Kyeonggu Lee, Minyoung Chun, Bori Jung, Yunsu Kim, Chaeyoun Yang, JongKwan Choi, Jihyun Cha, Seung-Hwan Lee, and Chang-Hwan Im*, "Machine-Learning-Based Prediction of Photobiomodulation Effects on Older Adults with Cognitive Decline Using Functional Near-Infrared Spectroscopy," 

IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 32, pp. 3710-3718, 2024. [Link] (IF = 4.8, Top 3%)

HyunSub Kim, Chunghwan Kim, Chaeyoon Kim, HwyKeun Kwak, and Chang-Hwan Im*, "New user authentication method based on eye-writting patterns identified from electrooculography for virtual reality applications,"

Biomedical Engineering Letters, in press, 2024 (IF = 3.2, Q2)

Jinuk Kwon, Jihun Hwang, Jee Eun Sung, and Chang-Hwan Im*, “Speech Synthesis from Three-Axis Accelerometer Signals Using Conformer-Based Deep Neural Network,”

Computers in Biology and Medicine, vol. 182, Art.No. 109090, 2024. [Link] (IF = 7.0, Top 3%)

* Featured in Media Link

Kyeonggu Lee, Jinuk Kwon, Minyoung Chun, JongKwan Choi, Seung-Hwan Lee, and Chang-Hwan Im*, “Functional near-infrared spectroscopy-based computer-aided diagnosis of major depressive disorder using convolutional neural network with a new channel embedding layer considering inter-hemispheric asymmetry in prefrontal hemodynamic responses,” 

Depression and Anxiety, vol. 2024, Art.No.4459867, 2024.  [Link] (IF = 4.7, Top 10%)

Minsu Kim and Chang-Hwan Im*, “HiRENet: Novel Convolutional Neural Network Architecture Using Hilbert-transformed and Raw Electroencephalogram (EEG) for Subject-Independent Emotion Classification,”

Computers in Biology and Medicine, Art.No. 108788, 2024. [Link] (IF = 7.0, Top 3%)

* Featured in a Media Link 

Hyeon-Ho Hwang, Kang-Min Choi, Chang-Hwan Im, Chaeyeon Yang, Sungkean Kim, and Seung-Hwan Lee, “Comparative Analysis of Resting-State EEG-Based Multiscale Entropy between Schizophrenia and Bipolar Disorder,”

Progress in Neuropsychopharmacology & Biological Psychiatry, Art.No.111048, 2024.[Link] (IF = 5.6, 15%)

Hodam Kim, Ho-Seung Cha, Minseon Kim, Yoon Jae Lee, Hoon Yi, Sung Hoon Lee, Soltis Ira, Hojoong Kim, Chang-Hwan Im*, and Woon-Hong Yeo*, "AR-Enabled Persistent Human-Machine Interfaces via a Scalable Soft Electrode Array," 

Advanced Science, vol. 11, no. 7, Art.No. 2305871, 2024. [Link] (IF = 15.1, 10%)

Suhye Kim, Jung-Hwan Kim, Wooseok Hyung, Suhkyung Shin, Myoung Jin Choi, Dong Hwan Kim, and Chang-Hwan Im*, "Characteristic Behaviors of Elementary Students in a Low Attention State during Online Learning Identified Using Electroencephalography,"

IEEE Transactions on Learning Technologies, vol. 17, pp.619-628, 2024. [Link] (IF = 3.7, Q1)

Sangjun Lee, Se-Na Kim, Chany Lee, Young Bin Choy, and Chang-Hwan Im*, "Multi-Physics Simulations for Investigating the Effect of Electrode Conditions on Transscleral Ocular Iontophoresis for Particulate Drug Delivery into Ocular Tissues,"

Biomedical Engineering Letters, vol. 14, pp. 439-450, 2024. (IF = 4.6, Q2) - Invited Paper

Seonghun Park, Minsu Kim, Hyerin Nam, Jinuk Kwon, and Chang-Hwan Im*, "In-Car Environment Control Using an SSVEP-Based Brain-Computer Interface with Visual Stimuli Presented on Head-Up Display: Performance Comparison with a Button-Press Interface,"

