Sign in to edit your profile (add interests, mentoring, photo, etc.)

    Srikantan Nagarajan, PhD

    TitleProfessor
    SchoolUCSF School of Medicine
    DepartmentRadiology
    Address521 Parnassus Ave, Clinic Sci
    San Francisco CA 94143
    Phone415-476-4982

       Biography 
       Awards and Honors
      Academy of Radiology Research2013Distinguished Researcher
      NeuroImage2012Editor’s Choice Award
      National Institutes of Health 1997 - 1999Fellowship Award

       Overview 
       Overview
      Srikantan Nagarajan, PhD, is a Professor in Residence, Director of the Biomagnetic Imaging Laboratory, and Co-Director of the Brain Research Interest Group in the Department of Radiology and Biomedical Imaging at the University of California, San Francisco. He also has an appointment in the Department of Bioengineering and Therapeutic Sciences at UCSF. He also is an active member in the UCB-UCSF Graduate Program in Bioengineering and serves on the Executive Committee.

      Dr. Nagarajan’s research interests focuses on understanding brain plasticity associated with learning, and determining neural mechanisms of auditory feedback processing during speech motor control and developing novel and power algorithms of functional imaging of brain activity, brain connectivity and brain computer interfaces.

      Dr. Nagarajan has served as Principal Investigator and Co-Principal Investigator on several NIH research grants. He has over 100 published articles and he has written 39 peer-reviewed manuscripts. He is a co-author of Adaptive Spatial Filters for Electromagnetic Brain Imaging (Springer; 2008).

      Expertise:
      Biomedical Engineering

      Specialty:
      Neural mechanisms of brain plasticity, sensorimotor learning, speech motor control

      Professional Interests:
      Functional brain imaging, machine learning, probabilistic and graphical models, statistical signal processing, magneto encephalography (MEG), electroencephalography (EEG), electrocorticography (ECoG), functional magnetic resonance imaging (fMRI), brain computer interfaces (BCI), cortical electrophysiology, cortical plasticity, perceptual learning, speech perception, speech production, auditory feedback, sensorimotor control, consciousness, psychophysics, computational models

      Education and Training:
      Dr. Nagarajan obtained his BE in Electrical Engineering at the University of Madras, India, and he completed his MS in Biomedical Engineering from Case Western Reserve University in Cleveland, Ohio. Dr. Nagarajan received his PhD in Biomedical Engineering from Case Western Reserve University in Cleveland, followed by a postdoctoral fellowship from UCSF.

       Interests
      Functional brain imaging, machine learning, probabilistic and graphical models, statistical signal processing, magneto encephalography (MEG), electroencephalography (EEG), electrocorticography (ECoG), functional magnetic resonance imaging (fMRI), brain computer interfaces (BCI), cortical electrophysiology, cortical plasticity, perceptual learning, speech perception, speech production, auditory feedback, sensorimotor control, consciousness, psychophysics, computational models.

       ORNG Applications 
       Websites
       In The News
       Awarded Grants
       More Info

       Bibliographic 
       Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
      List All   |   Timeline
      1. Qureshi AY, Mueller S, Snyder AZ, Mukherjee P, Berman JI, Roberts TP, Nagarajan SS, Spiro JE, Chung WK, Sherr EH, Buckner RL. Opposing brain differences in 16p11.2 deletion and duplication carriers. J Neurosci. 2014 Aug 20; 34(34):11199-211.
        View in: PubMed
      2. Qureshi AY, Mueller S, Snyder AZ, Mukherjee P, Berman JI, Roberts TP, Nagarajan SS, Spiro JE, Chung WK, Sherr EH, Buckner RL. Opposing brain differences in 16p11.2 deletion and duplication carriers. J Neurosci. 2014 Aug 20; 34(34):11199-211.
        View in: PubMed
      3. Ranasinghe KG, Hinkley LB, Beagle AJ, Mizuiri D, Dowling AF, Honma SM, Finucane MM, Scherling C, Miller BL, Nagarajan SS, Vossel KA. Regional functional connectivity predicts distinct cognitive impairments in Alzheimer's disease spectrum. Neuroimage Clin. 2014; 5:385-95.
        View in: PubMed
      4. Krieg SM, Tarapore PE, Picht T, Tanigawa N, Houde J, Sollmann N, Meyer B, Vajkoczy P, Berger MS, Ringel F, Nagarajan S. Optimal timing of pulse onset for language mapping with navigated repetitive transcranial magnetic stimulation. Neuroimage. 2014 Jun 17; 100C:219-236.
        View in: PubMed
      5. Subramaniam K, Luks TL, Garrett C, Chung C, Fisher M, Nagarajan S, Vinogradov S. Intensive cognitive training in schizophrenia enhances working memory and associated prefrontal cortical efficiency in a manner that drives long-term functional gains. Neuroimage. 2014 Oct; 99:281-92.
