Björn Schelter

Summary

Affiliation: University of Freiburg
Country: Germany

Publications

  1. doi request reprint Seizure prediction in epilepsy: from circadian concepts via probabilistic forecasting to statistical evaluation
    Björn Schelter
    Faculty of Mathematics and Physics, University of Freiburg, Freiburg, Germany
    Conf Proc IEEE Eng Med Biol Soc 2011:1624-7. 2011
  2. doi request reprint Multivariate analysis of dynamical processes with applications to the neurosciences
    Björn Schelter
    Faculty of Mathematics and Physics, University of Freiburg, Freiburg, Germany
    Conf Proc IEEE Eng Med Biol Soc 2011:5931-4. 2011
  3. doi request reprint Assessing the strength of directed influences among neural signals using renormalized partial directed coherence
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Freiburg, Germany
    J Neurosci Methods 179:121-30. 2009
  4. doi request reprint A common strategy and database to compare the performance of seizure prediction algorithms
    Bjoern Schelter
    Center for Data Analysis and Modeling, Department of Physics, University of Freiburg, Freiburg, Germany
    Epilepsy Behav 17:154-6. 2010
  5. ncbi request reprint Do false predictions of seizures depend on the state of vigilance? A report from two seizure-prediction methods and proposed remedies
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, and Epilepsy Center, University Hospital of Freiburg, Germany
    Epilepsia 47:2058-70. 2006
  6. ncbi request reprint Direct or indirect? Graphical models for neural oscillators
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    J Physiol Paris 99:37-46. 2006
  7. ncbi request reprint Seizure prediction: the impact of long prediction horizons
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Epilepsy Res 73:213-7. 2007
  8. ncbi request reprint Testing statistical significance of multivariate time series analysis techniques for epileptic seizure prediction
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Chaos 16:013108. 2006
  9. ncbi request reprint Testing for directed influences among neural signals using partial directed coherence
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, and Department of Neurology, University Hospital of Freiburg, Germany
    J Neurosci Methods 152:210-9. 2006
  10. doi request reprint Time-variant estimation of directed influences during Parkinsonian tremor
    Linda Sommerlade
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    J Physiol Paris 103:348-52. 2009

