Assoc. Prof. Zübeyir Bayraktaroğlu

Research Interests

  • Cell re-programming
  • Stem Cells
  • Regenerative Medicine
  • Functional Neuroimaging

 

Education

September, 2003 – August, 2009

PhD – Istanbul University, Istanbul Faculty of Medicine, Department of Physiology, Istanbul, Turkey

Thesis “Development of Fast Brain Computer Interface Algorithms Based on Steady State Responses” supervised by Prof. Dr. Tamer Demiralp.

September, 1997 – August, 2003

MD – Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey

 

 

Working Experience

December, 2016 to present

Associate Professor of Physiology in Istanbul Medipol University, International School of Medicine, Department of Physiology, Istanbul, Turkey

October, 2014 – December, 2016

Associate Professor of Physiology in Istanbul University, Istanbul Faculty of Medicine, Department of Physiology, Istanbul, Turkey

December, 2012 – October, 2014

Faculty in Istanbul University, Istanbul Faculty of Medicine, Department of Physiology, Istanbul, Turkey

January, 2010 – February, 2012

      Post-doctoral researcher in Neurophysics Group, Charité Universitätmedizin, Berlin and Center Stroke for Berlin, Berlin, Germany

August, 2004 – November, 2009

Research Assistant in Istanbul University, Istanbul Faculty of Medicine, Department of Physiology, Istanbul, Turkey

 

 

 Peer Reviewed Publications

  1. von Carlowitz-Ghori K, Bayraktaroglu Z, Waterstraat G, Curio G, Nikulin VV. Voluntary control of corticomuscular coherence through neurofeedback: A proof-of-principle study in healthy subjects. Neuroscience, 2015, 290:243-254. doi: 10.1016/j.neuroscience.2015.01.013
  2. von Carlowitz-Ghori K, Bayraktaroglu Z, Hohlefeld FU, Losch L, Curio G, Nikulin VV. Corticomuscular coherence in acute and chronic stroke. Clinical Neurophysiology, 2013, 125(6):1182-1191. doi: 10.1016/j.clinph.2013.11.006
  3. Bayraktaroglu Z, von Carlowitz-Ghori K, Curio G, Nikulin VV. It is not all about phase: Amplitude dynamics in corticomuscular interactions. NeuroImage, 2012, 64C:496-504. doi: 10.1016/j.neuroimage.2012.08.069
  4. Bayraktaroglu Z, von Carlowitz-Ghori K, Losch F, Nolte G, Curio G, Nikulin VV. Optimal imaging of cortico-muscular coherence through a novel regression technique based on multi-channel EEG and un-rectified EMG. NeuroImage, 2011, 57(3):1059-1067. doi: 10.1016/j.neuroimage.2011.04.071
  5. von Carlowitz-Ghori K, Hohlefeld FU, Bayraktaroglu Z, Curio G, Nikulin VV. Effect of complete stimulus predictability on P3 and N2 components: An EEG study. NeuroReport, 2011, 22(9):459-463. doi: 10.1097/WNR.0b013e3283476bdb
  6. Bayram A, Bayraktaroglu Z, Karahan E, Erdogan B, Bilgic B, Ozker M, Kasikci I, Duru AD, Ademoglu A, Ozturk C, Arikan K, Tarhan N, Demiralp T. Simultaneous EEG/fMRI Analysis of the Resonance Phenomena in Steady-State Visual Evoked Responses. Clinical EEG and Neuroscience, 2011, 42(2):98-106. doi: 10.1177/155005941104200210
  7. Emir UE, Bayraktaroglu Z, Ozturk C, Ademoglu A, Demiralp A. Changes in BOLD transients with visual stimuli across 1–44Hz. Neuroscience Letters, 2008, 436(2):185-188. doi: 10.1016/j.neulet.2008.03.021
  8. Demiralp T, Bayraktaroglu Z, Lenz D, Junge S, Busch NA, Maess B, Ergen M, Herrmann CS. Gamma amplitudes are coupled to theta phase in human EEG during visual perception. International Journal of Psychophysiology, 2007, 64(1):24-30. doi: 10.1016/j.ijpsycho.2006.07.005
  9. Duru AD, Eryilmaz H, Emir U, Bayraktaroglu Z, Demiralp T, Ademoglu A. Implementation of low resolution electro-magnetic tomography with FMRI statistical maps on realistic head models. IEEE Conference Proceedings, Engineering in Medicine and Biology Society, 2007, 1:5239-42. doi: 10.1109/IEMBS.2007.4353523
  • Bayraktaroglu Z, Demiralp T, Lenz D, Junge S, Busch NA, Maess B, Ergen M, Herrmann CS. Interactions of Gamma and Theta Oscillations in the Electroencephalogram (EEG) during Memory Processes. IEEE Conference Proceedings, Signal Processing and Communications Applications, 2006, 1-4.
    doi: 10.1109/SIU.2006.1659833
  • Kirmizi-Alsan E, Bayraktaroglu Z, Gurvit H, Keskin YH, Emre M, Demiralp T. Comparative analysis of event-related potentials during Go/NoGo and CPT: decomposition of electrophysiological markers of response inhibition and sustained attention. Brain Research, 2006, 1104(1):114-28. doi: 10.1016/j.brainres.2006.03.010
  • Ergenoglu T, Demiralp T, Bayraktaroglu Z, Ergen M, Beydagi H, Uresin Y. Alpha rhythm of the EEG modulates visual detection performance in humans. Cognitive Brain Research, 2004, 20(3):376-83. doi: 10.1016/j.cogbrainres.2004.03.009
  • Yilmaz G, Midilli K, Turkoglu S, Bayraktaroglu Z, Kuskucu AM, Ozkan E, Atasever L, Calangu S, Altas K. Genetic subtypes of human immunodeficiency virus type 1 (HIV-1) in Istanbul, Turkey. International Journal of Infectious Diseases, 2006, 10(4):286-90. doi: 10.1016/j.ijid.2005.06.011