Sensors, vol. 24, Art.No.545, 2024. [Link] (IF = 3.9, Q2) - Invited Paper

Jimin Park, Sangjun Lee, Dasom Choi, and Chang-Hwan Im*, "Enhancement of Dynamic Visual Acuity Using Transcranial Alternating Current Stimulation with Gamma Burst Entrained on Alpha Wave Troughs,"

Behavioral and Brain Functions, vol. 19, Art.No. 13, 2023. [Link] (IF = 5.1, 10%)

* Featured in a media Link

Ho-Seung Cha and Chang-Hwan Im*, "Improvement of Robustness against Electrode Shift for Facial Electromyogram-based Facial Expression Recognition using Domain Adaptation in VR-based Metaverse Applications,"

Virtual Reality, vol. 27, pp. 1685-1696, 2023. [Link] (IF = 4.2, Q1)

Kang-Min Choi, Chang-Hwan Im, Chaeyeon Yang, Hyun Seo Lee, Sungkean Kim, and Seung-Hwan Lee, "Influence of inter-stimulus interval on 40-Hz auditory steady-state response in patients with schizophrenia"

npj Schizophrenia, vol. 9, Art.No. 46, 2023. [Link] (IF = 5.4, Q1)

Jimin Park, Sangjun Lee, Seonghun Park, Chany Lee, Sungshin Kim, and Chang-Hwan Im*, "Transcranial Alternating Current Stimulation over Multiple Brain Areas with Non-Zero Phase Delays Other Than 180 degrees Modulates Visuospatial Working Memory Performance,”

Scientific Reports, vol. 13, Art.No.12710, 2023. [Link] (IF = 4.6, Q2)

Chunghwan Kim, Chaeyoon Kim, HyunSub Kim, HwyKuen Kwak, WooJin Lee, and Chang-Hwan Im*, "Facial Electromyogram-based Facial Gesture Recognition for Hands-free Control of an AR/VR Environment: Optimal Gesture Set Selection and Validation of Feasibility as an Assistive Technology,"

Biomedical Engineering Letters, vol. 13, pp. 465–473, 2023. [Link] (IF = 4.6, Q2)

Yong-Wook Kim, Sungkean Kim, Min Jin Jin, Chang-Hwan Im*, and Seung-Hwan Lee*, "The importance of low-frequency alpha (8-10 Hz) waves and default mode network in behavioral inhibition,"

Clinical Psychopharmacology and Neuroscience, vol. 22, pp. 53-66, 2023. [Link] (IF = 3.731, Q2)

Hodam Kim, Younsoo Chae, Suhye Kim, and Chang-Hwan Im*, "Development of a Computer-Aided Education System Inspired by Face-to-Face Learning by Incorporating EEG-based Neurofeedback into Online Video Lectures,"

IEEE Transactions on Learning Technologies, vol. 16, pp. 78-91, 2023. [Link] (IF = 4.433, 15%)

Seonghun Park, Jisoo Ha, Jimin Park, Kyeong-Gu Lee, and Chang-Hwan Im*, "Brain-Controlled, AR-based Home Automation System Using SSVEP-based Brain-Computer Interface and EOG-based Eye Tracker: A Feasibility Study for the Elderly End User,"

IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 31, pp. 544-553, 2023. [Link] (IF = 4.528, 15%)

Chunghwan Kim, Ho-Seung Cha, Junghwan Kim, HwyKuen Kwak, WooJin Lee, and Chang-Hwan Im*, "Facial Motion Capture System Based on Facial Electromyogram and Electrooculogram for Immersive Social Virtual Reality Applications,"

Sensors, vol. 23, Art.No. 3580, 2023. [Link] (IF = 3.847, Q2)

Kyeonggu Lee, Kang-Min Choi, Seonghun Park, Seung-Hwan Lee, and Chang-Hwan Im*, “Selection of the Optimal Channel Configuration for Implementing Wearable EEG Devices for the Diagnosis of Mild Cognitive Impairment,"

Alzheimer's Research & Therapy, vol. 14, Art.No. 170, 2022. [Link] (IF = 8.831, 10%)

Jisoo Ha, Kang-Min Choi, and Chang-Hwan Im*, "Feasibility of Using Electrooculography-based Eye-trackers for Neuromarketing Applications,"

IEEE Transactions on Instrumentation and Measurement, vol. 71, Art.No. 6503310, 2022. [Link] (IF = 5.332, 15%)

