Chris Fietkiewicz
Chris FietkiewiczAssistant Professor of Mathematics & Computer Science
Joined faculty in 2019
Contact Information
Scholarly Interest
High Performance Computing
Research
Neural Simulation
We develop simulators for neuroscience education and research. We currently offer a suite of online simulators as part of the Applied Neural Control Toolkit (https://www.anctoolkit.com), which provides instruction on electrically activating the nervous system. The project is a collaboration with Dr. Thomas Mortimer, from the Biomedical Engineering Department at Case Western Reserve University, Cleveland, Ohio. The simulators allow one to study the complex behavior of neurons and axons, particularly in the context of developing neuroprostheses for the treatment of nervous system disorders, such as paralysis, Parkinson’s disease, and epilepsy. Additionally, we collaborate with Dr. Chen Liu at Tianjin University, Tianjin, China in the development and analysis of models of Parkinson’s disease and the application of deep brain stimulation.
High Performance Computing
We develop techniques for software optimization and parallel computing, with a focus on simulation software. Currently, we are researching the efficiency of multithreading across different open source programming languages. We are building our own research computing cluster and have developed web-based tools for the management of batch programming.
Links
Video: Simulation languages and performance
Publications
K Wang, J Wang, Y Zhu, H Li, C Liu, C Fietkiewicz and KA Loparo (2022). “Adaptive closed-loop control strategy inhibiting pathological basal ganglia oscillations”, Biomedical Signal Processing and Control, https://doi.org/10.1016/j.bspc.2022.103776.
C Liu, Y Yao, J Wang, H Li, H Wu, KA Loparo, and C Fietkiewicz (2022). “Oscillation suppression effects of intermittent noisy deep brain stimulation induced by coordinated reset pattern based on a computational model”, Biomedical Signal Processing and Control, https://doi.org/10.1016/j.bspc.2021.103466.
C Liu, G Zhao, Z Meng, C Zhou, X Zhu, W Zhang, J Wang, H Li, Hao Wu, C Fietkiewicz, and KA Loparo (2021). “Closing the loop of DBS using the beta oscillations in cortex”, Cognitive Neurodynamics, https://doi.org/10.1007/s11571-021-09690-1.
C Fietkiewicz (2019). “Student Outcomes in Parallelizing Recursive Matrix Multiply”, Journal of Computational Science Education, 10(1), 21 – 23, https://doi.org/10.22369/issn.2153-4136/10/1/4
C Fietkiewicz (2019). “Potential Influence of Prior Experience in an Undergraduate-Graduate Level HPC Course”, Journal of Computational Science Education, 10(1), 90 – 92, https://doi.org/10.22369/issn.2153-4136/10/1/15
H Chen, C Fietkiewicz (2018). “Version Control Graphical Interface for Open OnDemand”, Proceedings of the Practice and Experience on Advanced Research Computing (PEARC 18), Article 103, 4 pages. DOI: https://doi.org/10.1145/3219104.3229268.
S Yang, J Wang, B Deng, C Liu, H Li, C Fietkiewicz, and KA Loparo (2018). “Real-Time Neuromorphic System for Large-Scale Conductance-Based Spiking Neural Networks”, IEEE Transactions on Cybernetics, PP(99):1–14, https://doi.org/10.1109/TCYB.2018.2823730.
S Yang, B Deng, J Wang, C Liu, H Li, Q Lin, C Fietkiewicz, and KA Loparo (2018). “Design of Hidden-Property-Based Variable Universe Fuzzy Control for Movement Disorders and Its Efficient Reconfigurable Implementation”, IEEE Transactions on Fuzzy Systems, PP(99):1, https://doi.org/10.1109/TFUZZ.2018.2856182.
C Liu, J Wang, B Deng, H Li, C Fietkiewicz, KA Loparo (2018). “Noise-Induced Improvement of the Parkinsonian State: A Computational Study”, IEEE Transactions on Cybernetics, PP(99):1–10, http://dx.doi.org/10.1109/TCYB.2018.2845359.
