Book

• Andreas Galka (2000)
  Topics in Nonlinear Time Series Analysis - With Implications for EEG Analysis
  Advanced Series in Nonlinear Dynamics, edited by R.S. MacKay, Vol. 14; 342 pages;
  World Scientific Publishing Company, Singapore; ISBN 981-02-4148-8

 

Table of contents

Review of this book in Mathematical Reviews (2003)

Book chapters

• Andreas Galka, Kin Foon Kevin Wong and Tohru Ozaki (2010)
  Generalized State Space Models for Modeling Non-stationary EEG Time Series
  Pages 27 - 52 in:
  Modeling Phase Transitions in the Brain,
  Springer Series in Computational Neuroscience, Vol. 4; edited by A.Steyn-Ross and M.Steyn-Ross
  Springer International Publishing; ISBN 978-1-4419-0795-0
• Andreas Galka and Tohru Ozaki (2011)
  Kalman filtering approach to blind separation of independent source components
  Pages 225 - 254 in:
  Kalman Filtering,
  edited by J.M.Gomez
  Nova Science Publishers; ISBN 1617614629
• Abdol S. Soofi, Andreas Galka, Zhe Li, Yuqin Zhang and Xiaofeng Hui (2014)
  Applications of Methods and Algorithms of Nonlinear Dynamics in Economics and Finance
  Pages 1 - 30 in:
  Complexity in Economics: Cutting Edge Research,
  New Economic Windows, Vol. 14; edited by Marisa Faggini and Anna Parziale
  Springer International Publishing; ISBN 978-3-319-05184-0
• Andreas Galka, Michael Siniatchkin, Ulrich Stephani, Kristina Groening, Stephan Wolff, Jorge Bosch-Bayard and Tohru Ozaki (2015)
  Autoregressive modelling of FMRI time series: State space approaches and the General Linear Model
  Pages 79 - 113 in:
  Advanced State Space Methods for Neural and Clinical Data,
  edited by Zhe Chen
  Cambridge University Press; ISBN 978-1-1070-7919-9

Theses

• Andreas Galka (1991)
  Visible laser diodes: Characterisation and application
  Final year project report, Department of Applied Physics, University of Hull (UK)
• Andreas Galka (1994)
  Design and implementation of neural networks using discrete analog electronics
  Diploma thesis, Institut für Angewandte Physik, University of Kiel, Germany (written in German)
• Andreas Galka (1998)
  Correlation dimension estimation and related algorithms for the analysis of the human EEG
  PhD thesis, Institut für Angewandte Physik, University of Kiel, Germany