        View in: PubMed
      6. Owen JP, Chang YS, Pojman NJ, Bukshpun P, Wakahiro ML, Marco EJ, Berman JI, Spiro JE, Chung WK, Buckner RL, Roberts TP, Nagarajan SS, Sherr EH, Mukherjee P. Aberrant white matter microstructure in children with 16p11.2 deletions. J Neurosci. 2014 Apr 30; 34(18):6214-23.
        View in: PubMed
      7. Owen JP, Li YO, Yang FG, Shetty C, Bukshpun P, Vora S, Wakahiro M, Hinkley LB, Nagarajan SS, Sherr EH, Mukherjee P. Resting-state networks and the functional connectome of the human brain in agenesis of the corpus callosum. Brain Connect. 2013; 3(6):547-62.
        View in: PubMed
      8. Hinkley LB, Sekihara K, Owen JP, Westlake KP, Byl NN, Nagarajan SS. Complex-value coherence mapping reveals novel abnormal resting-state functional connectivity networks in task-specific focal hand dystonia. Front Neurol. 2013; 4:149.
        View in: PubMed
      9. Niziolek CA, Nagarajan SS, Houde JF. What does motor efference copy represent? Evidence from speech production. J Neurosci. 2013 Oct 9; 33(41):16110-6.
        View in: PubMed
      10. Kort NS, Nagarajan SS, Houde JF. A bilateral cortical network responds to pitch perturbations in speech feedback. Neuroimage. 2014 Feb 1; 86:525-35.
        View in: PubMed
      11. Byl NN, Abrams GM, Pitsch E, Fedulow I, Kim H, Simkins M, Nagarajan S, Rosen J. Chronic stroke survivors achieve comparable outcomes following virtual task specific repetitive training guided by a wearable robotic orthosis (UL-EXO7) and actual task specific repetitive training guided by a physical therapist. J Hand Ther. 2013 Oct-Dec; 26(4):343-52; quiz 352.
        View in: PubMed
      12. Tarapore PE, Findlay AM, Honma SM, Mizuiri D, Houde JF, Berger MS, Nagarajan SS. Language mapping with navigated repetitive TMS: proof of technique and validation. Neuroimage. 2013 Nov 15; 82:260-72.
        View in: PubMed
      13. Vinogradov S, Fisher M, Nagarajan S. Cognitive training in schizophrenia: golden age or wild west? Biol Psychiatry. 2013 May 15; 73(10):935-7.
        View in: PubMed
      14. Lau YC, Hinkley LB, Bukshpun P, Strominger ZA, Wakahiro ML, Baron-Cohen S, Allison C, Auyeung B, Jeremy RJ, Nagarajan SS, Sherr EH, Marco EJ. Autism traits in individuals with agenesis of the corpus callosum. J Autism Dev Disord. 2013 May; 43(5):1106-18.
        View in: PubMed
      15. Tarapore PE, Findlay AM, Lahue SC, Lee H, Honma SM, Mizuiri D, Luks TL, Manley GT, Nagarajan SS, Mukherjee P. Resting state magnetoencephalography functional connectivity in traumatic brain injury. J Neurosurg. 2013 Jun; 118(6):1306-16.
        View in: PubMed
      16. Herman AB, Houde JF, Vinogradov S, Nagarajan SS. Parsing the phonological loop: activation timing in the dorsal speech stream determines accuracy in speech reproduction. J Neurosci. 2013 Mar 27; 33(13):5439-53.
        View in: PubMed
      17. Chang EF, Niziolek CA, Knight RT, Nagarajan SS, Houde JF. Human cortical sensorimotor network underlying feedback control of vocal pitch. Proc Natl Acad Sci U S A. 2013 Feb 12; 110(7):2653-8.
        View in: PubMed
      18. Sekihara K, Nagarajan SS. Residual coherence and residual envelope correlation in MEG/EEG source-space connectivity analysis. Conf Proc IEEE Eng Med Biol Soc. 2013; 2013:4414-7.
        View in: PubMed
      19. Owen JP, Sekihara K, Nagarajan SS. Non-parametric statistical thresholding for sparse magnetoencephalography source reconstructions. Front Neurosci. 2012; 6:186.
        View in: PubMed
      20. Hinkley LB, Dolberg R, Honma S, Findlay A, Byl NN, Nagarajan SS. Aberrant Oscillatory Activity during Simple Movement in Task-Specific Focal Hand Dystonia. Front Neurol. 2012; 3:165.
        View in: PubMed
      21. Tarapore PE, Martino J, Guggisberg AG, Owen J, Honma SM, Findlay A, Berger MS, Kirsch HE, Nagarajan SS. Magnetoencephalographic imaging of resting-state functional connectivity predicts postsurgical neurological outcome in brain gliomas. Neurosurgery. 2012 Nov; 71(5):1012-22.
        View in: PubMed
      22. Marco EJ, Khatibi K, Hill SS, Siegel B, Arroyo MS, Dowling AF, Neuhaus JM, Sherr EH, Hinkley LN, Nagarajan SS. Children with autism show reduced somatosensory response: an MEG study. Autism Res. 2012 Oct; 5(5):340-51.
