Selected Publications

Ayaz H, Cakir M P, Izzetoglu K, Curtin A, Shewokis P A, Bunce S, Onaral, B (2012) Monitoring Expertise Development during Simulated UAV Piloting Tasks using Optical Brain Imaging, IEEE Aeroscpace Conference, March 3-10, 2012, BigSky, MN, USA.

Kuruvilla M S, Green J R, Hogan T, Yunusova Y, Ayaz H (2012) Using functional near infra-red spectroscopy to determine ALS-related motor, cognitive, and language deficits, Conference on Motor Speech, February 29-March 4, 2012, Santa Rosa, California.

Ayaz H, Shewokis P A, Bunce S, Izzetoglu K, Willems, B, Onaral, B (2012) Optical Brain Monitoring for Operator Training and Mental Workload Assessment, Neuroimage, 59(1), 36-47. doi: 10.1016/j.neuroimage.2011.06.023.

Ayaz H, Shewokis P A, Curtin, A, Izzetoglu, M, Izzetoglu K, Onaral B, (2011) Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation. Journal of Vis Exp. doi: 10.3791/3443.

Kuruvilla M S, Green J R, Hogan T, Yunusova Y, Ayaz H (2011) Using functional near infra-red spectroscopy to determine ALS-related motor, cognitive, and language deficits, American Speech, Language, and Hearing Association Convention, November 16-19 2011. San Diego, CA, USA

Cakir M P, Ayaz H, Izzetoglu M, Shewokis P A, Izzetoglu K, Onaral B. (2011). Bridging Brain and Educational Sciences: An Optical Brain Imaging Study of Visuospatial Reasoning. Procedia - Social and Behavioral Sciences, 29(0), 300-309. doi: 10.1016/ j.sbspro.2011.11.243

Ayaz H, Shewokis P A, Izzetoglu K, Izzetoglu M, Onaral B (2011). fnirSoft: Comprehensive Signal Processing & Analysis Platform for Optical Brain Imaging, Society of Neuroscience, November 12-16, 2011, Washington DC, USA

Handa S, Ayaz H, Curtin A, Shewokis P A, Onaral B. (2011) Visualization of functional near infrared spectroscopy data on 3D brain model, BMES Biomedical Engineering Society Annual Meeting, October 12-15, 2011, Hartford, Connecticut, USA

Curtin A, Ayaz H, Shewokis P A, Onaral B. (2011) P300 based EEG-BCI for spatial navigation, BMES Biomedical Engineering Society Annual Meeting, October 12-15, 2011, Hartford, Connecticut, USA

Noyan B, Ayaz H, Shewokis P A (2011) ThinkTank: A Brain Computer Interface Game, BMES Biomedical Engineering Society Annual Meeting, October 12-15, 2011, Hartford, Connecticut, USA

Izzetoglu K, Ayaz H, Merzagora A, Izzetoglu M, Shewokis P A, Bunce S C, Pourrezaei K, Rosen A, Onaral B, (2011) The evolution of field deployable fNIR spectroscopy from bench to clinical settings, Journal of Innovative Optical Health Sci., Vol. 4, No. 3 p 1-12. doi: 10.1142/S1793545811001587

Ayaz H, Shewokis P A, Bunce S, Onaral B (2011). An Optical Brain Computer Interface for Environmental Control. 33nd Annual International IEEE EMBS Conference, August 29 – September 4, 2011, Boston, USA

Sweeney K T, Ayaz H, Ward T E, McLoone S, Izzetoglu M, Onaral B (2011). A Methodology for Validating Artifact Removal Techniques for fNIRS. 33nd Annual International IEEE EMBS Conference, August 29 – September 4, 2011, Boston, USA

Onaral B, Ayaz H, Izzetoglu M, Izzetoglu K, Solt D, Ben Dor B. (2011) Update on a handheld brain hematoma detector project. Advanced Technology Applications for Combat Casualty Care, 15-18 August 2011, Fort Lauderdale, Florida

Gokcay D, Cakir M, Gozenman F, Arslan B, Ciftcioglu M, Taskin K, Ayaz H. (2011) Changing pattern search component during probability learning: a study using fNIR neuroimaging. 17th Annual Meeting of the Human Brain Mapping, June 26-30, 2011, Quebec, Canada.

Ayaz H, Shewokis P A, Onaral B (2011) Functional Near Infrared Spectroscopy based Brain Computer Interface. International Workshop on Frontiers of Neural Engineering, March 29-30, 2011, Zhejiang University, Hangzhou, China.