Detail Information

Publications31

  1. doi request reprint Seizure prediction in epilepsy: from circadian concepts via probabilistic forecasting to statistical evaluation
    Björn Schelter
    Faculty of Mathematics and Physics, University of Freiburg, Freiburg, Germany
    Conf Proc IEEE Eng Med Biol Soc 2011:1624-7. 2011
    ..The fraction of patients for whom we found a significant seizure prediction performance was increased from 25% to 38% by accounting for circadian dependencies...
  2. doi request reprint Multivariate analysis of dynamical processes with applications to the neurosciences
    Björn Schelter
    Faculty of Mathematics and Physics, University of Freiburg, Freiburg, Germany
    Conf Proc IEEE Eng Med Biol Soc 2011:5931-4. 2011
    ..We discuss its abilities and limitations, and demonstrate its usefulness in an application to murine electroencephalography (EEG) data during sleep transitions...
  3. doi request reprint Assessing the strength of directed influences among neural signals using renormalized partial directed coherence
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Freiburg, Germany
    J Neurosci Methods 179:121-30. 2009
    ..The performance of this novel concept is illustrated by application to model systems and to electroencephalography and electromyography data from a patient suffering from Parkinsonian tremor...
  4. doi request reprint A common strategy and database to compare the performance of seizure prediction algorithms
    Bjoern Schelter
    Center for Data Analysis and Modeling, Department of Physics, University of Freiburg, Freiburg, Germany
    Epilepsy Behav 17:154-6. 2010
    ..To this aim, a Seizure Prediction Competition has been set up. Here, the background and the details of this competition are described...
  5. ncbi request reprint Do false predictions of seizures depend on the state of vigilance? A report from two seizure-prediction methods and proposed remedies
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, and Epilepsy Center, University Hospital of Freiburg, Germany
    Epilepsia 47:2058-70. 2006
    ..This study addresses potential causes and the circadian distribution of false predictions as well as their relation to the sleep-wake cycle...
  6. ncbi request reprint Direct or indirect? Graphical models for neural oscillators
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    J Physiol Paris 99:37-46. 2006
    ..To this aim multivariate times series techniques are presented and investigated by means of simulated as well as physiological time series. Pitfalls and limitations of these techniques are discussed...
  7. ncbi request reprint Seizure prediction: the impact of long prediction horizons
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Epilepsy Res 73:213-7. 2007
    ..Here, we discuss impacts of long prediction horizons with respect to clinical needs and the strain on patients by analyzing long-term continuous intracranial electroencephalography data...
  8. ncbi request reprint Testing statistical significance of multivariate time series analysis techniques for epileptic seizure prediction
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Chaos 16:013108. 2006
    ..Their performance is illustrated utilizing a bivariate seizure prediction method based on synchronization theory...
  9. ncbi request reprint Testing for directed influences among neural signals using partial directed coherence
    Björn Schelter
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, and Department of Neurology, University Hospital of Freiburg, Germany
    J Neurosci Methods 152:210-9. 2006
    ..The performance of this test is illustrated by means of linear and non-linear model systems and in an application to electroencephalography and electromyography data recorded from a patient suffering from essential tremor...
  10. doi request reprint Time-variant estimation of directed influences during Parkinsonian tremor
    Linda Sommerlade
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    J Physiol Paris 103:348-52. 2009
    ..Therefore an extension of the current approaches towards time-resolved analysis techniques is desired. We present a parametric approach for time variant analysis, test its performance for simulated data, and apply it to real-world data...
  11. doi request reprint High functional connectivity of tremor related subthalamic neurons in Parkinson's disease
    Florian Amtage
    Department of Neurology and Neurophysiology, University of Freiburg, Germany
    Clin Neurophysiol 120:1755-61. 2009
    ..Here, we investigate the functional connectivity between STN neurons in patients with Parkinsonian tremor...
  12. ncbi request reprint Spatio-temporal patient-individual assessment of synchronization changes for epileptic seizure prediction
    Matthias Winterhalder
    Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Clin Neurophysiol 117:2399-413. 2006
    ..Therefore, multivariate time series analysis techniques investigating relationships between the dynamics of different neural populations may offer advantages in predicting epileptic seizures...
  13. doi request reprint Joining the benefits: combining epileptic seizure prediction methods
    Hinnerk Feldwisch-Drentrup
    Bernstein Center for Computational Neuroscience Freiburg, University of Freiburg, Freiburg, Germany
    Epilepsia 51:1598-606. 2010
    ....
  14. ncbi request reprint Estimating causal dependencies in networks of nonlinear stochastic dynamical systems
    Linda Sommerlade
    Department of Physics, University of Freiburg, Hermann Herder Str 3, 79104 Freiburg, Germany
    Phys Rev E Stat Nonlin Soft Matter Phys 80:051128. 2009
    ..We calculate the corresponding statistics and provide a significance level. The performance is illustrated by means of model systems and in an application to neurological data...
  15. doi request reprint The impact of latent confounders in directed network analysis in neuroscience
    Rebecca Ramb
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstrasse 1, 79104 Freiburg, Germany
    Philos Trans A Math Phys Eng Sci 371:20110612. 2013
    ..Therefore, all analyses are also performed for a simulated nonlinear system and discussed with regard to applications in neuroscience. ..
  16. doi request reprint Inference of Granger causal time-dependent influences in noisy multivariate time series
    Linda Sommerlade
    Department of Physics, University of Freiburg, Hermann Herder Str 3, 79104 Freiburg, Germany
    J Neurosci Methods 203:173-85. 2012
    ..To overcome both, we present a new approach by combining renormalized partial directed coherence with state space modeling. A numerical efficient way to perform both the estimation as well as the statistical inference will be presented...
  17. ncbi request reprint Application of a multivariate seizure detection and prediction method to non-invasive and intracranial long-term EEG recordings
    Ariane Schad
    FDM, Freiburg Center for Data Analysis and Modeling, University of Freiburg, Eckerstr 1, 79104 Freiburg, Germany