        View in: PubMed
      23. Hinkley LB, Marco EJ, Findlay AM, Honma S, Jeremy RJ, Strominger Z, Bukshpun P, Wakahiro M, Brown WS, Paul LK, Barkovich AJ, Mukherjee P, Nagarajan SS, Sherr EH. The role of corpus callosum development in functional connectivity and cognitive processing. PLoS One. 2012; 7(8):e39804.
        View in: PubMed
      24. Westlake KP, Hinkley LB, Bucci M, Guggisberg AG, Byl N, Findlay AM, Henry RG, Nagarajan SS. Resting state a-band functional connectivity and recovery after stroke. Exp Neurol. 2012 Sep; 237(1):160-9.
        View in: PubMed
      25. Tarapore PE, Tate MC, Findlay AM, Honma SM, Mizuiri D, Berger MS, Nagarajan SS. Preoperative multimodal motor mapping: a comparison of magnetoencephalography imaging, navigated transcranial magnetic stimulation, and direct cortical stimulation. J Neurosurg. 2012 Aug; 117(2):354-62.
        View in: PubMed
      26. Findlay AM, Ambrose JB, Cahn-Weiner DA, Houde JF, Honma S, Hinkley LB, Berger MS, Nagarajan SS, Kirsch HE. Dynamics of hemispheric dominance for language assessed by magnetoencephalographic imaging. Ann Neurol. 2012 May; 71(5):668-86.
        View in: PubMed
      27. Nagarajan S, Chandra RV. Perception of oral health related quality of life (OHQoL-UK) among periodontal risk patients before and after periodontal therapy. Community Dent Health. 2012 Mar; 29(1):90-4.
        View in: PubMed
      28. Subramaniam K, Luks TL, Fisher M, Simpson GV, Nagarajan S, Vinogradov S. Computerized cognitive training restores neural activity within the reality monitoring network in schizophrenia. Neuron. 2012 Feb 23; 73(4):842-53.
        View in: PubMed
      29. Owen JP, Wipf DP, Attias HT, Sekihara K, Nagarajan SS. Performance evaluation of the Champagne source reconstruction algorithm on simulated and real M/EEG data. Neuroimage. 2012 Mar; 60(1):305-23.
        View in: PubMed
      30. Houde JF, Nagarajan SS. Speech production as state feedback control. Front Hum Neurosci. 2011; 5:82.
        View in: PubMed
      31. Hinkley LB, Vinogradov S, Guggisberg AG, Fisher M, Findlay AM, Nagarajan SS. Clinical symptoms and alpha band resting-state functional connectivity imaging in patients with schizophrenia: implications for novel approaches to treatment. Biol Psychiatry. 2011 Dec 15; 70(12):1134-42.
        View in: PubMed
      32. Sekihara K, Owen JP, Trisno S, Nagarajan SS. Removal of spurious coherence in MEG source-space coherence analysis. IEEE Trans Biomed Eng. 2011 Nov; 58(11):3121-9.
        View in: PubMed
      33. Dolberg R, Hinkley LB, Honma S, Zhu Z, Findlay AM, Byl NN, Nagarajan SS. Amplitude and timing of somatosensory cortex activity in task-specific focal hand dystonia. Clin Neurophysiol. 2011 Dec; 122(12):2441-51.
        View in: PubMed
      34. Marco EJ, Hinkley LB, Hill SS, Nagarajan SS. Sensory processing in autism: a review of neurophysiologic findings. Pediatr Res. 2011 May; 69(5 Pt 2):48R-54R.
        View in: PubMed
      35. Guggisberg AG, Dalal SS, Schnider A, Nagarajan SS. The neural basis of event-time introspection. Conscious Cogn. 2011 Dec; 20(4):1899-915.
        View in: PubMed
      36. Westlake KP, Nagarajan SS. Functional connectivity in relation to motor performance and recovery after stroke. Front Syst Neurosci. 2011; 5:8.
        View in: PubMed
      37. Dalal SS, Zumer JM, Guggisberg AG, Trumpis M, Wong DD, Sekihara K, Nagarajan SS. MEG/EEG source reconstruction, statistical evaluation, and visualization with NUTMEG. Comput Intell Neurosci. 2011; 2011:758973.
        View in: PubMed
      38. Martino J, Honma SM, Findlay AM, Guggisberg AG, Owen JP, Kirsch HE, Berger MS, Nagarajan SS. Resting functional connectivity in patients with brain tumors in eloquent areas. Ann Neurol. 2011 Mar; 69(3):521-32.
        View in: PubMed
      39. Brookes MJ, Hale JR, Zumer JM, Stevenson CM, Francis ST, Barnes GR, Owen JP, Morris PG, Nagarajan SS. Measuring functional connectivity using MEG: methodology and comparison with fcMRI. Neuroimage. 2011 Jun 1; 56(3):1082-104.