Ayaz H, Willems B, Bunce S, Shewokis P A, Izzetoglu K, Hah S, Deshmukh A, Onaral B (2011). Estimation of Cognitive Workload during Simulated Air Traffic Control using Optical Brain Imaging Sensors. 14th International Conference on Human-Computer Interaction, 9-14 July 2011, Florida, USA

Shewokis P A, Ayaz H, Izzetoglu M, Bunce S, Gentili R J, Sela I, Izzetoglu K, Onaral B (2011).Brain in the Loop: Assessing Learning Using fNIR in Cognitive and Motor Tasks. 14th International Conference on Human-Computer Interaction, 9-14 July 2011, Florida, USA

Izzetoglu K, Ayaz H, Menda J, Izzetoglu M, Merzagora A, Shewokis P A, Pourrezaei K, Onaral B (2011). Applications of Functional Near Infrared Imaging: Case Study on UAV Ground Controller. 14th International Conference on Human-Computer Interaction, 9-14 July 2011, Florida, USA

Bunce S, Izzetoglu K, Ayaz H, Shewokis P A, Izzetoglu M, Pourrezaei K, Onaral B (2011).Implementation of fNIRS for Monitoring Levels of Expertise and Mental Workload. 14th International Conference on Human-Computer Interaction, 9-14 July 2011, Florida, USA

Hah S, Willems B, Ayaz H, Bunce S, Izzetoglu K, Deshmukh A (2011). The Comparison of Air Traffic Controllers’ To College Students’ Memory Performance and Brain Activities. 16th International Symposium on Aviation Psychology, May 2-5, 2011, Dayton, Ohio, USA

Ayaz, H, Ben Dor B, Solt D, Onaral B (2011) Infrascanner: Cost effective, mobile medical imaging system for detecting hematomas, Proceedings of the 2011 Design of Medical Devices Conference, April 12-14, 2011, Minneapolis, MN, USA

Oum K, Ayaz H, Shewokis P A, Diefenbach, P (2010). MindTactics: A Brain Computer Interface Gaming Platform. Proceedings of 2nd International IEEE Games Innovation Conference Hong Kong, China, (pp. 1-5).

Ayaz H, Onaral, B (2010). Functional Near Infrared Spectroscopy based Brain Computer Interface. PhD Thesis, Drexel University, Philadelphia, PA.

Ayaz H, Willems B, Bunce S, Shewokis P A, Izzetoglu K, Hah S, Deshmukh A, Onaral B (2010). Cognitive Workload Assessment of Air Traffic Controllers Using Optical Brain Imaging Sensors. In T. Marek, W. Karwowski & V. Rice (Eds.), Advances in Understanding Human Performance: Neuroergonomics, Human Factors Design, and Special Populations (pp. 21-32): CRC Press, Taylor & Francis Group.

Ayaz H, Izzetoglu M, Shewokis P A, Onaral B. (2010) Sliding-window Motion Artifact Rejection for Functional Near-Infrared Spectroscopy, 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, August 31 - September 4, 2010, Buenos Aires, Argentina

Gentili R J, Hadavi C, Ayaz H, Shewokis P A, Contreras-Vidal J L. (2010) Hemodynamic Correlates of Visuomotor Motor Adaptation by Functional Near Infrared Spectroscopy, 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, August 31 - September 4, 2010, Buenos Aires, Argentina

Cakir M P, Ayaz H, Menda J, Izzetoglu K, Onaral B. (2010) Connecting Brain and Learning Sciences: An Optical Brain Imaging Approach to Monitoring Development of Expertise in UAV Piloting, ICLS 2010, June 29 - July 2 2010, Chicago, IL

Menda J, Hing J T, Ayaz H, Shewokis P A, Izzetoglu K, Onaral B, Oh P (2010) Optical Brain Imaging to Enhance UAV Operator Training, Evaluation, and Interface Development, International Conference on Unmanned Aerial Vehicles, June 21-23, 2010, Dubai, UAE.

Shewokis P A, Ayaz H, Izzetoglu M, Getchell N, Izzetoglu K. (2010) The Acquisition and Learning of Computer Tasks in a Contextual Interference Paradigm: Using Functional Near Infrared Spectroscopy to Examine Prefrontal Cortex Activity, NASPSPA 2010, June 10-12, 2010, Tucson, Arizona

Ruocco A C, Medaglia J D, Ayaz H, & Chute D L (2010) Abnormal prefrontal cortical response during affective processing in borderline personality disorder. Psychiatry Research: Neuroimaging, 182, 117-122.

