
• John L. Friedman, N. J. Papastamatiou, and Jonathan Z. Simon, Unitarity of Interacting Fields in Curved Spacetime, Phys. Rev. D 46, 4442 (1992). [PDF]
• Jonathan Z. Simon, No Starobinsky Inflation From Self-Consistent Semiclassical Gravity, Phys. Rev. D 45, 1953 (1992). [PDF]
• Jonathan Z. Simon, Stability of Flat Space, Semiclassical Gravity, and Higher Derivatives, Phys. Rev. D 43, 3308 (1991). [PDF]
• Jonathan Z. Simon, Higher-derivative Lagrangians, Nonlocality, Problems, and Solutions, Phys. Rev. D 41, 3720 (1990). [PDF]
• Robert C. Myers and Jonathan Z. Simon, Black Hole Evaporation and Higher-Derivative Gravity, Gen. Rel. Grav. 21, 761 (1989). [PDF]
• Robert C. Myers and Jonathan Z. Simon, Black-hole Thermodynamics in Lovelock Gravity, Phys. Rev. D 35, 2434 (1988). [PDF]
• J. Richard Gott III, Jonathan Z. Simon, and Mark Alpert, General Relativity in a (2+1)-Dimensional Space-Time: An Electrically Charged Solution, Gen. Rel. Grav. 18, 1019 (1986). [PDF]
• Jonathan Simon, Learning Physics From Science Fiction, Physics World 11:1, 52 (1998). [PDF]
• Jonathan Z. Simon, The Physics of Time Travel, Physics World 7:12, 27 (1994). [PDF] [Journal Cover]
• Bruce Allen and Jonathan Simon, Time Travel on a String, Nature 357, 19 (1992). [PDF]
Live Searches for Simon publications
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ECE Junior Tejas Guha published as first author in eLife JournalArticle discusses creating accessible visualizations in bioinformatics research
Discovering a digital biomarker for post-stroke cognitive problemsFunding for a noninvasive, inexpensive screening tool that could predict persistent post-stroke cognitive difficulties.
2023 BBI Seed Grants Inspire New Interdisciplinary CollaborationsThe six interdisciplinary teams will use state-of-the-art neuroscience tools to translate basic science research into real-world impact.
Jonathan Simon Awarded $149,000 Seed GrantStudy will address auditory issues in aging and bilingual populations
Giving back: New solar panels support a local urban farmClark School staff, students and faculty help historic Silver Spring produce farm become more sustainable.
New robust and scalable computational methodology developed by UMD researchers helps identify directed connectivity within the brain‘NLGC’ can be used with magnetoencephalography to better understand the neural mechanisms behind sensory processing.
Jonathan Simon gives keynote address at international cognitive hearing science conferenceSimon spoke on “The progression of neural speech representations through auditory cortex and beyond, from acoustics to semantics.”
Congratulations to our December 2021 ISR graduates!ISR advisors graduated 22 Ph.D., 2 M.S., and 4 M.S.S.E. new alumni in December!
How does the brain turn heard sounds into comprehensible language?$2.88M in NIH funding could lead to brain-aware, tunable hearing devices.
The brain makes sense of math and language in different waysDistinct regions in the brain use their own neural pathways and networks to process either spoken math or language.
Seven Students Win 2021 Dean's Research AwardsFrom fabricated human tissue to Wifi beamed from space, awards recognize cutting-edge research
NIH grant furthers poststroke recovery research of Marsh, SimonMEG scans will help determine the neurophysiologic effects of mindfulness training on subacute post-stroke depression and cognition.
Congratulations, May 2021 ISR graduates!Institute for Systems Research faculty advised PhD, MS, BS and 12 MSSE students who graduated in May 2021.
ECE Names 2020-2021 Distinguished Dissertation FellowsThe fellowships are awarded to outstanding students in the final stages of dissertation work in recognition of their research excellence.
Emerging from the fog: Little understood post-stroke cognitive issues verifiedFor the first time, researchers measure the physical evidence of diminished neural processing within the brain after a stroke.
Fu, Marcus team for new AFOSR project on simulation optimizationSimulation optimization aims to guide planning and decision making under uncertainty in complex dynamic settings.
New algorithms for estimating the latent dynamics underlying biological processesWork by Miran, Presacco, Babadi, Simon, Fu and Marcus published in PLOS Computational Biology.
Behtash Babadi promoted to associate professorBabadi has broad research interests in statistical and adaptive signal processing, neural signal processing, and systems neuroscience.
Fast estimation algorithm aids investigations of the cortical origins of underlying neural processesDas, Brodbeck, Simon and Babadi estimate a linear filter representation of cortical sources directly from neuroimaging data in the context of continuous speech processing.