 

 

Selected Presentations & Invited Talks

  1. Duru AD, Bayraktaroglu Z, Kurt E, Ulaşoğlu Ç, Göksel Duru D, Ademoglu A, Demiralp T. Source Concordance Analysis of Simultaneously Recorded Steady State Visual Evoked Potentials & fMRI. https://ww4.aievolution.com/hbm1401/index.cfm?do=abs.pubSearchAbstracts&hasDocuments=1, no. 2258. Organization of Human Brain Mapping, Hamburg, Germany, June 2014
  2. Tezel-Bayraktaroglu O, Bayraktaroglu Z, Demiralp T, Oge E. Inhibition of Right Pars Triangularis Anterior Reduces Stuttering: An rTMS Study.

https://ww4.aievolution.com/hbm1401/index.cfm?do=abs.pubSearchAbstracts&hasDocuments=1, no. 3732. Organization of Human Brain Mapping, Hamburg, Germany, June 2014

  1. von Carlowitz-Ghori K, Bayraktaroglu Z, Waterstraat G, Nikulin VV, Curio G. Neurofeedback based on corticomuscular coherence.

https://ww4.aievolution.com/hbm1401/index.cfm?do=abs.pubSearchAbstracts&hasDocuments=1, no. 3775. Organization of Human Brain Mapping, Hamburg, Germany, June 2014

