Publications

Check out my Google Scholar page

Papers

  1. Karahan, E., Tait L., Si R., Ozkan A., Szul M., Lawrence A., Zhang J., “Individual variability in the human connectome maintains selective cross-modal consistency and shares microstructural signatures”, 2021, preprint: 10.1101/2021.04.01.438129v1 paper code

  2. Karahan, E., Costigan A. G., Graham K. S. , Lawrence A. D., Zhang J., “Cognitive and white-matter compartment models reveal selective relations between corticospinal tract microstructure and simple reaction time”, 2019, Journal of Neuroscience, 2954-18.3. paper code

  3. Hu S., Karahan, E., Valdes-Sosa P.A., “Restate the reference for EEG microstate analysis”, 2018, arXiv: 1802.02701v1. paper

  4. Van de Steen, F., Faes, L., Karahan, E., Songsiri, J., Valdes-Sosa, P. A., Marinazzo, D., “Critical Comments on EEG Sensor Space Dynamical Connectivity Analysis”, 2019, Brain Topography. paper

  5. Ren, P., Karahan, E., Chen, C., Luo, R., Geng, Y., Bosch Bayard, J. F., . . . Valdes-Sosa, P. A., “Gait Influence Diagrams in Parkinson’s Disease”, IEEE Trans on Neural Systems and Rehab Eng, 2016, 4320(c), 1–1. paper

  6. Bayram, A., Karahan, E., Bilgiç, B., Ademoglu, A., Demiralp, T., “Achromatic temporal-frequency responses of human lateral geniculate nucleus and primary visual cortex”, Vision Research, 2016, 127, 177–185. paper

  7. Karahan, E., P.A. Rojas-Lopez, M.L. Bringas-Vega, P.A. Valdes-Hernandez, P.A. Valdes-Sosa, “Tensor Analysis and Fusion of Multimodal Brain Images”, Proc. of the IEEE. 2015; 103(9):1531-1559. paper code1 code2 code3

  8. Bayram A., Bayraktaroğlu Z., Karahan, E., Erdoğan B., Bilgiç B., Özker M., Kaşıkçı I., Duru A.D., Ademoğlu A., Öztürk C., Arıkan A., Tarhan N., Demiralp T., “Simultaneous EEG/fMRI analysis of the resonance phenomena in steady-state visual evoked responses.” Clin EEG Neurosci. 2011; 42(2):98-106. paper

Thesis

My PhD thesis Tensor analysis of neuroimaging data

Talks and Presentations

  1. E. Karahan “Individual Variability in Multimodal Connectome”, MEGUK in 2021.
  2. E. Karahan “Novel Analysis Methods for Neural Data”, Izmir Katip Celebi University in 2019.
  3. E. Karahan “Trace back from behavior to brain: when and how do you make decisions?” talk given in Cardiff Soapbox Science event in 2019
  4. E. Karahan P.A. Valdes-Sosa, “Tensor based Granger Causality models for brain connectivity”, Talk given at the work- shop “The impact of oxytocin on prosocial behavior: a multi-methodological approach” in 2016.
  5. E. Karahan P.A. Valdes-Sosa, “Tensor Methods for neuroimaging”, Talk given at the workshop “The Neural plasticity, functional reorganization and network reconfiguration of the human brain after traumatic brain injury in cognitive, language and attention processing” in 2016.
  6. E. Karahan P.A. Valdes-Sosa, “Big Data Analysis in EEG Source Imaging” Talk given at the workshop “Controversies in EEG source imaging (ESI)” in 2014.
  7. E. Karahan A. Ademoglu, “Simultaneous EEG/fMRI Analysis of Steady-State Visual Evoked Responses” presentation given at “Lausanne and Geneva Training Centre: Imaging Brain Function in Animals and Humans” in 2011.
  8. E. Karahan A. Akın, “An ARX model approach to fNIRS data acquired from migraine and healthy subjects,” presenta- tion given at “National Biomedical Engineering Conference” in 2008.