        View in: PubMed
      40. Hinkley LB, Owen JP, Fisher M, Findlay AM, Vinogradov S, Nagarajan SS. Cognitive Impairments in Schizophrenia as Assessed Through Activation and Connectivity Measures of Magnetoencephalography (MEG) Data. Front Hum Neurosci. 2010; 3:73.
        View in: PubMed
      41. Hinkley LB, Nagarajan SS, Dalal SS, Guggisberg AG, Disbrow EA. Cortical temporal dynamics of visually guided behavior. Cereb Cortex. 2011 Mar; 21(3):519-29.
        View in: PubMed
      42. Zumer JM, Nagarajan SS, Krubitzer LA, Zhu Z, Turner RS, Disbrow EA. MEG in the macaque monkey and human: distinguishing cortical fields in space and time. Brain Res. 2010 Jul 23; 1345:110-24.
        View in: PubMed
      43. Chang EF, Edwards E, Nagarajan SS, Fogelson N, Dalal SS, Canolty RT, Kirsch HE, Barbaro NM, Knight RT. Cortical spatio-temporal dynamics underlying phonological target detection in humans. J Cogn Neurosci. 2011 Jun; 23(6):1437-46.
        View in: PubMed
      44. Wipf DP and Nagarajan SS. Journal of Selected Topics in Signal Processing (Special Issue on Compressive Sensing). Iterative Reweighted L1 and L2 and Methods for Finding Sparse Solutions. 2010; 2(4).
      45. Wu JY, Salamon N, Kirsch HE, Mantle MM, Nagarajan SS, Kurelowech L, Aung MH, Sankar R, Shields WD, Mathern GW. Noninvasive testing, early surgery, and seizure freedom in tuberous sclerosis complex. Neurology. 2010 Feb 2; 74(5):392-8.
        View in: PubMed
      46. Kaiboriboon K, Nagarajan S, Mantle M, Kirsch HE. Interictal MEG/MSI in intractable mesial temporal lobe epilepsy: spike yield and characterization. Clin Neurophysiol. 2010 Mar; 121(3):325-31.
        View in: PubMed
      47. Edwards E, Nagarajan SS, Dalal SS, Canolty RT, Kirsch HE, Barbaro NM, Knight RT. Spatiotemporal imaging of cortical activation during verb generation and picture naming. Neuroimage. 2010 Mar; 50(1):291-301.
        View in: PubMed
      48. Chang EF, Nagarajan SS, Mantle M, Barbaro NM, Kirsch HE. Magnetic source imaging for the surgical evaluation of electroencephalography-confirmed secondary bilateral synchrony in intractable epilepsy. J Neurosurg. 2009 Dec; 111(6):1248-56.
        View in: PubMed
      49. Dale CL, Findlay AM, Adcock RA, Vertinski M, Fisher M, Genevsky A, Aldebot S, Subramaniam K, Luks TL, Simpson GV, Nagarajan SS, Vinogradov S. Timing is everything: neural response dynamics during syllable processing and its relation to higher-order cognition in schizophrenia and healthy comparison subjects. Int J Psychophysiol. 2010 Feb; 75(2):183-93.
        View in: PubMed
      50. Adcock RA, Dale C, Fisher M, Aldebot S, Genevsky A, Simpson GV, Nagarajan S, Vinogradov S. When top-down meets bottom-up: auditory training enhances verbal memory in schizophrenia. Schizophr Bull. 2009 Nov; 35(6):1132-41.
        View in: PubMed
      51. Hild KE, Nagarajan SS. Source localization of EEG/MEG data by correlating columns of ICA and lead field matrices. IEEE Trans Biomed Eng. 2009 Nov; 56(11):2619-26.
        View in: PubMed
      52. Wipf DP, Owen JP, Attias HT, Sekihara K, Nagarajan SS. Robust Bayesian estimation of the location, orientation, and time course of multiple correlated neural sources using MEG. Neuroimage. 2010 Jan 1; 49(1):641-55.
        View in: PubMed
      53. Ventura MI, Nagarajan SS, Houde JF. Speech target modulates speaking induced suppression in auditory cortex. BMC Neurosci. 2009; 10:58.
        View in: PubMed
      54. Edwards E, Soltani M, Kim W, Dalal SS, Nagarajan SS, Berger MS, Knight RT. Comparison of time-frequency responses and the event-related potential to auditory speech stimuli in human cortex. J Neurophysiol. 2009 Jul; 102(1):377-86.
        View in: PubMed
      55. Aliu SO, Houde JF, Nagarajan SS. Motor-induced suppression of the auditory cortex. J Cogn Neurosci. 2009 Apr; 21(4):791-802.
        View in: PubMed
      56. Hinkley LB, Webster RL, Byl NN, Nagarajan SS. Neuroimaging characteristics of patients with focal hand dystonia. J Hand Ther. 2009 Apr-Jun; 22(2):125-34; quiz 135.
        View in: PubMed
      57. Zhu Z, Zumer JM, Lowenthal ME, Padberg J, Recanzone GH, Krubitzer LA, Nagarajan SS, Disbrow EA. The relationship between magnetic and electrophysiological responses to complex tactile stimuli. BMC Neurosci. 2009; 10:4.