Papers in peer-reviewed journals

• Andreas Galka, Torsten Maass and Gerd Pfister (1998)
  Estimating the dimension of high-dimensional attractors: A comparison between two algorithms
  Physica D 121, 237 - 251
• Andreas Galka and Tohru Ozaki (2001)
  Testing for nonlinearity in high-dimensional time series from continuous dynamics
  Physica D 158, 32 - 44
• Andreas Galka and Gerd Pfister (2003)
  Dynamical correlations on reconstructed invariant densities and their effect on correlation dimension estimation
  International Journal of Bifurcation and Chaos 13, 723 - 732
• Abdol S. Soofi and Andreas Galka (2003)
  Measuring the complexity of currency markets by fractal dimension analysis
  International Journal of Theoretical and Applied Finance 6, 553 - 563
• Okito Yamashita, Andreas Galka, Tohru Ozaki, Rolando Biscay and Pedro Valdes-Sosa (2004)
  Recursive penalized least squares solution for dynamical inverse problems of EEG generation
  Human Brain Mapping 21, 221 - 235
• Andreas Galka, Okito Yamashita, Tohru Ozaki, Rolando Biscay and Pedro Valdes-Sosa (2004)
  A solution to the dynamical inverse problem of EEG generation using spatiotemporal Kalman filtering
  NeuroImage 23, 435 - 453
• Fumikazu Miwakeichi, Andreas Galka, Sunao Uchida, Hiroshi Arakaki, Nobuhide Hirai, Taketoshi Maehara, Kensuke Kawai and Hiroyuki Shimizu (2004)
  Impulse response function based on multivariate AR model can differentiate focal hemisphere in temporal lobe epilepsy
  Epilepsy Research 61, 73 - 87
• Andreas Galka, Okito Yamashita and Tohru Ozaki (2004)
  GARCH modelling of covariance in dynamical estimation of inverse solutions
  Physics Letters A 333, 261 - 268
• Andreas Galka, Heiko Hansen, Tohru Ozaki and Gerd Pfister (2004)
  Quantification of nonstationary structure in high-dimensional time series
  Asian Journal of Information Technology 3, 1165 - 1171
• Markus Müller, Gerold Baier, Andreas Galka, Ulrich Stephani and Hiltrud Muhle (2005)
  Detection and characterisation of changes of the correlation structure in multivariate time series
  Physical Review E 71, 046116
• Kin Foon Kevin Wong, Andreas Galka, Okito Yamashita and Tohru Ozaki (2006)
  Modelling non-stationary variance in EEG time series by state space GARCH model
  Computers in Biology and Medicine 36, 1327 - 1335
• Andreas Galka, Tohru Ozaki, Jorge Bosch-Bayard and Okito Yamashita (2006)
  Whitening as a tool for estimating mutual information in spatiotemporal data sets
  Journal of Statistical Physics 124, 1275 - 1315
• Markus Mueller, Yurytzy Lopez Jimenez, Christian Rummel, Gerold Baier, Andreas Galka, Ulrich Stephani and Hiltrud Muhle (2006)
  Localized short-range correlations in the spectrum of the equal-time correlation matrix
  Physical Review E 74, 041119
• Andreas Galka, Tohru Ozaki, Hiltrud Muhle, Ulrich Stephani and Michael Siniatchkin (2008)
  A data-driven model of the generation of human EEG based on a spatially distributed stochastic wave equation
  Cognitive Neurodynamics 2, 101 - 113
• Matthew J. Barton, Peter A. Robinson, Suresh Kumar, Andreas Galka, Hugh F. Durrant-Whyte, Jose Guivant and Tohru Ozaki (2009)
  Evaluating the performance of Kalman-filter-based EEG source localization
  IEEE Transactions on Biomedical Engineering 56, 122 - 136
• Muthuraman Muthuraman, Andreas Galka, Günther Deuschl, Ulrich Heute and Jan Raethjen (2010)
  Dynamical correlation of non-stationary signals in time domain -- a comparative study
  Biomedical Signal Processing and Control 5, 205 - 213
• Andreas Galka, Kin Foon Kevin Wong, Tohru Ozaki, Hiltrud Muhle, Ulrich Stephani and Michael Siniatchkin (2010)
  Decomposition of neurological multivariate time series by state space modelling
  Bulletin of Mathematical Biology 73, 285 - 324
• Andreas Galka, Michael Siniatchkin, Ulrich Stephani, Kristina Groening, Stephan Wolff, Jorge Bosch-Bayard and Tohru Ozaki (2010)
  Optimal HRF and smoothing parameters for FMRI time series within an autoregressive modelling framework