    Clin Neurophysiol 119:197-211. 2008
    ..Retrospective evaluation and comparison of performances of a multivariate method for seizure detection and prediction on simultaneous long-term EEG recordings from scalp and intracranial electrodes...
  18. doi request reprint On the estimation of the direction of information flow in networks of dynamical systems
    Linda Sommerlade
    Department of Physics, University of Freiburg, Hermann Herder Str 3, 79104 Freiburg, Germany
    J Neurosci Methods 196:182-9. 2011
    ..The abilities and limitations of the individual techniques are compared and discussed. An application to essential tremor complements this investigation...
  19. ncbi request reprint Comment on: "Performance of a seizure warning algorithm based on the dynamics of intracranial EEG"
    Matthias Winterhalder
    Center for Data Analysis and Modeling, University of Freiburg, Germany
    Epilepsy Res 72:80-1; discussion 82-4. 2006
  20. doi request reprint Anticipating the unobserved: prediction of subclinical seizures
    Hinnerk Feldwisch-Drentrup
    Bernstein Center Freiburg, University of Freiburg, Freiburg, Germany
    Epilepsy Behav 22:S119-26. 2011
    ..This article is part of a Supplemental Special Issue entitled The Future of Automated Seizure Detection and Prediction...
  21. ncbi request reprint Tremor-correlated neuronal activity in the subthalamic nucleus of Parkinsonian patients
    Florian Amtage
    Department of Neurology and Neurophysiology, University of Freiburg, Freiburg, Germany
    Neurosci Lett 442:195-9. 2008
    ..The wide-spread spatial distribution of tremor-coherent spike activity argues for the recruitment of an extended network of subthalamic neurons for tremor generation...
  22. ncbi request reprint Optimized spectral estimation for nonlinear synchronizing systems
    Linda Sommerlade
    Institute for Complex Systems and Mathematical Biology, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom and Department of Physics, University of Freiburg, Hermann Herder Strasse 3, 79104 Freiburg, Germany and Freiburg Center for Data Analysis and Modeling FDM, University of Freiburg, Eckerstrasse 1, 79104 Freiburg, Germany and Freiburg Institute for Advanced Studies FRIAS, University of Freiburg, Albertstrasse 19, 79104 Freiburg, Germany
    Phys Rev E Stat Nonlin Soft Matter Phys 89:032912. 2014
    ..We complete our investigation with an application to nonlinear tremor signals in Parkinson's disease. In particular, we analyze electroencephalogram and electromyogram data. ..
  23. doi request reprint Joint EEG/fMRI state space model for the detection of directed interactions in human brains--a simulation study
    Michael Lenz
    Freiburg Center for Data Analysis and Modeling, University Freiburg, Freiburg, Germany
    Physiol Meas 32:1725-36. 2011
    ..It remains to be investigated whether other models or similar combinations of other modalities such as, e.g., EEG and magnetoencephalography can increase the profit of the promising idea of combining various modalities...
  24. ncbi request reprint Distinguishing direct from indirect interactions in oscillatory networks with multiple time scales
    Jakob Nawrath
    Physics Department, University of Freiburg, Hermann Herder Str 3, 79104 Freiburg, Germany
    Phys Rev Lett 104:038701. 2010
    ..We successfully apply the proposed method to model systems and experimental data from coupled electrochemical oscillators. The statistical significance of the results is evaluated based on a surrogate hypothesis test...
  25. ncbi request reprint Detection of directed information flow in biosignals
    Matthias Winterhalder
    Freiburg Center for Data Analysis and Modeling FDM, University of Freiburg, Freiburg, Germany
    Biomed Tech (Berl) 51:281-7. 2006
    ..The performance of these tools is demonstrated by application to linear dynamic systems...
  26. doi request reprint Block-bootstrapping for noisy data
    Malenka Mader
    Department of Neuropediatrics and Muscular Disease, University Medical Center of Freiburg, Mathildenstrasse 1, 79106 Freiburg, Germany Freiburg Center for Data Analysis and Modeling FDM, University of Freiburg, Eckerstrasse 1, 79104 Freiburg, Germany Institute for Physics, University of Freiburg, Hermann Herder Strasse 3a, 79104 Freiburg, Germany Electronic address
    J Neurosci Methods 219:285-91. 2013
    ..To this end, statistical concepts of confidence intervals, significance levels and hypothesis tests are employed. Bootstrap-based approaches complement the analytical approaches, replacing the latter whenever these are not possible...
  27. doi request reprint Grading of dynamic cerebral autoregulation without blood pressure recordings: a simple Doppler-based method
    Linda Sommerlade
    Center for Data Analysis and Modeling FDM, University of Freiburg, Breisacher Strasse 64, Freiberg, Germany
    Ultrasound Med Biol 38:1546-51. 2012
    ..024) and correlated significantly with the standard phase ABP-CBFV (r = 0.369, p < 0.001). The proposed method can, thus, detect impaired dynamic autoregulation in occlusive carotid artery disease using a single Doppler probe...
  28. ncbi request reprint Statistical validation of event predictors: a comparative study based on the field of seizure prediction
    Hinnerk Feldwisch-Drentrup
    Bernstein Center Freiburg, University of Freiburg, Freiburg, Germany and Freiburg Center for Data Analysis and Modeling, University of Freiburg, Freiburg, Germany
    Phys Rev E Stat Nonlin Soft Matter Phys 83:066704. 2011
    ..Hence we outline necessary preconditions for sound statistical tests on above chance predictions...
  29. doi request reprint EPILEPSIAE - a European epilepsy database
    Matthias Ihle
    Epilepsy Center, University Hospital Freiburg, Germany
    Comput Methods Programs Biomed 106:127-38. 2012
    ..The organization of this European database will allow for accessibility by a wide spectrum of research groups and may serve as a model for similar databases planned for the future...
  30. doi request reprint Parametric versus nonparametric transfer function estimation of cerebral autoregulation from spontaneous blood-pressure oscillations
    Michael Jachan
    Center for Data Analysis and Modeling FDM, Freiburg University, Eckerstr 1 FDM, 79104 Freiburg, Germany
    Cardiovasc Eng 9:72-82. 2009
    ..0016) by all three methods. In conclusion, CAR measurements by means of spontaneous oscillations can be obtained stably and the presented parametric approaches can serve for future online application of CAR measurement...
  31. doi request reprint Detection of preclinical neural dysfunction from functional connectivity graphs derived from task fMRI. An example from degeneration
    Yolanda Vives-Gilabert
    Freiburg Brain Imaging, University of Freiburg, Freiburg, Germany Port d Informació Científica PIC, Campus UAB Edifici D, Bellaterra, Spain Electronic address
    Psychiatry Res 214:322-30. 2013
    ..Developing methods that reduce variability related to noise should be the focus of future studies. ..