        View in: PubMed
      58. Owen JP, Wipf DP, Attias HT, Sekihara K, Nagarajan SS. Accurate reconstruction of brain activity and functional connectivity from noisy MEG data. Conf Proc IEEE Eng Med Biol Soc. 2009; 2009:65-8.
        View in: PubMed
      59. Wipf D and Nagarajan SS. Advances in Neural Information Processing Systems 22. Sparse Estimation Using General Likelihoods and Non-Factorial Priors. 2009; 2071--2079.
      60. Limpiti T, Van Veen BD, Attias HT, Nagarajan SS. A spatiotemporal framework for estimating trial-to-trial amplitude variation in event-related MEG/EEG. IEEE Trans Biomed Eng. 2009 Mar; 56(3):633-45.
        View in: PubMed
      61. Nagarajan S, Kirsch H, Lin P, Findlay A, Honma S, Berger MS. Preoperative localization of hand motor cortex by adaptive spatial filtering of magnetoencephalography data. J Neurosurg. 2008 Aug; 109(2):228-37.
        View in: PubMed
      62. Dalal SS, Edwards E, Kirsch HE, Barbaro NM, Knight RT, Nagarajan SS. Localization of neurosurgically implanted electrodes via photograph-MRI-radiograph coregistration. J Neurosci Methods. 2008 Sep 15; 174(1):106-15.
        View in: PubMed
      63. Guggisberg AG, Dalal SS, Findlay AM, Nagarajan SS. High-frequency oscillations in distributed neural networks reveal the dynamics of human decision making. Front Hum Neurosci. 2007; 1:14.
        View in: PubMed
      64. Wipf D, Nagarajan S. A unified Bayesian framework for MEG/EEG source imaging. Neuroimage. 2009 Feb 1; 44(3):947-66.
        View in: PubMed
      65. Hild KE, Attias HT, Nagarajan SS. An expectation-maximization method for spatio-temporal blind source separation using an AR-MOG source model. IEEE Trans Neural Netw. 2008 Mar; 19(3):508-19.
        View in: PubMed
      66. Sekihara K, Hild KE, Dalal SS, Nagarajan SS. Performance of prewhitening beamforming in MEG dual experimental conditions. IEEE Trans Biomed Eng. 2008 Mar; 55(3):1112-21.
        View in: PubMed
      67. Zumer JM, Attias HT, Sekihara K, Nagarajan SS. Probabilistic algorithms for MEG/EEG source reconstruction using temporal basis functions learned from data. Neuroimage. 2008 Jul 1; 41(3):924-40.
        View in: PubMed
      68. Guggisberg AG, Honma SM, Findlay AM, Dalal SS, Kirsch HE, Berger MS, Nagarajan SS. Mapping functional connectivity in patients with brain lesions. Ann Neurol. 2008 Feb; 63(2):193-203.
        View in: PubMed
      69. Dalal SS, Guggisberg AG, Edwards E, Sekihara K, Findlay AM, Canolty RT, Berger MS, Knight RT, Barbaro NM, Kirsch HE, Nagarajan SS. Five-dimensional neuroimaging: localization of the time-frequency dynamics of cortical activity. Neuroimage. 2008 May 1; 40(4):1686-700.
        View in: PubMed
      70. Canolty RT, Soltani M, Dalal SS, Edwards E, Dronkers NF, Nagarajan SS, Kirsch HE, Barbaro NM, Knight RT. Spatiotemporal dynamics of word processing in the human brain. Front Neurosci. 2007 Nov; 1(1):185-96.
        View in: PubMed
      71. Guggisberg AG, Kirsch HE, Mantle MM, Barbaro NM, Nagarajan SS. Fast oscillations associated with interictal spikes localize the epileptogenic zone in patients with partial epilepsy. Neuroimage. 2008 Jan 15; 39(2):661-8.
        View in: PubMed
      72. Nagarajan SS, Attias HT, Hild KE, Sekihara K. A probabilistic algorithm for robust interference suppression in bioelectromagnetic sensor data. Stat Med. 2007 Sep 20; 26(21):3886-910.
        View in: PubMed
      73. Kirsch HE, Zhu Z, Honma S, Findlay A, Berger MS, Nagarajan SS. Predicting the location of mouth motor cortex in patients with brain tumors by using somatosensory evoked field measurements. J Neurosurg. 2007 Sep; 107(3):481-7.
        View in: PubMed
      74. Berman JI, Berger MS, Chung SW, Nagarajan SS, Henry RG. Accuracy of diffusion tensor magnetic resonance imaging tractography assessed using intraoperative subcortical stimulation mapping and magnetic source imaging. J Neurosurg. 2007 Sep; 107(3):488-94.
        View in: PubMed
      75. Hairston IS, Nagarajan SS. Neural mechanisms of the time-order error: an MEG study. J Cogn Neurosci. 2007 Jul; 19(7):1163-74.