  1. Bayraktaroglu Z, von Carlowitz-Ghori K, Curio G, Nikulin VV. Amplitude dynamics in corticospinal interactions. Klinische Neurophysiologie, p. 90. 56th Jahrestagung der Deutschen Gesellschaft für Klinische Neurophysiologie und Funktionelle Bildgebung, Cologne, Germany, March 2012
  2. Bayraktaroglu Z, von Carlowitz-Ghori K, Losch F, Nolte G, Curio G, Nikulin VV. Rectification of EMG reduces cortico-muscular coherence: multichannel EEG study. Clinical Neurophysiology Supplement 1, p. S70. 14th European Congress on Clinical Neurophysiology, Rome, Italy, June 2011
  3. Bayraktaroglu Z, von Carlowitz-Ghori K, Losch F, Nolte G, Curio G, Nikulin VV. Rectification of surface EMG impairs cortico-muscular coherence estimation. Klinische Neurophysiologie, p. 362. 55th Jahrestagung der Deutschen Gesellschaft für Klinische Neurophysiologie und Funktionelle Bildgebung, Münster, Germany, March 2011
  4. Bayraktaroglu Z, Curio G, Nikulin VV. A Novel Method For Optimal Estimation Of Cortico-Muscular Coherence Based On Multi-Channel EEG/MEG Recordings. Abstract Book, p. 23. Berlin Neuroscience Forum, Berlin, Germany, June 2010
  5. Karahan E, Özker M, Bayram A, Bayraktaroğlu Z, Erdoğan B, Kaşıkçı I, Öztürk C, Ademoğlu A, Demiralp T. Simultaneous EEG/fMRI Analysis of Steady-State Visual Evoked Responses. Abstract Book, p. 135. 17th Annual Meeting of the Organization for Human Brain Mapping, Quebec, Canada, June 2011
  6. Bayraktaroglu Z, Curio G, Nikulin VV. A Novel Method For Optimal Estimation Of Cortico-Muscular Coherence Based On Multi-Channel EGG/MEG Recordings. 29th International Congress of Clinical Neurophysiology, Kobe, Japan, October 2010
  • Demiralp T, Bayraktaroglu Z, Bayram A, Duru AD, Bilgiç B, Ademoglu A. Hemodynamic Correlates of Evoked Brain Rhythms: An Approach to EEG-fMRI Fusion Based on Steady-State Evoked Responses. Journal of Clinical EEG and Neuroscience, October 2010. Clinical EEG and Neuroscience Society Meeting, Istanbul, Turkey, September 2010
  • Karahan E,   Ozker M,   Erdogan B,  Bayraktaroglu Z,   Bayram A, Ozturk C,  Ademoglu A, Demiralp T. Steady State Visual Evoked Potential Informed fMRI Analysis for Alpha, Beta and Gamma Bands. 16th Annual Meeting of the Organization for Human Brain Mapping, Barcelona, Spain, June 2010
  • Yildirim E, Bayraktaroglu Z, Uslu A, Demiralp T. Detection of Malingering by Electrophysiological Methods. Abstract book, p. 129-130. 6th International Cognitive Neuroscience Meetings, Marmaris, Turkey, April 2009
  • Emir UE, Bayraktaroglu Z, Ozturk C, Ademoglu A, Demiralp T. Dependency of BOLD transients on the frequency of flickering visual stimuli. Frontiers in Human Neuroscience, 2008. 10th International Conference on Cognitive Neuroscience, Bodrum, Turkey, September 2008. doi: 10.3389/conf.neuro.09.2009.01.346
  • Erdogan B, Bayraktaroglu Z, Bayram A, Bilgic B, Olmez T. Artifact reduction performance of different algorithms for simultaneous recordings of EEG and fMRI. Frontiers in Human Neuroscience, 2008. 10th International Conference on Cognitive Neuroscience, Bodrum, Turkey, September 2008. doi: 10.3389/conf.neuro.09.2009.01.348
  • Ergen M, Saban S, Kirmizi-Alsan E, Bayraktaroglu Z, Uslu A, Gurvit H, Demiralp T.
    Event-related brain oscillations associated with color-word interference. Frontiers in Human Neuroscience, 2008. 10th International Conference on Cognitive Neuroscience, Bodrum, Turkey, September 2008. doi: 10.3389/conf.neuro.09.2009.01.181
  • Cebeci B, Gürkan G, Bayraktaroglu Z, Uslu A, Olmez T, Akan A. Estimating Sedation Depth Using Correlation Dimension of Spontaneous EEG and Auditory Steady-State Responses. Frontiers in Human Neuroscience, 2008. 10th International Conference on Cognitive Neuroscience, Bodrum, Turkey, September 2008. doi: 10.3389/conf.neuro.09.2009.01.292
  • Bayraktaroglu Z, Emir UE, Ozturk C, Ademoglu A, Demiralp T. BOLD related to Steady State Evoked Potentials. Abstract Book, p.32. Lemanic Neuroscience Annual Meeting, Les Diablerets, Switzerland, September 2007
  • Bayraktaroglu Z, Emir UE, Ozturk C, Ademoglu A, Demiralp T. BOLD changes during driven electrical oscillations in human brain. International Journal of Psychophysiology, 2006; 61(suppl):368. 13th World Congress of Psychophysiology, Istanbul, Turkey, August 2006
  • Bayraktaroglu Z, Ergenoglu T, Kırmızı-Alsan E, Demiralp T. Decompostion of the response mode effects in oddball ERPs. International Journal of Psychophysiology, 2006; 61(suppl):370. 13th World Congress of Psychophysiology, Istanbul, Turkey, August 2006
  • Bayraktaroglu Z, Eryasar B, Bilgic B, Hanagasi H, Gurvit H, Emre M, Demiralp T. Time-frequency analysis of Event-Related Potentials (ERPs) in mild Alzheimer Disease (AD). Abstract Book, p. 316. International Conference on Cognitive Neuroscience (ICON) IX, Havana, Cuba, September 2005
  • Bayraktaroglu Z, Ergenoglu T, Yildirim O, Devrim M, Beydagi H, Demiralp T. Alpha Rhythm of the EEG Modulates Visual Detection Performance in Humans. Leipzig Series in Cognitive Sciences 5, p. 107. EPIC XIV, Leipzig, Germany, March 2004
  • Demiralp T, Bayraktaroglu Z, Ademoglu A, Dilber B, Yildirim O. A User-Friendly ERP Analysis Software with Time-Frequency and Spatial Decomposition Facilities. Leipzig Series in Cognitive Sciences 5, p. 89. EPIC XIV, Leipzig, Germany, March 2004
  • Kirmizi Alsan E, Bayraktaroglu Z, Gurvit H, Emre M, Demiralp T. Comparative Analysis of Event Related Potentials During Go-Nogo, CPT and Stroop Tests : Decomposition of Electrophysiological Markers of Response Inhibition, Sustained Attention and Resistance to Interference. Leipzig Series in Cognitive Sciences 5, p. 178. EPIC XIV, Leipzig, Germany, March 2004
  • Yilmaz G, Midilli K, Turkoglu S, Kuskucu AM, Bayraktaroglu Z, Aksozek A, Ozkan E, Calangu S, Altas K. Genetic Subtypes of HIV-1 in Istanbul, Turkey. Journal of Clinical Virology 2003, 27:55. VI. Annual Meeting of European Society of Clinical Virology, Lyon, France, August 2003