Conference Proceedings

  1. Karahan, E., Tait L., Si R., Ozkan A., Szul M., Lawrence A., Zhang J., Individual variability in the human connectome maintains selective cross-modal consistency and shares microstructural signatures, OCNS, 2021.
  2. Karahan, E., Costigan A. G., Graham K. S. , Lawrence A. D., Zhang J., “Microstructural variability along sensorimotor pathways contributes to simple reaction time”, Organization for Human Brain Mapping Annual Meeting, Rome, Italy 2019.
  3. Karahan, E., Costigan A. G., Graham K. S. , Lawrence A. D., Zhang J., “Distributed microstructural variability con- tributes to individual differences in simple reaction time”, Organization for Human Brain Mapping Annual Meeting, Singapore, 2018.
  4. Karahan, E. P.A. Rojas-Lopez, P.A. Valdes-Sosa, “Granger Causality Analysis in the Tensor Framework”, Organization for Human Brain Mapping Annual Meeting, Geneva, Switzerland, 2016.
  5. P.A. Rojas-Lopez, Karahan, E. P.A. Valdes-Sosa, “Multidimensional EEG source reconstruction: A Tensor Based Ap- proach”, Organization for Human Brain Mapping Annual Meeting, Geneva, Switzerland, 2016.
  6. M.L. Bringas, P. A. Rojas-Lopez, Karahan, E. P.A. Valdes-Sosa, P.A. Valdes-Hernandez, “Detecting White Matter Deter- minants of the EEG Alpha Rhythm by Tensor Partial Least Squares”, Organization for Human Brain Mapping Annual Meeting, Geneva, Switzerland, 2016.
  7. S. Hu, Y. Lai, Karahan, E. P. A. Valdes-Sosa, D. Yao, “How do the Reference Montage and Electrode Layout affect the Measured Scalp EEG Potentials?”, Organization for Human Brain Mapping Annual Meeting, Geneva, Switzerland, 2016.
  8. Karahan, E. P.A. Rojas-Lopez, P.A. Valdes-Sosa, “Granger Causality as a Tensor Regression”, Workshop on Tensor Decompositions and Applications, Leuven, Belgium, 2016.
  9. M. Assem, M. H. Alpsan, Karahan, E. A. Bayram, B. Bilgiç, H. Gürvit, A. Ademoğlu, T. Demiralp, “fMRI Responses of Alzheimer’s Disease and Mild Cognitive Impairment Patients during Target Detection”, Organization for Human Brain Mapping Annual Meeting, Hamburg, Germany, 2014.
  10. A. Bayram, Karahan, E. B. Bilgiç, A. Ademoğlu, T. Demiralp, “Temporal Frequency Responses of Human Geniculate Nucleus and Primary Visual Cortex in fMRI”, Organization for Human Brain Mapping Annual Meeting, Hamburg, Germany, 2014.
  11. Karahan, E. A. D. Deniz Duru, P. A. Valdes-Sosa, A. Ademoğlu, “EEG-fMRI fusion on the cortical surface using Coupled Tensor-Matrix Factorization: A simulation study”, Neuroinformatics Conference, Stockholm, Sweden, 2013.
  12. Karahan, E. M. Özker, A. Bayram, Z. Bayraktaroglu, B. Erdoğan, I. Kaşıkçı, C. Öztürk, A. Ademoğlu, T. Demiralp, “Simultaneous EEG/fMRI Analysis of Steady-State Visual Evoked Responses”, Organization for Human Brain Mapping Annual Meeting, Quebec City, Canada, 2011.
  13. M. Sevgi, Karahan, E. A. Bayram, A.D. Duru, C. Öztürk, A. Ademoğlu, T. Demiralp, “A Group Study on BOLD Change to the Steady State Visual Stimuli with Bayesian Inference”, Organization for Human Brain Mapping Annual Meeting, Quebec City, Canada, 2011.
  14. T. Demiralp, A. Bayram, Karahan, E. B. Bilgiç, N. Tarhan and A. Ademoğlu, “Frequency response characteristics of lateral geniculate nucleus and primary visual cortex”, Front. Hum. Neurosci. Conf. Abs.: 11th International Conference on Cognitive Neuroscience, 2011.15. A. Bayram, A. Ademoğlu, Karahan, E. B. Bilgiç, AD Duru, N. Tarhan, T. Demiralp, “Visual Stimulation Frequency Dependent Changes in BOLD Transients”, Front. Hum. Neurosci. Conf. Abs.: 11th International Conference on Cognitive Neuroscience, 2011.
  15. I. Kaşıkçı, A. Bayram, Karahan, E. B. Bilgiç, A. Ademoğlu, T. Demiralp, “Hemodynamic correlates of brain electrical oscillations related with working memory”, Front. Hum. Neurosci. Conf. Abs.: 11th International Conference on Cognitive Neuroscience, 2011.
  16. Karahan, E. M. Özker, B. Erdoğan, A. Bayram, Z. Bayraktaroglu, C. Öztürk, A. Ademoğlu, T. Demiralp, “Steady State Visual Evoked Potential Informed fMRI Analysis for Alpha, Beta and Gamma Bands”, Organization for Human Brain Mapping Annual Meeting, Barcelona, Spain, 2010.
  17. A.E. Ercan, Karahan, E. O. Özyurt, C. Öztürk, “Comparison of Feature Selection Methods for Classification of Temporal fMRI Volumes Using SVM”, Proc. ISMRM 18th International Conference, Stockholm, Sweden, 2010.
  18. Karahan, E. C. Öztürk, “Nonlinear Modeling of BOLD Signal with Particle Filters”, ESMRMB Antalya, Turkey, 2009.
  19. Karahan, E. C. Öztürk, “Multivariate Classification of fMRI Images”, National Biomedical Engineering Conference (BIYOMUT), Izmir, Turkey, 2009.
  20. M. Yorulmaz, Karahan, E. A. Hamamcı, C. Öztürk, “Mapping of the Visual Cortex: A FreesurferTM-based Approach”, BIYOMUT, Izmir, Turkey, 2009.
  21. Karahan, E. Ö. Özmen-Okur, Ö. Alkan, T. Yıldırım, and C. Öztürk “Studying Familiarity of Different Stimulus Types,” Proc. ISMRM 17th International Conference, Honolulu, USA, 2009.
  22. Karahan, E. A. Akın, H. Bolay “An ARX model approach to fNIRS data acquired from migraine and healthy subjects,” Biomedical Optics, Florida, USA, 2008.