        View in: PubMed
      76. Kirsch HE, Mantle M, Nagarajan SS. Concordance between routine interictal magnetoencephalography and simultaneous scalp electroencephalography in a sample of patients with epilepsy. J Clin Neurophysiol. 2007 Jun; 24(3):215-31.
        View in: PubMed
      77. Zumer JM, Attias HT, Sekihara K, Nagarajan SS. A probabilistic algorithm integrating source localization and noise suppression for MEG and EEG data. Neuroimage. 2007 Aug 1; 37(1):102-15.
        View in: PubMed
      78. Zhu Z, Disbrow EA, Zumer JM, McGonigle DJ, Nagarajan SS. Spatiotemporal integration of tactile information in human somatosensory cortex. BMC Neurosci. 2007; 8:21.
        View in: PubMed
      79. van Wassenhove V, Nagarajan SS. Auditory cortical plasticity in learning to discriminate modulation rate. J Neurosci. 2007 Mar 7; 27(10):2663-72.
        View in: PubMed
      80. Dalal SS, Guggisberg AG, Edwards E, Sekihara K, Findlay AM, Canolty RT, Knight RT, Barbaro NM, Kirsch HE, Nagarajan SS. Spatial localization of cortical time-frequency dynamics. Conf Proc IEEE Eng Med Biol Soc. 2007; 2007:4941-4.
        View in: PubMed
      81. Hild KE, Alleva G, Nagarajan S, Comani S. Performance comparison of six independent components analysis algorithms for fetal signal extraction from real fMCG data. Phys Med Biol. 2007 Jan 21; 52(2):449-62.
        View in: PubMed
      82. Hinkley LB, Krubitzer LA, Nagarajan SS, Disbrow EA. Sensorimotor integration in S2, PV, and parietal rostroventral areas of the human sylvian fissure. J Neurophysiol. 2007 Feb; 97(2):1288-97.
        View in: PubMed
      83. Lin PT, Berger MS, Nagarajan SS. Motor field sensitivity for preoperative localization of motor cortex. J Neurosurg. 2006 Oct; 105(4):588-94.
        View in: PubMed
      84. Heinks-Maldonado TH, Nagarajan SS, Houde JF. Magnetoencephalographic evidence for a precise forward model in speech production. Neuroreport. 2006 Sep 18; 17(13):1375-9.
        View in: PubMed
      85. Canolty RT, Edwards E, Dalal SS, Soltani M, Nagarajan SS, Kirsch HE, Berger MS, Barbaro NM, Knight RT. High gamma power is phase-locked to theta oscillations in human neocortex. Science. 2006 Sep 15; 313(5793):1626-8.
        View in: PubMed
      86. Nagarajan SS, Portniaguine O, Hwang D, Johnson C, Sekihara K. Controlled Support MEG imaging. Neuroimage. 2006 Nov 15; 33(3):878-85.
        View in: PubMed
      87. Sekihara K, Hild KE, Nagarajan SS. A novel adaptive beamformer for MEG source reconstruction effective when large background brain activities exist. IEEE Trans Biomed Eng. 2006 Sep; 53(9):1755-64.
        View in: PubMed
      88. Kirsch HE, Robinson SE, Mantle M, Nagarajan S. Automated localization of magnetoencephalographic interictal spikes by adaptive spatial filtering. Clin Neurophysiol. 2006 Oct; 117(10):2264-71.
        View in: PubMed
      89. Dalal SS, Sekihara K, Nagarajan SS. Modified beamformers for coherent source region suppression. IEEE Trans Biomed Eng. 2006 Jul; 53(7):1357-63.
        View in: PubMed
      90. Nagarajan SS, Attias HT, Hild KE, Sekihara K. A graphical model for estimating stimulus-evoked brain responses from magnetoencephalography data with large background brain activity. Neuroimage. 2006 Apr 1; 30(2):400-16.
        View in: PubMed
      91. Sekihara K, Sahani M, Nagarajan SS. A simple nonparametric statistical thresholding for MEG spatial-filter source reconstruction images. Neuroimage. 2005 Aug 15; 27(2):368-76.
        View in: PubMed
      92. Philibert B, Beitel RE, Nagarajan SS, Bonham BH, Schreiner CE, Cheung SW. Functional organization and hemispheric comparison of primary auditory cortex in the common marmoset (Callithrix jacchus). J Comp Neurol. 2005 Jul 11; 487(4):391-406.
        View in: PubMed
      93. Sekihara K, Sahani M, Nagarajan SS. Localization bias and spatial resolution of adaptive and non-adaptive spatial filters for MEG source reconstruction. Neuroimage. 2005 May 1; 25(4):1056-67.
        View in: PubMed
      94. Cheung SW, Nagarajan SS, Schreiner CE, Bedenbaugh PH, Wong A. Plasticity in primary auditory cortex of monkeys with altered vocal production. J Neurosci. 2005 Mar 9; 25(10):2490-503.