  Journal of Integrative Neuroscience 9, 429 - 452
• Jorge Bosch-Bayard, Jorge Riera-Diaz, Rolando Biscay-Lirio, Kin Foon Kevin Wong, Andreas Galka, Okito Yamashita, Norihiro Sadato, Ryuta Kawashima, Eduardo Aubert-Vazquez, Rafael Rodriguez-Rojas, Pedro Valdes-Sosa, Fumikazu Miwakeichi and Tohru Ozaki (2010)
  Spatiotemporal Correlations from FMRI time series based on the NNARX model
  Journal of Integrative Neuroscience 9, 381 - 406
• Jan Möhring, Diana Coropceanu, Andreas Galka, Friederike Moeller, Stephan Wolff, Rainer Boor, Olav Jansen, Ulrich Stephani and Michael Siniatchkin (2011)
  Improving sensitivity of EEG-fMRI studies in epilepsy: the role of sleep-specific activity
  Neuroscience Letters 505, 211 - 215
• Jorge Bosch-Bayard, Kin Foon Kevin Wong, Shuntaro Okazaki, Ritz Oshio, Andreas Galka, Tohru Ozaki and Norihiro Sadato (2012),
  Directed causality for non-stationary time series based on Akaike's Noise Contribution Ratio
  Forest Resources & Mathematical Modeling (FORMATH) 11, 121 - 131
• Makii Muthalib, Abdul Rauf Anwar, Stephane Perrey, Marco Dat, Andreas Galka, Stephan Wolff, Ulrich Heute, Günther Deuschl, Jan Raethjen and Muthuraman Muthuraman (2013)
  Multimodal integration of fNIRS, fMRI and EEG neuroimaging
  Clinical Neurophysiology 124, 2060 - 2062
• Andreas Galka, Kin Foon Kevin Wong, Ulrich Stephani, Tohru Ozaki and Michael Siniatchkin (2013)
  Blind signal separation of mixtures of chaotic processes: a comparison between Independent Component Analysis and State Space Modeling
  International Journal of Bifurcation and Chaos 23, 1350165
• Ümit Aydin, Johannes Vorwerk, Philipp Küpper, Marcel Heers, Harald Kugel, Andreas Galka, Laith Hamid, Jörg Wellmer, Christoph Kellinghaus, Stefan Rampp and Carsten Wolters (2014)
  Combining EEG and MEG for the reconstruction of epileptic activity using a calibrated realistic volume conductor model
  PLoS One 9, e93154
• Elisabeth Steinmann, Antonia Schmalor, Alexander Prehn-Kristensen, Stephan Wolff, Andreas Galka, Jan Möhring, Wolf-Dieter Gerber, Franz Petermann, Ulrich Stephani and Michael Siniatchkin (2014)
  Developmental changes of neuronal networks associated with strategic social decision-making
  Neuropsychologia 56, 37 - 46
• Abdul R. Anwar, Makii Muthalib, Stephane Perrey, Andreas Galka, Oliver Granert, Stephan Wolff, Ulrich Heute, Guenther Deuschl, Jan Raethjen and Muthuraman Muthuraman (2016)
  Effective connectivity of cortical sensorimotor networks during finger movement tasks: A simultaneous fNIRS, fMRI, EEG study
  Brain Topography 29, 645 - 660
• Andreas Galka, Jan Abshagen, Arne Stoltenberg and Volkmar Nejedl (2017)
  Optimal frequency bands for modeling the coupling of structure-borne to underwater sound of a surface vessel
  IEEE Journal of Oceanic Engineering 42, 410 - 423
• Alina Santillán-Guzmán, Ulrich Heute, Ulrich Stephani and Andreas Galka (2017)
  Comparison of different methods to suppress muscle artifacts in EEG signals
  Signal, Image and Video Processing 11, 761 - 768
• Michael Siniatchkin, Jan Moehring, Bianca Kroeher, Andreas Galka, Gisela von Ondarza, Friederike Moeller, Stephan Wolff, Enzo Tagliazucchi, Elisabeth Steinmann, Rainer Boor and Ulrich Stephani (2018)
  Multifocal epilepsy in children is associated with increased long-distance functional connectivity: An explorative EEG-fMRI study
  European Journal of Paediatric Neurology 22, 1054 - 1065
• Ron-Marco Friedrich, Sebastian Zabel, Andreas Galka, Nils Lukat, Jan-Martin Wagner, Christine Kirchhof, Eckhard Quandt, Jeffrey McCord, Christine Selhuber-Unkel, Michael Siniatchkin and Franz Faupel (2019)
  Magnetic particle mapping using magnetoelectric sensors as an imaging modality
  Scientific reports 9, 1 - 11
• Andreas Galka, Sidratul Moontaha, Michael Siniatchkin (2020)
  Constrained expectation maximisation algorithm for estimating ARMA models in state space representation
  EURASIP Journal on Advances in Signal Processing 2020, 1 - 37