Se-Na Kim, Chang Hee Min, Bo Hee Kim, Sangjun Lee, Han Bi Ji, Cho Rim Kim, Jae Hoon Han, Chang-Hwan Im, Hyeong Gon Yu, and Young Bin Choy, “Iontophoretic Delivery of Dexamethasone-loaded Nanoparticles to the Anterior Segment of the Eye,”

Journal of Industrial and Engineering Chemistry, vol. 116, pp. 199-206, 2022. [Link] (IF = 6.760, Q1)

Jinuk Kwon, Jihun Hwang, Hyerin Nam, and Chang-Hwan Im*, "Novel Hybrid Visual Stimuli Incorporating Periodic Motions into Conventional Flickering or Pattern-Reversal Visual Stimuli for Steady-State Visual Evoked Potential-Based Brain-Computer Interfaces,"

Frontiers in Neuroinformatics, vol. 16, Art.No.997068, 2022. [Link] (IF = 4.081, Q1)

Sangjun Lee, Jimin Park, Da Som Choi, Seokbeen Lim, Youngjong Kwak, Dong Pyo Jang, Dong Hwan Kim, Han Bi Ji, Young Bin Choy, and Chang-Hwan Im*, "Feasibility of Epidural Temporal Interference Stimulation for Minimally Invasive Electrical Deep Brain Stimulation: Simulation and Phantom Experimental Studies,"

Journal of Neural Engineering, vol. 19, Art.No.056003, 2022. [Link] (IF = 5.379, Q1)

Jimin Park, Chany Lee, Sangjun Lee, and Chang-Hwan Im*, "80 Hz but not 40 Hz, Transcranial Alternating Current Stimulation of 80 Hz over Right Intraparietal Sulcus Increases Visuospatial Working Memory Capacity,"

Scientific Reports, vol. 12, Art.No. 13762, 2022. [Link] (IF = 4.379, Q1)

Ho-Seung Cha and Chang-Hwan Im*, "Performance enhancement of facial electromyogram-based facial-expression recognition for social virtual reality applications using linear discriminant analysis adaptation,"

Virtual Reality, vol. 26, pp. 385-398, 2022. [Link] (IF = 5.095, 10%)

* Featured in a Media Link

Miseon Shim, Chang-Hwan Im, Seung-Hwan Lee, and Han-Jeong Hwang, “Enhanced performance by interpretable low-frequency EEG oscillations in the machine learning-based diagnosis of post-traumatic stress disorder,” Frontiers in Neuroinformatics

Frontiers in Neuroinformatics, vol. 16, Art.No. 811756, 2022. [Link] (IF = 4.081, Q1)

Jisoo Ha, Seonghun Park, and Chang-Hwan Im*, "Novel hybrid brain-computer interface (BCI) for virtual reality applications using SSVEP-based BCI and electrooculogram-based eye tracking for increased information transfer rate,"

Frontiers in Neuroinformatics, vol. 16, Art.No. 758537, 2022. [Link] (IF = 4.081, Q1)

Sangjun Lee, Chany Lee, Euijin Kim, Song Ah Ko, Se-Na Kim, Young Bin Choy, and Chang-Hwan Im*, "In-Vivo Estimation of Tissue Electrical Conductivities of a Rabbit Eye for Precise Simulation of Electric Field Distributions during Ocular Iontophoresis,"

International Journal for Numerical Methods in Biomedical Engineering, vol. 38, no. 1, Art.No. e3540, 2022. [Link] (IF = 2.747, Q2)

Hodam Kim, Laehyun Kim, Dan Zhang, and Chang-Hwan Im*, “Classification of Individual’s Discrete Emotions Reflected in Facial Microexpressions Using Electroencephalogram and Facial Electromyogram,”

Expert Systems With Applications, vol. 188, Art.No. 116101, 2022. [Link] (IF = 6.954, 10%)

* Featured in a Media Link

Kang-Min Choi, Jeong-Youn Kim, Yong-Wook Kim, Jung-Won Han, Chang-Hwan Im*, and Seung-Hwan Lee*, “Comparative analysis of default mode networks in major psychiatric disorders using resting-state EEG,”