        View in: PubMed
      95. Dalal SS, Zumer JM, Agrawal V, Hild KE, Sekihara K, Nagarajan SS. NUTMEG: a neuromagnetic source reconstruction toolbox. Neurol Clin Neurophysiol. 2004; 2004:52.
        View in: PubMed
      96. Robinson SE, Nagarajan SS, Mantle M, Gibbons V, Kirsch H. Localization of interictal spikes using SAM(g2) and dipole fit. Neurol Clin Neurophysiol. 2004; 2004:74.
        View in: PubMed
      97. Sekihara K, Nagarajan SS, Poeppel D, Marantz A. Asymptotic SNR of scalar and vector minimum-variance beamformers for neuromagnetic source reconstruction. IEEE Trans Biomed Eng. 2004 Oct; 51(10):1726-34.
        View in: PubMed
      98. Henry RG, Berman JI, Nagarajan SS, Mukherjee P, Berger MS. Subcortical pathways serving cortical language sites: initial experience with diffusion tensor imaging fiber tracking combined with intraoperative language mapping. Neuroimage. 2004 Feb; 21(2):616-22.
        View in: PubMed
      99. Sekihara K, Sahani M, Nagarajan SS. Bootstrap-based statistical thresholding for MEG source reconstruction images. Conf Proc IEEE Eng Med Biol Soc. 2004; 2:1018-21.
        View in: PubMed
      100. Sekihara K, Nagarajan SS, Poeppel D, Marantz A. Performance of an MEG adaptive-beamformer source reconstruction technique in the presence of additive low-rank interference. IEEE Trans Biomed Eng. 2004 Jan; 51(1):90-9.
        View in: PubMed
      101. Hsu KH, Nagarajan SS, Durand DM. Analysis of efficiency of magnetic stimulation. IEEE Trans Biomed Eng. 2003 Nov; 50(11):1276-85.
        View in: PubMed
      102. McKenzie AL, Nagarajan SS, Roberts TP, Merzenich MM, Byl NN. Somatosensory representation of the digits and clinical performance in patients with focal hand dystonia. Am J Phys Med Rehabil. 2003 Oct; 82(10):737-49.
        View in: PubMed
      103. Blomgren M, Nagarajan SS, Lee JN, Li T, Alvord L. Preliminary results of a functional MRI study of brain activation patterns in stuttering and nonstuttering speakers during a lexical access task. J Fluency Disord. 2003; 28(4):337-55; quiz 355-6.
        View in: PubMed
      104. Sekihara K, Nagarajan SS, Poeppel D, Marantz A. Performance of an MEG adaptive-beamformer technique in the presence of correlated neural activities: effects on signal intensity and time-course estimates. IEEE Trans Biomed Eng. 2002 Dec; 49(12 Pt 2):1534-46.
        View in: PubMed
      105. Houde JF, Nagarajan SS, Sekihara K, Merzenich MM. Modulation of the auditory cortex during speech: an MEG study. J Cogn Neurosci. 2002 Nov 15; 14(8):1125-38.
        View in: PubMed
      106. Nagarajan S. Successive signal representation in noise in dyslexics. Clin Neurophysiol. 2002 Apr; 113(4):459-61.
        View in: PubMed
      107. Nagarajan SS, Cheung SW, Bedenbaugh P, Beitel RE, Schreiner CE, Merzenich MM. Representation of spectral and temporal envelope of twitter vocalizations in common marmoset primary auditory cortex. J Neurophysiol. 2002 Apr; 87(4):1723-37.
        View in: PubMed
      108. Sekihara K, Nagarajan SS, Poeppel D, Marantz A, Miyashita Y. Application of an MEG eigenspace beamformer to reconstructing spatio-temporal activities of neural sources. Hum Brain Mapp. 2002 Apr; 15(4):199-215.
        View in: PubMed
      109. Blake DT, Byl NN, Cheung S, Bedenbaugh P, Nagarajan S, Lamb M, Merzenich M. Sensory representation abnormalities that parallel focal hand dystonia in a primate model. Somatosens Mot Res. 2002; 19(4):347-57.
        View in: PubMed
      110. Byl NN, Nagarajan SS, Merzenich MM, Roberts T, McKenzie A. Correlation of clinical neuromusculoskeletal and central somatosensory performance: variability in controls and patients with severe and mild focal hand dystonia. Neural Plast. 2002; 9(3):177-203.
        View in: PubMed
      111. Ahissar E, Nagarajan S, Ahissar M, Protopapas A, Mahncke H, Merzenich MM. Speech comprehension is correlated with temporal response patterns recorded from auditory cortex. Proc Natl Acad Sci U S A. 2001 Nov 6; 98(23):13367-72.
        View in: PubMed
      112. Sekihara K, Nagarajan SS, Poeppel D, Marantz A, Miyashita Y. Reconstructing spatio-temporal activities of neural sources using an MEG vector beamformer technique. IEEE Trans Biomed Eng. 2001 Jul; 48(7):760-71.