Papers in Conference Proceedings (peer-reviewed)

• Alina Santillán-Guzmán, Ulrich Heute, Andreas Galka and Ulrich Stephani (2011)
  Application of State-Space Modeling to instantaneous independent component analysis
  4th IEEE International Conference on Biomedical Engineering and Informatics, BMEI 2011, Shanghai (P.R. China), 643 - 646
• Abdul Rauf Anwar, Makii Muthalib, Stephane Perrey, Andreas Galka, Oliver Granert, Stephan Wolff, Günther Deuschl, Jan Raethjen, Ulrich Heute and Muthuraman Muthuraman (2012)
  Directionality analysis on functional magnetic resonance imaging during motor task using Granger Causality
  34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2012, San Diego (USA), 2287 - 2290
• Alina Santillán-Guzmán, Ulrich Heute, Ulrich Stephani and Andreas Galka (2012)
  Muscle artifact suppression using Independent-Component Analysis and State-Space Modeling
  34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2012, San Diego (USA), 6500 - 6503
• Alina Santillán-Guzmán, Ulrich Heute, Ulrich Stephani, Hiltrud Muhle, Andreas Galka and Michael Siniatchkin (2013)
  Hybrid Filter for Removing Power-Supply Artifacts from EEG Signals
  10th IASTED Conference on Biomedical Engineering 2013, Innsbruck (Austria), 41 - 45
• Andreas Galka, Laith Hamid, Ulrich Stephani and Michael Siniatchkin (2013)
  Removing Artifacts from EEG Recorded within MR Scanner by Dynamical Template State Space Approach
  10th IASTED Conference on Biomedical Engineering 2013, Innsbruck (Austria), 105 - 112
• Abdul Rauf Anwar, Makii Muthalib, Stephane Perrey, Andreas Galka, Oliver Granert, Stephan Wolff, Günther Deuschl, Jan Raethjen, Ulrich Heute and Muthuraman Muthuraman (2013)
  Comparison of causality analysis on simultaneously measured fMRI and NIRS signals during motor tasks
  35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2013, Osaka (Japan), 2628 - 2631
• Muthuraman Muthuraman, Andreas Galka, V. Hong, Ulrich Heute, Günther Deuschl and Jan Raethjen (2013)
  Cortico-muscular coherence on artifact corrected EEG-EMG data recorded with a MRI scanner
  35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2013, Osaka (Japan), 4811 - 4814
• Alina Santillán-Guzmán, Ulrich Heute, Muthuraman Muthuraman, Ulrich Stephani and Andreas Galka (2013)
  DBS artifact suppression using a time-frequency domain filter
  35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2013, Osaka (Japan), 4815 - 4818
• Laith Hamid, Umit Aydin, Carsten Wolters, Ulrich Stephani, Michael Siniatchkin and Andreas Galka (2013)
  MEG-EEG fusion by Kalman filtering within a source analysis framework
  35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2013, Osaka (Japan), 4819 - 4822
• Kidist G. Mideksa, Alina Santillán-Guzmán, Natia Japaridze, Andreas Galka, Ulrich Stephani, Günther Deuschl, Ulrich Heute and Muthuraman Muthuraman (2014)