Scientific Reports, vol. 11, Art.No. 22007, 2021. (* co-corresponding authors) [Link] (IF = 4.379, Q1)

Hodam Kim and Chang-Hwan Im*, "Influence of the number of channels and classification algorithm on the performance robustness to electrode shift in steady-state visual evoked potential-based brain-computer interfaces,"

Frontiers in Neuroinformatics, vol. 15, Art.No. 750839, 2021. [Link] (IF = 4.081, Q1)

Jihyeon Ha, Wanjoo Park, Sang In Park, Chang-Hwan Im, and Laehyun Kim, "EEG response to game-craving according to personal preference for games,"

Social Cognitive and Affective Neuroscience, vol. 16, no. 9, pp. 995-1005. [Link] (IF = 3.436, Q2)

Jihyeon Ha, Sangin Park, Chang-Hwan Im, Laehyun Kim, "Classification of Gamers Using Multiple Physiological Signals: Distinguishing features of Internet Gaming Disorder,"

Frontiers in Psychology, vol. 12, Art.No. 714333, 2021. [Link] (IF = 2.990, Q2)

Jihyeon Ha, Sang In Park, Chang-Hwan Im, and Laehyun Kim, "A Hybrid Brain–Computer Interface for Real-life Meal-Assist Robot Control,"

Sensors, vol. 21, no. 13, Art.No. 4578, 2021. [Link] (IF = 3.576, Q1)

Sangjun Lee, Jimin Park, Jinuk Kwon, Dong Hwan Kim, and Chang-Hwan Im*, "Multi-Channel Transorbital Electrical Stimulation for Effective Stimulation of Posterior Retina,"

Scientific Reports, vol. 11, Art.No. 9745, 2021. [Link] (IF = 4.379, Q1)

Jinuk Kwon and Chang-Hwan Im*, "Subject-Independent Functional Near-Infrared Spectroscopy-Based Brain-Computer Interfaces Based on Convolutional Neural Networks,"

Frontiers in Human Neuroscience, vol. 15, Art.No. 646915, 2021. [Link] (IF = 3.169, Q2)

Seonghun Park, Chang-Hee Han, and Chang-Hwan Im*, "Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications,"

Sensors, vol. 20, Art.No. 4572, 2020. [pdf 3.8M] (IF = 3.275, Q1)

Sangjun Lee, Chany Lee, Jimin Park, and Chang-Hwan Im*, "Individually customized transcranial temporal interference stimulation for focused modulation of deep brain structures: A simulation study with different head models,"

Scientific Reports, vol. 10, Art.No. 11730, 2020. [pdf 2.4M] (IF = 3.998, Q1)

Sungkean Kim, Yong-Wook Kim, Miseon Shim, Min Jin Jin, Chang-Hwan Im, and Seung-Hwan Lee, "Altered Cortical Functional Networks in Patients with Schizophrenia and Bipolar Disorder: A Resting-State Electroencephalographic Study,"

Frontiers in Psychiatry, vol. 11, Art.No. 661, 2020. [pdf 1M] (IF = 2.849, Q2)

Sungkean Kim, Yong-Wook Kim, Hyeonjin Jeon, Chang-Hwan Im, and Seung-Hwan Lee, "Altered Cortical Thickness-Based Individualized Structural Covariance Networks in Patients with Schizophrenia and Bipolar Disorder,"

Journal of Clinical Medicine, vol. 9, Art.No. 1846, 2020. [pdf 1.1M] (IF = 3.303, Q1)

Jinuk Kwon, Jaeyoung Shin, and Chang-Hwan Im*, "Toward a compact hybrid brain-computer interface (BCI): Performance evaluation of multi-class hybrid EEG-fNIRS BCIs with limited number of channels,"

PLoS ONE, vol. 15, no. 3, e0230491, 2020. [pdf 1.2M] (IF = 2.740, Q2)

Yong-Wook Kim, Sungkean Kim, Miseon Shim, Min Jin Jin, Hyeonjin Jeon, Seung-Hwan Lee, and Chang-Hwan Im*, "Riemannian classifier enhances the accuracy of machine-learning-based diagnosis of PTSD using resting EEG,"

Progress in Neuro-Psychopharmacology & Biological Psychiatry, vol. 102, Art.No. 109960, 2020. [pdf 588k] (IF = 4.361, Q1)