Brain and Behavior Initiative Hosts 3rd Annual Seed Grant Symposium
AESoP symposium features speakers, organizers with UMD tiesThe symposium highlights research on hearing, speech and language that makes use of novel EEG or MEG signal processing.
Simon invited speaker at implantable auditory prostheses conferenceSimon spoke on how EEG and MEG successes may lead to neurophysiologically based speech perception measures.
Simon, Lau to investigate neural bases of natural language understanding“Neural representations of continuous speech and linguistic context in native and non-native listeners” is one of six FY19 seed grants newly issued by the University of Maryland's Brain and Behavior Initiative.
BBI Announces FY19 Seed Grant AwardsAwarded proposals feature researchers from seven colleges and schools as well as three centers and institutes
UMD Invention of the Year Nominees Push Limits in Cybersecurity, Health, Quantum Computing, and MoreCampus Innovators to be Honored at 2019 Innovate Maryland event
Radio interview with Jonathan Simon on "the cocktail party problem"BYUradio talks to Simon about where in the brain, and how quickly, neurons transition from processing the sound of speech to the language-based words of speech.
Stop—hey, what’s that sound?New Maryland study explores how the sounds going into our ears become the words going through our brains.
Brain and Behavior Initiative (BBI) hosts Second Annual Seed Grant SymposiumThe University’s Brain and Behavior Initiative (BBI) hosted its Second Annual Seed Grant Symposium on November 14, 2018 at Adele’s in the Stamp Student Union.
Simon, Abshire, Elhilali give invited talksThe talks were given in Belgium and Spain.
Maryland researchers awarded $1M DARPA Lagrange program cooperative agreementMarcus, Fu, Simon and Babadi will build a scalable, risk-sensitive and real time optimization framework tailored to noninvasive neuroimaging data from the human brain.
Improving speech intelligibility testing with new EEG methodsTests developed at KU Leuven and the University of Maryland could result in better diagnoses for patients with speech comprehension issues.
Pamela Abshire elected IEEE FellowAbshire was selected for her contribution to CMOS biosensors.
Five ISR faculty part of $8 million NIH grant to combat hearing loss in older peopleMultidisciplinary research will examine strategies to improve communication challenges.
BBI Holds 2017 Seed Grant SymposiumOver 115 people attend symposium featuring work and accomplishments of BBI Seed Grant Awardees for FY16/FY17.
Researchers part of two NSF Neural & Cognitive Systems grants worth more than $1.2 millionThe NSF awards have been issued to U.S. cross-disciplinary teams to conduct innovative research focused on neural and cognitive systems.
ISR researchers win additional $948K NSF Neural and Cognitive Systems grantISR researchers Cynthia Moss and Susanne Sterbing-D'Angelo, along with alumna Mounya Elhilali and their colleague Rajit Mittal, will conduct the research at Johns Hopkins University.
BBI FY17 Seed Grant Winners AnnouncedNine projects selected for funding.
ECE Names 2016-2017 Distinguished Dissertation FellowsFive Electrical and Computer Engineering Ph.D. students were selected as ECE Distinguished Dissertation Fellows for 2016-17.
Simon is co-editor of new Springer auditory research bookThe Auditory System at the Cocktail Party describes the mechanisms the auditory system employs to focus on specific sounds within a noisy environment.
NSF Science Now video features 'aging brain' research of Anderson, Simon and PresaccoStudy is part of ongoing research into the so-called 'cocktail party problem.'
It’s not your ears, it’s your brainUMD neuroscience research shows older adults’ brain processing contributes to diminished speech comprehension, even with normal hearing.
Simon delivers three invited lectures in ChinaSimon explained research into how continuous speech is represented in the human auditory cortex.
Christian Brodbeck joins ISR as postdocBrodbeck recently completed his Ph.D. at New York University.
Jonathan Simon gives keynote speech at SPIRE workshopSimon spoke on “Neural Representations of Speech, and Speech in Noise, in Human Auditory Cortex.”
Jonathan Simon is invited speaker at Paris Workshop on Decoding of Sound and BrainAlumna Mounya Elhilali also was a presenter.
Jonathan Simon is invited lecturer at Cold Spring Harbor Laboratory summer courseSimon lectured in the 'neural science data' course.
Jonathan Simon is invited speaker at CHScom 2015Professor speaks on "Neural Representations of the Cocktail Party in Human Auditory Cortex.”
Jonathan Simon wins $1.5M NIH NIDCD grant for 'auditory scene' researchResearch will further understanding of how people focus on sounds in a noisy environment.