  Validating the effect of muscle artifact suppression in localizing focal epilepsy
  36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2014, Chicago (USA), 3841 - 3844
• Andreas Galka, Rainer Boor, Corinna Doege, Sarah von Spiczak, Ulrich Stephani and Michael Siniatchkin (2015)
  Analysis of epileptic seizure count time series by Ensemble State Space Modelling
  37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2015, Milan (Italy), 5601 - 5605
• Laith Hamid, Masoud Sarabi, Natia Japaridze, Gert Wiegand, Ulrich Heute, Ulrich Stephani, Andreas Galka and Michael Siniatchkin (2015)
  The performance of the spatiotemporal Kalman Filter and LORETA in seizure onset localization
  37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2015, Milan (Italy), 2741 - 2744
• Nawar Habboush, Laith Hamid, Natia Japaridze, Gert Wiegand, Ulrich Heute, Ulrich Stephani, Andreas Galka and Michael Siniatchkin (2015)
  The choice of the source space and the Laplacian matrix in LORETA and the spatiotemporal Kalman Filter EEG inverse methods
  37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Milan (Italy), 2745 - 2749
• Laith Hamid, Ali Al Farawn, Isabelle Merlet, Natia Japaridze, Ulrich Heute, Ulrich Stephani, Andreas Galka, Fabrice Wendling und Michael Siniatchkin (2017)
  Spatial projection as a preprocessing step for EEG source reconstruction using spatiotemporal Kalman filtering
  39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Jeju Island (South Korea), 2213 - 2217
• Laith Hamid, Ali Al Farawn, Isabelle Merlet, Natia Japaridze, Ulrich Heute, Ulrich Stephani, Andreas Galka, Fabrice Wendling und Michael Siniatchkin (2017)
  Source reconstruction via the spatiotemporal Kalman filter and LORETA from EEG time series with 32 or fewer electrodes
  39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Jeju Island (South Korea), 2218 - 2222
• Sidratul Moontaha, Andreas Galka, Thomas Meurer and Michael Siniatchkin (2018)
  Analysis of the effects of medication for the treatment of epilepsy by ensemble Iterative Extended Kalman Filtering
  40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Honolulu (USA), 187 - 190
• Nawar Habboush, Laith Hamid, Michael Siniatchkin, Ulrich Stephani and Andreas Galka (2018)
  Pipeline for Forward Modeling and Source Imaging of Magnetocardiographic Recordings via Spatiotemporal Kalman Filtering
  40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Honolulu (USA), 199 - 202
• Sidratul Moontaha, Andreas Galka, Michael Siniatchkin, Sascha Scharlach, Sarah von Spiczak, Ulrich Stephani, Theodor May and Thomas Meurer (2018)
  SVD Square-root Iterated Extended Kalman Filter for Modeling of Epileptic Seizure Count Time Series with External Inputs
  41th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Berlin (Germany), 616 - 619