Ho-Seung Cha, Chang-Hee Han, and Chang-Hwan Im*, "Prediction of Individual User’s Dynamic Ranges of EEG Features from Resting-State EEG Data for Evaluating Their Suitability for Passive Brain–Computer Interface Applications,"

Sensors, vol. 20, Art.No. 988, 2020. [pdf 2.4M] (IF = 3.275, Q1)

Woo-Kyoung Yoo, Marine Vernet, Jeong Hoon Kim, Anna-Katharine Brem, Shahid Bashir, Fritz Ifert-Miller, Chang-Hwan Im, Mark Eldaief, and Alvaro Pascual-Leone, "Interhemispheric and Intrahemispheric Connectivity From the Left Pars Opercularis Within the Language Network Is Modulated by Transcranial Stimulation in Healthy Subjects,"

Frontiers in Human Neuroscience, vol. 14, Art.No. 63, 2020. [Link] (IF = 2.673, Q2)

Chang-Hee Han, Euijin Kim, and Chang-Hwan Im*, "Development of a Brain–Computer Interface Toggle Switch with Low False-Positive Rate Using Respiration-Modulated Photoplethysmography,"

Sensors, vol. 20, Art.No. 348, 2020. [pdf 3.1M] (IF = 3.275, Q1)

Do-Won kim, Euijin Kim, Chany Lee, and Chang-Hwan Im*, "Can anodal transcranial direct current stimulation increase steady-state visual evoked potential responses?"

Journal of Korean Medical Science, vol. 34, no. 43, Art.No. e285, 2019. [Link] (IF = 1.716, Q2)

Elisabeth Parés Pujolràs, Yong-Wook Kim, Chang-Hwan Im, and Patrick Haggard, "Latent awareness: early conscious access to motor preparation processes is linked to the readiness potential,"

NeuroImage, vol. 202, Art.No. 116140, 2019. [Link] (IF = 5.812, 5%)

Jimin Park, Chany Lee, Sangjun Lee, and Chang-Hwan Im*, "Comparison of Magnetic Field Distributions Generated by Various Permanent Magnets for Transcranial Static Magnetic Stimulation: A Simulation Study"

Computers in Biology and Medicine, vol. 114, Art.No. 103476, 2019. [pdf 1,227k] (IF = 3.434, 15%)

Sungkean Kim, Hyeonjin Jeon, Kuk-In Jang, Yong-Wook Kim, Chang-Hwan Im, and Seung-Hwan Lee, "Mismatch Negativity and Cortical Thickness in Patients with Schizophrenia and Bipolar Disorder,"

Schizophrenia Bulletin, vol. 45, no. 2, pp. 425-435, 2019. [Link] (IF = 7.289, 10%)

Chany Lee and Chang-Hwan Im*, "New Strategy for Finite Element Mesh Generation for Accurate Solutions of Electroencephalography Forward Problems,"

Brain Topography, vol. 32, pp. 354-362, 2019. [pdf 2,250k] (IF = 3.104, Q2)

Xin Hu, Chu Zhuang, Fei Wang, Yong-Jin Liu, Chang-Hwan Im, and Dan Zhang, "fNIRS Evidence for Recognizably Different Positive Emotions,"

Frontiers in Human Neuroscience, vol. 13, Art.No. 120, 2019. [Link] (IF = 2.870, Q2)

Kang-min Choi, Seonghun Park, and Chang-Hwan Im*, "Comparison of Visual Stimuli for Steady-State Visual Evoked Potential-Based Brain-Computer Interfaces in Virtual Reality Environment in terms of Classification Accuracy and Visual Comfort,"

Computational Intelligence and Neuroscience, vol. 2019, Art.ID.9680697, 2019. [Link] (IF = 2.284, Q2)

Chang-Hee Han, Yong-Wook Kim, Do Yeon Kim, Seung Hyun Kim, Zoran Nenadic, and Chang-Hwan Im*, "Electroencephalography-based endogenous brain-computer interface for online communication with a completely locked-in patient,"

Journal of NeuroEngineering and Rehabilitation, vol. 16, Art.No. 18, 2019. [Link] (IF = 3.582, 10%)