C Liu, J Wang, H Li, M Lu, B Deng, H Yu, X Wei, C Fietkiewicz, KA Loparo (2017). “Closed-loop Modulation of the Pathological Disorders of the Basal Ganglia Network”, IEEE Trans on Neural Networks and Learning Systems, 28(2):371–82, http://dx.doi.org/10.1109/TNNLS.2015.2508599.
S Yang, B Deng, J Wang, H Li, C Liu, C Fietkiewicz, KA Loparo (2017). “Efficient implementation of a real-time estimation system for thalamocortical hidden Parkinsonian properties”, Scientific Reports, 7: 40152, http://dx.doi.org/10.1038/srep40152.
C Liu, Y Zhu, F Liu, J Wang, H Li, B Deng, C Fietkiewicz, KA Loparo (2017). “Neural mass models describing possible origin of the excessive beta oscillations correlated with Parkinsonian state”, Neural Networks, 88(2017):65 – 73, http://dx.doi.org/10.1016/j.neunet.2017.01.011.
C Liu, J Wang, H Li, C Fietkiewicz, KA Loparo (2017). “Modeling and Analysis of Beta Oscillations in the Basal Ganglia”, IEEE Transactions on Neural Networks and Learning Systems, PP(99):1, http://dx.doi.org/10.1109/TNNLS.2017.2688426.
F Liu, J Wang, C Liu, H Li, B Deng, C Fietkiewicz, KA Loparo (2016). “A neural mass model of basal ganglia nuclei simulates pathological beta rhythm in Parkinson's disease”, Chaos, 26(12):123113, http://dx.doi.org/10.1063/1.4972200.
C Liu, J Wang, B Deng, X Wei, H Yu, H Li, C Fietkiewicz, KA Loparo (2016). “Closed-loop Control of Tremor-predominant Parkinsonian State Based on Parameter Estimation: A Computational Study”, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.PP, no.99, pp.1-12, http://dx.doi.org/10.1109/TNSRE.2016.2535358.
C Fietkiewicz and KA Loparo (2016). “Analysis and Enhancements of a Prolific Macroscopic Model of Epilepsy”, Scientifica, 2016:3628247, http://dx.doi.org/10.1155/2016/3628247.
C Fietkiewicz, GO Shafer, EA Platt, CG Wilson (2016). “Variability in respiratory rhythm generation: in vitro and in silico models”, Communications in Nonlinear Science and Numerical Simulation, 32:158-168, http://dx.doi.org/10.1016/j.cnsns.2015.08.018.
C Liu, J Wang, H Yu, B Deng, X Wei, H Li, KA Loparo, C Fietkiewicz (2015). “Dynamical analysis of Parkinsonian state emulated by hybrid Izhikevich neuron models”, Communications in Nonlinear Science and Numerical Simulation, 28:10 – 26, http://dx.doi.org/10.1016/j.cnsns.2015.03.018.
C Liu, J Wang, H Li, M Lu, B Deng, H Yu, X Wei, C Fietkiewicz, KA Loparo (2015). “Closed-loop Modulation of the Pathological Disorders of the Basal Ganglia Network”, IEEE Trans on Neural Networks and Learning Systems, vol.PP, no.99, pp.1, http://dx.doi.org/10.1109/TNNLS.2015.2508599.
C Kerr, S Neymotin, G Chadderdon, C Fietkiewicz, J Francis, WW Lytton (2012) “Electrostimulation as a prosthesis for repair of information flow in a computer model of neocortex”, IEEE Transactions on Neural Systems and Rehabilitation Engineering, 20(2): 153 – 160, http://dx.doi.org/10.1109/TNSRE.2011.2178614.
C Fietkiewicz, KA Loparo, and CG Wilson (2011) “Drive Latencies in Hypoglossal Motoneurons Indicate Developmental Change in the Brainstem Respiratory Network”, Journal of Neural Engineering, 8(6): 065011, http://dx.doi.org/10.1088/1741-2560/8/6/065011.