Papers in Conference Proceedings (without peer review)

• Andreas Galka (2000)
  Detection of determinism in EEG time series from human sleep by an interspike interval approach
  in: P. Grassberger, C.E. Elger, K.Lehnertz and J. Arnhold (editors):
  Workshop on "Chaos in Brain?", NIC, Forschungszentrum Jülich and Department of Epileptology, University of Bonn (Germany), March 10-12 1999
  World Scientific Publishing Company, Singapore; ISBN 981-02-4222-0
  pages 263 - 266
• Andreas Galka (2000)
  Detection and quantitative description of nonstationarity in chaotic time series
  in: G. Kitagawa and T. Higuchi (editors):
  Proceedings of the International Symposium on Frontiers of Time Series Modeling, Institute of Statistical Mathematics (ISM), Tokyo (Japan), February 7-9 2000
  published by the ISM
  pages 314 - 315
• Andreas Galka, Gerd Pfister, Ulrich Stephani and Hiltrud Muhle (2000)
  Characterisation of nonstationarity in EEG time series
  Neuropediatrics 31, A9
• Andreas Galka, Heiko Hansen, Tohru Ozaki and Gerd Pfister (2001)
  Quantification of nonstationary structure in high-dimensional time series
  in: Y. Baba, J.C. Jimenez Sobrino, K. Kanefuji, T. Ozaki and H. Peng (editors):
  Proceedings of the ISM Symposium on Statistical Researches in Complex Systems, Institute of Statistical Mathematics (ISM), Tokyo (Japan), March 8-9 2001
  published by the ISM
  pages 107 - 116
• Andreas Galka and Tohru Ozaki (2002)
  A subsampling approach to testing for nonlinearity in high-dimensional time series from continuous dynamics
  in: S. Lee (editor):
  Proceedings of the 2002 SRCCS Probability Workshop, Statistical Research Center for Complex Systems, Seoul National University, Seoul (Korea), August 28-29 2002
• Andreas Galka, Tohru Ozaki, Okito Yamashita, Rolando Biscay and Pedro Valdes-Sosa (2003)
  Spatiotemporal Kalman filtering: A new approach for solving high-dimensional inverse problems
  Proceedings of the Annual Conference of the Japanese Statistical Society
  pages 477 - 478
• Andreas Galka, Okito Yamashita, Tohru Ozaki, Rolando Biscay and Pedro Valdes-Sosa (2004)
  A solution to the dynamical inverse problem of EEG generation using spatiotemporal Kalman filtering
  Transactions of the Japanese Society for Medical and Biological Engineering 42, Suppl. 1
  372 (OR 24-2)
• Andreas Galka, Tohru Ozaki, Jorge Bosch-Bayard and Okito Yamashita (2004)
  Innovation approach to extracting connectivity information from fMRI time series
  Proceedings of the Annual Conference of the Japanese Statistical Society
  pages 437 - 438
• Andreas Galka, Tohru Ozaki and Kevin Wong (2005)
  A time series approach to Independent Component Analysis
  Proceedings of the Annual Conference of the Japanese Statistical Society
  pages 430 - 431
• Andreas Galka, Tohru Ozaki, Ulrich Stephani and Michael Siniatchkin (2010)
  FMRI time series modelling with jointly optimised HRF and spatial smoothing parameters
  Proceedings of BIOSIGNAL 2010, July 14-16, 2010, Berlin, Germany

Technical reports

• Andreas Galka, Ulrich Stephani and Hiltrud Muhle (2002)
  Hybrid nonlinear filtering approach to removing anharmonic periodic components from EEG time series
  Research Memorandum No. 843 of the Institute of Statistical Mathematics, Tokyo (Japan)
• Markus Müller, Gerold Baier, Alejandro Diaz Gutierrez and Andreas Galka (2002)
  Extraer correlaciones escondidas de datos multivaluados (in Spanish)
  X. Escuela de Verano en Fisica, Universidad de Morelos, Cuernavaca (Mexico)
• Andreas Galka, Tohru Ozaki, Okito Yamashita, Rolando Biscay and Pedro Valdes-Sosa (2002)
  A solution to the dynamical inverse problem of EEG generation using spatiotemporal Kalman filtering
  Research Memorandum No. 862 of the Institute of Statistical Mathematics, Tokyo (Japan)
• Okito Yamashita, Tohru Ozaki, Andreas Galka, Rolando Biscay and Pedro Valdes-Sosa (2003)
  Dynamic inverse problem and the practical computation procedure for the solution
  Research Memorandum No. 868 of the Institute of Statistical Mathematics, Tokyo (Japan)
• Andreas Galka, Okito Yamashita and Tohru Ozaki (2004),
  GARCH-control of covariance in dynamical estimation of inverse solutions
  Research Memorandum No. 915 of the Institute of Statistical Mathematics, Tokyo (Japan)
• Andreas Galka, Tohru Ozaki, Jorge Bosch-Bayard and Okito Yamashita (2004)
  Whitening as a tool for estimating mutual information in spatiotemporal data sets
  Research Memorandum No. 920 of the Institute of Statistical Mathematics, Tokyo (Japan)

Poster presentations (without accompanying peer-reviewed paper)