Ruocco A C, Medaglia J D, Tinker J, Ayaz H, Forman E, Newman C, Williams J M, Hillary F G, Platek S, Onaral B, Chute D. L. (2010). Medial prefrontal cortex hyperactivation during social exclusion in borderline personality disorder. Psychiatry Research: Neuroimaging, 181(3), 233-236.

Ayaz H, Willems B, Bunce S, Shewokis P A, Izzetoglu K, Hah S, Deshmukh A, Onaral B. (2010). Cognitive Workload Assessment of Air Traffic Controllers Using Optical Brain Imaging Sensors, Third International Conference on Applied Human Factors and Ergonomics, July 17-20, 2010, Miami, Florida.

Ayaz H, Bunce S, Willems B, Hah S, Shewokis P A, Izzetoglu K (2010). Working Memory Monitoring of Air Traffic Controllers Using Functional Near Infrared Spectroscopy, Seventeenth Annual Cognitive Neuroscience Society Meeting, April 17-20, 2010, Montreal, Canada.

Leon Carrion J, Merzagora A C, Ayaz H, Izzetoglu K, Izzetoglu M, Shewokis P A, Pourrezaei K, Onaral B (2010). Principles and Clinical Applications of fNIR and EEG Non-Invasive Imaging Techniques, Eighth World Congress on Brain Injury, March 10-14, 2010, Washington, DC.

Izzetoglu K, Shewokis P A, Ayaz H, Onaral B (2009) Functional optical brain imaging: Toward noninvasive cognitive prosthetics. Paper presented at the IEEE International Conference on Rehabilitation Robotics, ICORR 23-26 June 2009, Kyoto, Japan.

Ayaz H, Izzetoglu M, Izzetoglu K, Onaral B, Ben Dor B (2009). Infrascanner: cost effective, mobile medical imaging system for detecting hemotomas. LifeSci 2009, Bogazici University, December 22-23, 2009, Istanbul.

Ayaz H, Merzagora A C, Izzetoglu M, Izzetoglu K, Shewokis P A, Pourrezaei K, Onaral B (2009). Functional Optical Brain Imaging: Applications and system development. LifeSci 2009, Bogazici University, December 22-23, 2009, Istanbul.

Ayaz H, Shewokis P, Bunce S, Schultheis M, Onaral B (2009). Assessment of Cognitive Neural Correlates for a Functional Near Infrared-based Brain Computer Interface System. Dylan D. Schmorrow at al. (Eds.): Augmented Cognition, HCII 2009, Lecture Notes on Artificial Intelligence, 2009, vol. 5638: 699-708, Springer-Verlag, Berlin Heidelberg

Merzagora A, Ayaz H, Izzetoglu M, Onaral B, Shewokis P A, (2009) "fNIR study of prefrontal activity during eyes-open and eyes-closed conditions", 15th Annual Meeting of the Organization for Human Brain Mapping, June 18-23 2009, San Francisco, CA.

Shewokis P A , Ayaz H , Izzetoglu K , Izzetoglu M , Bunce, S C , Schultheis M T , Pourrezaei K , (2008) "Dorsolateral prefrontal cortex activity druing the learning of computer tasks in a contextual interference paradigm using fNIRs: A case series", The North American Society for the Psychology of Sport and Physical Activity Conference, Ontario, Canada, June 2008

Ayaz H , Levin S , Platek S , Onaral B , (2008) "Maze Suite 1.0: A complete set of tools to prepare, present and analyze navigational & spatial cognitive neuroscience experiments", Behavior Research Methods, 40(1), 353-359

Izzetoglu K , Ayaz H , Merzagora A, Izzetoglu M , Bunce S C , Shewokis P A , Pourrezaei K , and Onaral B , (2008) fNIR Spectroscopy Studies in Humans. Frontiers in Human Neuroscience. Conference Abstract: 10th International Conference on Cognitive Neuroscience. doi: 10.3389/conf.neuro.09.2009.01.356

Ayaz H , Izzetoglu M , Bunce S C, Heiman-Patterson T , Onaral B. (2007) Detecting cognitive activity related hemodynamic signal for brain computer interface using functional near infrared spectroscopy, 3rd IEEE Neuroengineering Conference, Hawaii, pages 342-345

Ruocco A C , Merzagora A C, Allen S L, Schultheis M T, Tuscan L, Lake T, Irani F, Ayaz H, Onaral B. & Chute D L (2007). FNIRS measurement of cerebral blood flow in a subject with unilateral lesion of the left frontal lobe. The Canadian Journal of Neurological Sciences, 34, S124-125.