        View in: PubMed
      113. Poldrack RA, Temple E, Protopapas A, Nagarajan S, Tallal P, Merzenich M, Gabrieli JD. Relations between the neural bases of dynamic auditory processing and phonological processing: evidence from fMRI. J Cogn Neurosci. 2001 Jul 1; 13(5):687-97.
        View in: PubMed
      114. Cheung SW, Nagarajan SS, Bedenbaugh PH, Schreiner CE, Wang X, Wong A. Auditory cortical neuron response differences under isoflurane versus pentobarbital anesthesia. Hear Res. 2001 Jun; 156(1-2):115-27.
        View in: PubMed
      115. Cheung SW, Bedenbaugh PH, Nagarajan SS, Schreiner CE. Functional organization of squirrel monkey primary auditory cortex: responses to pure tones. J Neurophysiol. 2001 Apr; 85(4):1732-49.
        View in: PubMed
      116. Temple E, Poldrack RA, Protopapas A, Nagarajan S, Salz T, Tallal P, Merzenich MM, Gabrieli JD. Disruption of the neural response to rapid acoustic stimuli in dyslexia: evidence from functional MRI. Proc Natl Acad Sci U S A. 2000 Dec 5; 97(25):13907-12.
        View in: PubMed
      117. Byl NN, McKenzie A, Nagarajan SS. Differences in somatosensory hand organization in a healthy flutist and a flutist with focal hand dystonia: a case report. J Hand Ther. 2000 Oct-Dec; 13(4):302-9.
        View in: PubMed
      118. Sekihara K, Nagarajan SS, Poeppel D, Miyauchi S, Fujimaki N, Koizumi H, Miyashita Y. Estimating neural sources from each time-frequency component of magnetoencephalographic data. IEEE Trans Biomed Eng. 2000 May; 47(5):642-53.
        View in: PubMed
      119. Nagarajan S, Mahncke H, Salz T, Tallal P, Roberts T, Merzenich MM. Cortical auditory signal processing in poor readers. Proc Natl Acad Sci U S A. 1999 May 25; 96(11):6483-8.
        View in: PubMed
      120. Sekihara K, Nagarajan S, Poeppel D, Miyashita Y. Time-frequency MEG-MUSIC algorithm. IEEE Trans Med Imaging. 1999 Jan; 18(1):92-7.
        View in: PubMed
      121. Maccabee PJ, Nagarajan SS, Amassian VE, Durand DM, Szabo AZ, Ahad AB, Cracco RQ, Lai KS, Eberle LP. Influence of pulse sequence, polarity and amplitude on magnetic stimulation of human and porcine peripheral nerve. J Physiol. 1998 Dec 1; 513 ( Pt 2):571-85.
        View in: PubMed
      122. Nagarajan SS, Wang X, Merzenich MM, Schreiner CE, Johnston P, Jenkins WM, Miller S, Tallal P. Speech modifications algorithms used for training language learning-impaired children. IEEE Trans Rehabil Eng. 1998 Sep; 6(3):257-68.
        View in: PubMed
      123. Nagarajan SS, Blake DT, Wright BA, Byl N, Merzenich MM. Practice-related improvements in somatosensory interval discrimination are temporally specific but generalize across skin location, hemisphere, and modality. J Neurosci. 1998 Feb 15; 18(4):1559-70.
        View in: PubMed
      124. Byl NN, Merzenich MM, Cheung S, Bedenbaugh P, Nagarajan SS, Jenkins WM. A primate model for studying focal dystonia and repetitive strain injury: effects on the primary somatosensory cortex. Phys Ther. 1997 Mar; 77(3):269-84.
        View in: PubMed
      125. Nagarajan SS, Durand DM, Hsuing-Hsu K. Mapping location of excitation during magnetic stimulation: effects of coil position. Ann Biomed Eng. 1997 Jan-Feb; 25(1):112-25.
        View in: PubMed
      126. Nagarajan SS, Durand DM. A generalized cable equation for magnetic stimulation of axons. IEEE Trans Biomed Eng. 1996 Mar; 43(3):304-12.
        View in: PubMed
      127. Tallal P, Miller SL, Bedi G, Byma G, Wang X, Nagarajan SS, Schreiner C, Jenkins WM, Merzenich MM. Language comprehension in language-learning impaired children improved with acoustically modified speech. Science. 1996 Jan 5; 271(5245):81-4.
        View in: PubMed
      128. Nagarajan SS, Durand DM. Analysis of magnetic stimulation of a concentric axon in a nerve bundle. IEEE Trans Biomed Eng. 1995 Sep; 42(9):926-33.
        View in: PubMed
      129. Nagarajan SS, Durand DM, Roth BJ, Wijesinghe RS. Magnetic stimulation of axons in a nerve bundle: effects of current redistribution in the bundle. Ann Biomed Eng. 1995 Mar-Apr; 23(2):116-26.
        View in: PubMed
      130. Nagarajan SS, Durand DM, Warman EN. Effects of induced electric fields on finite neuronal structures: a simulation study. IEEE Trans Biomed Eng. 1993 Nov; 40(11):1175-88.
        View in: PubMed
      Back to TOP