• Andreas Galka, Stephan Wolff and Gerd Pfister (1997)
  On the calibration of methods for the estimation of the correlation dimension
  poster presented at the Annual Spring Meeting of the German Physical Society, Münster (Germany), March 16-20 1997
• Andreas Galka (1998)
  Testing for nonlinearity in short time series from medicine and ecology
  poster presented at the winter school "Nonlinear Time Series Analysis" (TISEAN98), held at the Max-Planck-Institut für Physik komplexer Systeme, Dresden (Germany), February 11-21 1998
• Andreas Galka, Torsten Maass, Stephan Wolff and Gerd Pfister (1998)
  Monte Carlo analysis of fractal dimension estimators for high-dimensional point sets
  poster presented at the UK Dynamics Days meeting, Edinburgh (Scotland/UK), June 28 - July 01 1998
• Andreas Galka (1999)
  Detection of determinism in EEG time series from human sleep by an interspike interval approach
  poster presented at the workshop "Chaos in Brain", Bonn (Germany), March 10-12 1999
• Andre Morsnowski, Andreas Galka and Gerd Pfister (1999)
  Modelling and prediction by use of local autoregressive processes
  poster presented at the Annual Spring Meeting of the German Physical Society, Münster (Germany), March 22-26 1999
• Andreas Galka (2000)
  Detection and quantitative description of nonstationarity in chaotic time series
  poster presented at the International Symposium on Frontiers of Time Series Modeling, held at the Institute of Statistical Mathematics, Tokyo (Japan), February 7-9 2000
• Andreas Galka, Gerd Pfister, Ulrich Stephani and Hiltrud Muhle (2000)
  Characterisation of Nonstationarity in EEG time series
  poster presented at the 26th annual meeting of the Society for Neuropediatrics, Kiel (Germany), May 4-7 2000
• Andreas Galka and Tohru Ozaki (2001)
  Quantification of Nonlinearity in Time Series from Continuous Dynamics
  poster presented at the VIII. Latin American Congress on Probability and Mathematical Statistics, La Habana (Cuba), November 12-16 2001
• Andreas Galka, Okito Yamashita, Tohru Ozaki, Rolando Biscay and Pedro Valdes-Sosa (2003)
  A solution to the dynamical inverse problem of EEG generation using spatiotemporal Kalman filtering
  poster presented at the 9th Annual Meeting of the Organization for Human Brain Mapping, New York (USA), June 19-22 2003;
  abstract published in NeuroImage 19 (2003), special issue
• Okito Yamashita, Andreas Galka, Tohru Ozaki, Rolando Biscay and Pedro Valdes-Sosa (2003)
  Dynamical inverse problem of EEG and the practical computation procedure for the solution
  poster presented at the 9th Annual Meeting of the Organization for Human Brain Mapping, New York (USA), June 19-22 2003;
  abstract published in NeuroImage 19 (2003), special issue
• Andreas Galka, Tohru Ozaki, Jorge Bosch-Bayard, Okito Yamashita, Jorge Riera-Diaz and Norihiro Sadato (2004)
  Innovation approach to extracting connectivity information from fMRI time series
  poster presented at the 10th Annual Meeting of the Organization for Human Brain Mapping, Budapest (Hungary), June 13-17 2004;
  abstract published in NeuroImage 22 (2004), special issue
• Okito Yamashita, Andreas Galka and Tohru Ozaki (2004)
  State Space Approach to Dynamical Inverse Problems with an Application to Epilepsy EEG Data
  poster presented at the 10th Annual Meeting of the Organization for Human Brain Mapping, Budapest (Hungary), June 13-17 2004;
  abstract published in NeuroImage 22 (2004), special issue
• Jorge Riera-Diaz, Jorge Bosch-Bayard, Okito Yamashita, Andreas Galka, Ryuta Kawashima, Norihiro Sadato and Tohru Ozaki (2004)
  fMRI activation maps based on the NN-ARX model