 

Projects

  1. Neurotechnology Research and Application Laboratory. PI: Prof. Dr. Tamer Demiralp. Supported by Istanbul Development Agency.
  2. Corticomuscular Coherence in Stroke. PI: Vadim V. Nikulin, PhD. Supported by Center for Stroke Research Berlin.
  3. Investigation of Neurologic Effects of Regional Anesthesia by EEG and Auditory Evoked Potentials: Monitorization of Sedation Level and Depth of Anesthesia. PI: Assoc. Prof. Dr. Tulay Ozkan Seyhan. Supported by Istanbul University, Scientific Research Projects Unit.
  4. Dynamic Localisation of Cognitive Processes: Analysis of the Generation Mechanisms of Event-Related Brain Potantials (ERPs) Using Transcranial Magnetic Stimulation (TMS) and Intracranial Recordings. PI: Prof. Dr. Ali Emre Oge. Supported by Istanbul University, Scientific Research Projects Unit.
  5. Investigation of Neurovascular Coupling with fMRI and Steady-State Evoked Potentials. PI: Prof. Dr. Tamer Demiralp. Supported by Istanbul University, Scientific Research Projects Unit and The Scientific and Technological Research Council of Turkey.
  6. Assesment of Electrophysiologic Processes during Neuropsychological Tests Generally Used in Clinical Practice. PI: Prof. Dr. Tamer Demiralp. Supported by Istanbul University, Scientific Research Projects Unit.
  7. Development of Electroencephalography (EEG) Signal Analysis Techniques for Brain Computer Interface (BCI) Systems. PI: Prof. Dr. Mujdat Cetin. Supported by The Scientific and Technological Research Council of Turkey.

 

Teaching & Mentoring Experience

Graduate Level

Spring 2016       Advanced Cell Physiology

Basic Laboratory Technics in Physiology

Fall 2015   Advanced Techniques in Cognitive Neuroscience

Spring 2014       Functional Neuroimaging

Fall 2014         Cognitive Electrophysiology

Undergraduate Level

2012 –            Medical Physiology

2004 – 2009 Medical Physiology

 

Trainings and Research Visits

  • Neuron Culture Workshop. Istanbul Medipol University, Regenerative and Restorative Medicine Research Center. 26-29th March, 2016, Istanbul, Turkey
  • Imaging Brain Function: From Behavior to Diseases. PENS (FENS/IBRO) Training Center. September 9-29th, 2007, Lausanne & Geneva, Switzerland
  • Correlation of SSVEP – fMRI BOLD response for Gamma Response, project visit. Otto Von Guericke University, Magdeburg, Institute of Biological Psychology, Prof. Dr. Christoph Herrmann, September – November 2006, Magdeburg, Germany
  • Training on genetic analysis of HIV in the Center for Disease Control, Atlanta, Danuta Pieniazek, PhD, October – November, 2002, Atlanta, Georgia, USA

 

Awards & Honors

  1. Abdi Ibrahim – Brain Research Association, Turkey. Project Support Grant. Investigation of Neurovascular Coupling with fMRI and Steady-State Evoked Potentials. Cengizhan Ozturk, Zubeyir Bayraktaroglu, Uzay Emrah Emir, 2006
  2. Gen Ilac-Wyeth – Brain Research Association, Turkey. Travel and Training Grant. Changes Observed in BOLD Response under High Frequency Stimulation. Zubeyir Bayraktaroglu, 2006
  3. IBRO Awardee for ICON IX Congress, 2005
  4. TUBITAK (Turkish Research and Technology Council) Travel Grant, 2005
  5. Lundbeck – Brain Research Association, Turkey. Project Support Grant. Assesment of Electrophysiologic Processes during Neuropsychological Tests Generally Used in Clinical Practice. Tamer Demiralp, Hakan Gurvit, Murat Emre, Elif Kirmizi, Hasmet Hanagası, Basar Bilgic, Zubeyir Bayraktaroglu, Bahar Eryasar, 2003

 

 

Editorial Boards

Journal of Behavioral Sciences

Journal of Istanbul Faculty of Medicine

 

Memberships

Organization of Human Brain Mapping

Brain Research Association, Turkey (Executive Committee Member)

Turkish Society of Physiological Sciences