Six ISR Ph.D. students selected as Future Faculty FellowsProgram prepares students for academic careers in top-50 engineering schools.
Jonathan Simon and UMB's Elliot Hong win Research and Innovation Seed GrantThe pair will investigate neural processing in schizophrenia patients with auditory hallucinations.
Clark School Faculty Promotions AnnouncedFaculty promoted to full professor, associate professor with tenure.
Presacco, Heffner, Smith to represent Maryland at Universitas 21UMD Graduate School travel fellowship funds trip to the international graduate research conference.
Jonathan Simon promoted to full professorSimon's research focuses on neural processing in the brain's auditory system.
Simon and Alumnus Ding Publish Research in NeuroImageJonathan Simon and his former advisee Nai Ding examined speech entrainment in the auditory cortex.
Simon, Ding, Chatterjee publish paper in NeuroImageResearch explores how brains extract and process speech in noisy conditions.
‘Cocktail party effect’ helps us focus in noisy environmentsNew research published in Neuron shows cooperation among brain's neural responses.
Simon is invited speaker at otolaryngology meetingHe will speak on 'cortical encoding of auditory objects at the cocktail party.'
Simon, Ding publish auditory cortex research in PNASResearch addresses the neural underpinnings of auditory scene analysis.
Jonathan Simon selected for National Academies' NAKFI conferenceConference focuses neuroscience on challenges and opportunities of the digitally connected world.
Seven ECE Students Named Future Faculty FellowsPh.D. students chosen to participate in Clark School program designed to prepare future professors.
Jonathan Simon lead author of article published in PLoS BiologyResearch focuses on the cognitive process of attention in a complex auditory scene.
Simon Co-Authors Cover Article for Journal of NeuroscienceResearchers discover that portions of alligators' auditory brainstems share similarities with birds.
ISR awards ceremony honors faculty, graduate student, staff memberFive individuals honored for outstanding contributions in 2008–2009.
Abshire, Cukier, Simon earn tenureThe three ISR faculty members are promoted to the rank of Associate Professor.
Aytekin, Moss, Simon author Neural Computation cover storyTrio writes on "A Sensorimotor Approach to Sound Localization."
Simon Receives NIH Grant for Auditory Cortex ResearchGrant worth $1.2 million over five years will fund research on how sounds are encoded in the brain.
ECE Student Xiang Wins Award at BioScience DayJuanjuan Xiang, advised by Prof. Jonathan Simon, won best poster in the neuroscience category.
ISR faculty host CRCNS Principal Investigators' MeetingEvent at University of Maryland draws 130 participants.
Shamma, Simon, Fritz receive five-year, $1.57 million NIH grantResearch to focus on neural correlates of streaming of complex sounds
Simon research featured on Cerebral Cortex coverMEG-psychophysical study impresses respected, selective journal
Moss is PI for "Innovative Technologies Inspired by Biosonar"Research will study transformation of sensory information to motor commands for adaptive behaviors.
- BBI Seed Grant: Toward a non-linguistic measure of auditory processing deficits in older and younger monolingual and bilingual adults
- NIH: Digital Biomarkers for Vascular Cognitive Decline in Patients with Minor Stroke
- NIH: Mindfulness Matters: The Impact of Mindfulness Based Stress Reduction on Post-Stroke Cognition
- NIH: Multilevel Auditory Processing of Continuous Speech, from Acoustics to Language
- DARPA: An Optimization-based Approach to Breaking the Neural Code
- NSF NCS: Extracting Functional Cortical Network Dynamics at High Spatiotemporal Resolution
- NIH NIA: Methods to address hearing loss and communication challenges in older people
- BBI Seed Grant: Dance and EEG: Neural correlates of expressive movement
- NIH NIDCD: Auditory Scene Analysis and Temporal Cortical Computations
- UMD Research and Innovation Seed Grant: Temporal Auditory Coding in Schizophrenia and Treatment-Resistant Auditory Hallucination
- Efficient Sensing in Biosystems
- Brain Responses to Continuous Speech with MEG: Acoustics to Comprehension
- A sate-space model for decoding auditory attentional modulation from MEG in a competing-speaker environment
- How the brain processes speech in noise: Solving the cocktail party problem
- Neural Systems Laboratory
- Neural Computations in the Auditory Brain
- Foreground and Background at the Cocktail Party: Interaction between Attention and Auditory Pop-Out
- Foreground and background at the cocktail party: A neural and behavioral study of top-down and bottom-up auditory attention
- Application of Independent Component Analysis on Magnetoencephalograph (MEG)
- Periodic Noise Suppression for MEG Signals
- Magnetoencephalography at UMCP