  poster presented at the 10th Annual Meeting of the Organization for Human Brain Mapping, Budapest (Hungary), June 13-17 2004;
  abstract published in NeuroImage 22 (2004), special issue
• Andreas Galka, Kin Foon Kevin Wong and Tohru Ozaki (2006)
  Decomposition of EEG time series into independent components by state-space modelling
  poster presented at the 12th Annual Meeting of the Organization for Human Brain Mapping, Florence (Italy), June 11-15 2006;
  abstract published in NeuroImage 31 (2006), special issue
• Kin Foon Kevin Wong, Andreas Galka, Okito Yamashita and Tohru Ozaki (2006)
  Statistical modeling of time-varying power in frequency bands in EEG and its application to the study of consciousness
  poster presented at the 12th Annual Meeting of the Organization for Human Brain Mapping, Florence (Italy), June 11-15 2006;
  abstract published in NeuroImage 31 (2006), special issue
• Kin Foon Kevin Wong, Andreas Galka, Tohru Ozaki, Norihiro Sadato, Yoko Maki and Daisuke Saito (2006)
  Using Noise Contribution Ratio to study causality of multivariate ARMA model or state-space model with non-stationary variance
  poster presented at the 12th Annual Meeting of the Organization for Human Brain Mapping, Florence (Italy), June 11-15 2006;
  abstract published in NeuroImage 31 (2006), special issue
• Andreas Galka, Michael Siniatchkin, Tohru Ozaki, Kin Foon Kevin Wong, Ulrich Stephani and Günther Deuschl (2007)
  Scanner Artefact Removal from EEG Time Series by State Space Modelling
  poster presented at the 13th Annual Meeting of the Organization for Human Brain Mapping, Chicago (USA), June 10-14 2007;
  abstract published in NeuroImage 36 (2007), Supplement
• Kin Foon Kevin Wong, Andreas Galka and Tohru Ozaki (2008)
  Frequency-wise inverse solutions to EEG recordings by state space modeling decomposition and dynamical LORETA, and its application to changes in slow delta activity during induction of anesthesia
  poster presented at the 14th Annual Meeting of the Organization for Human Brain Mapping, Melbourne (Australia), June 15-19 2008;
  abstract published in NeuroImage 41 (2008), Supplement
• Fumikazu Miwakeichi, Andreas Galka, Friederike Moeller and Michael Siniatchkin (2010)
  An innovation approach for epileptic fMRI data analysis based on statistical time series modelling
  poster presented at the 16th Annual Meeting of the Organization for Human Brain Mapping, Barcelona (Spain), June 6-10 2010
• Andreas Galka, Michael Siniatchkin, Ulrich Stephani, Kristina Groening, Stephan Wolff, Jorge Bosch-Bayard and Tohru Ozaki (2010)
  Optimal HRF and smoothing parameters for fMRI time series in an autoregressive modelling framework
  poster presented at the 16th Annual Meeting of the Organization for Human Brain Mapping, Barcelona (Spain), June 6-10 2010
• Sidratul Moontaha, Sarah von Spiczak, Sascha Scharlach, Corinna Doege, Rainer Boor, Thorsten May, Ulrich Stephani, Michael Siniatchkin and Andreas Galka (2017)
  Evaluation of the Effects of Anticonvulsive Therapy in Children with Symptomatic Epilepsy by a State Space Modeling Approach
  poster presented at the 43rd Annual Meeting of the Society for Neuropediatrics, Bad Nauheim (Germany), April 27-30 2017
  abstract published in Neuropediatrics 48 (S 01), P54
• Anna Jodko-Wladzinska, Nawar Habboush, Rüdiger Brühl, Thomas Middelmann, Andreas Galka, Lutz Trahms and Tilmann H. Sander (2019)
  Anatomy-adapted sensor holder for personalized OPM magnetoencephalography and magnetocardiography
  poster presented at the "Today’s Noise Tomorrow’s Signal" (TNTS'2019) conference, Berlin (Germany), February 13-15 2019