Ruocco A C, Merzagora A C, Allen S L, Schultheis M T, Tuscan L-A, Lake T, Irani F, Ayaz H, Onaral B, Chute D, (2007). One-Month Test-Retest Reliability of fNIRS during Verbal Fluency in a Subject with Discrete Lesion of the Left Frontal Lobe. Proc. of 27th Ann. Conf. of NAN

Yurtsever G, Ayaz H, Kepics F, Onaral B, Pourrezaei K, (2007) "Wireless, Continuous Wave Near Infrared Spectroscopy System for Monitoring Brain Activity", Review of Scientific Instruments, Unpublished

Ayaz H, Izzetoglu M, Izzetoglu K, Pourrezaei K, and Onaral B. (2006) "ACOBI: A tool for fNIR data processing and visualization", Annual Meeting of The Biomedical Engineering Society, October 2006, Chicago

Ayaz H, Levin S, Platek S, Onaral B. (2006) "MazeSuite: Navigational and Spatial cognitive Neuroscience Experimentation Toolset", Annual Meeting of The Biomedical Engineering Society, October 2006, Chicago

Ayaz H, Izzetoglu M, Platek S M, Bunce S, Izzetoglu K, Pourrezaei K, and Onaral B. (2006) "Registering fNIR Data to Brain Surface Image using MRI templates", 28th IEEE EMBS Annual International Conference, New York, pages: 2671-2674

Ayaz H, Levin S, Platek S, Onaral B. (2006) "MazeSuite: A Complete Set of Tools to Prepare, Present and Analyze Navigational & Spatial Evolutionary Cognitive Neuroscience Experiments", 18th Annual meeting of the Human Behavior and Evolution Society, Philadelphia, June 2006.

Levin S L, Krawczyk M, Ayaz H, Platek S, (2006) "fNIRs, Mazes, and Spatial Cognition", 18th Annual meeting of the Human Behavior and Evolution Society, Philadelphia, June 2006.

Ayaz H, Onaral B. (2005) "Analytical Software and Stimulus-Presentation Platform to Utilize, Visualize and Analyze Near-infrared Spectroscopy Measures", Masters Degree Thesis, Drexel University.

Izzetoglu M, Izzetoglu K, Bunce S, Ayaz H, Devaraj A, Onaral B, Pourrezaei K. (2005) "Functional Near-Infrared Neuroimaging", IEEE Transactions On Neural Systems And Rehabilitation Engineering, Vol. 13, No. 2.

Platek S M, Fonteyn L, Izzetoglu M, Myers T E, Ayaz H, Li C and Chance B. (2005) "Functional near infrared spectroscopy reveals differences in self-other processing as a function of schizotypal personality traits", Schizophrenia Research, February 2005, Volume 73, Issue 1 , Pages 125-127.

Ayaz H, Devaraj A, Kepics F, Izzetoglu M, Izzetoglu K, Onaral B, Pourrezaei K. (2005) "System characterization of the continuous wave functional Near Infrared (cwfNIR) neuroimager", Proceedings of the 2005 BMES Annual Meeting of the Biomedical Engineering Society, Baltimore, MD, 28 September - 1 October 2005, 1292.

Ayaz H, Platek S, Izzetoglu K, Onaral B. (2004). "Brain template registration for fNIR Spectroscopy". Proceedings of the 2004 BMES Annual Meeting of the Biomedical Engineering Society, Philadelphia, PA, 13-16 October 2004, 722.

Ayaz H, Devaraj A, Izzetoglu K, Kepics F, & Pourrezaei K. (2004) "Optimized data acquisition schema for NIR spectroscopy", Proceedings of the 2004 BMES Annual Meeting of the Biomedical Engineering Society, Philadelphia, PA, 13-16 October 2004, 469.

Ayaz H, Bozma H I. (2003) "Vision Guided Robotic Manipulation", Bachelor Degree Thesis, Bogazici Univesity.

Sao, V., Pourrezaei, K., Akin, A. and Ayaz H. (2003) "Breast tumor imaging using NIR LED based handheld continuous-wave imager", Proceedings of the IEEE 29th Annual Northeast Bioengineering Conference, 22-23 March 2003 Pages: 55-56

Alp U, Ayaz H, Karadeniz M, Dikici C and Bozma H I (2003) "Remote Control of a Robot over the Internet." Proc. of SIU 2003, Istanbul.

Dikici C, Alp U, Ayaz H, Karadeniz M, Civanlar R and Bozma H I, (2003) "Fovea based Real-Time Video Processing and Streaming" Proc. of SIU 2003, Istanbul.


Other

Short notes on B-spline Interpolation [pdf]

Short notes on Digital filters [pdf]

Short notes on Discrete Systems [pdf]