Sungkean Kim, Seon-Kyeong Jang, Do-Won Kim, Miseon Shim, Yong-Wook Kim, Chang-Hwan Im, and Seung-Hwan Lee, "Cortical Volume and 40-Hz Auditory-Steady-State Responses in Patients with Schizophrenia and Healthy Controls,"

NeuroImage: Clinical, vol. 22, Art.No. 101732, 2019. [Link] (IF = 3.943, Q1)

Do Yeon Kim, Chang-Hee Han, and Chang-Hwan Im*, "Development of an electrooculogram-based human-computer interface using involuntary eye movement by spatially rotating sound for communication of locked-in patients,"

Scientific Reports, vol. 8, Art.No. 9505, 2018. [pdf 1,655k] (IF = 4.122, Q1)

Do Yeon Kim, Jinuk Kwon, Joo-Young Kim, Ho-Seung Cha, Yong-Wook Kim, In Young Kim, and Chang-Hwan Im*, "New Method for Pure-Tone Audiometry Using Electrooculogram: A Proof-of-Concept Study,"

Sensors, vol. 18, Art.No.3651, 2018. [pdf 1,931k] (IF = 2.475, Q1)

Sungkean Kim, Ji Sun Kim, Miseon Shim, Chang-Hwan Im, and Seung-Hwan Lee, "Altered cortical functional network during behavioral inhibition in individuals with childhood trauma,"

Scientific Reports, vol. 8, Art.No. 10123, 2018. [pdf 1.4M] (IF = 4.122, Q1)

Miseon Shim, Chang-Hwan Im, Yong-Wook Kim, and Seung-Hwan Lee, "Altered cortical functional network in major depressive disorder: a resting-state electroencephalogram study,"

NeuroImage: Clinical, vol. 19, pp. 1000-1007, 2018. [pdf 1.4M] (IF = 3.869, Q1)

Jaeyoung Shin, Jinuk Kwon, Jongkwan Choi, and Chang-Hwan Im*, "Ternary Near-Infrared Spectroscopy Brain-Computer Interface with Increased Information Transfer Rate Using Prefrontal Hemodynamic Changes During Mental Arithmetic, Breath-Holding, and Idle State,"

IEEE Access, vol. 6, pp. 19491-19498, 2018. [pdf 8.6M] (IF = 3.557, Q1)

Jaeyoung Shin, Jinuk Kwon, and Chang-Hwan Im*, "A Ternary Hybrid EEG-NIRS Brain-Computer Interface for the Classification of Brain Activation Patterns during Mental Arithmetic, Motor Imagery, and Idle State,"

Frontiers in Neuroinformatics, vol. 12, Art.No. 5, 2018. [Link] (IF = 3.074, Q1)

Sungkean Kim, Ji Sun Kim, Min Jin Jin, Chang-Hwan Im*, and Seung-Hwan Lee*, "Dysfunctional frontal lobe activity during inhibitory tasks in individuals with childhood trauma: An event-related potential study,"

NeuroImage: Clinical, vol. 17, pp. 935-942, 2018. [Link] (*co-corresponding authors) (IF = 3.869, Q1)

Hodam Kim, Jihyeon Ha, Won-Du Chang, Wanjoo Park, Laehyun Kim, and Chang-Hwan Im*, "Detection of Craving for Gaming in Adolescents with Internet Gaming Disorder Using Multimodal Biosignals,"

Sensors, vol. 18, Art.No. 102, 2018. [Link] (IF = 2.475, Q1)

Soo-In Choi, Chang-Hee Han, Ga-Young Choi, Jaeyoung Shin, Kwang Soup Song, Chang-Hwan Im, and Han-Jeong Hwang, "Feasibility of Using Ear-EEG to Develop an Endogenous Brain-Computer Interface,"

Sensors, vol. 18, Art. No. 2856, 2018. [Link] (IF = 2.475, Q1)

Seung Suk Kang, Angus W. MacDonald III, Matthew V. Chafee, Chang-Hwan Im, Edward M. Bernet, Nicholas D. Davenport, and Scot R. Sponheim, "Abnormal cortical neural synchrony during working memory in schizophrenia,"

Clinical Neurophysiology, vol. 129, no. 1, pp. 210-221, 2018. [Link] (IF = 3.614, Q1)

Jaeyoung Shin, Jinuk Kwon, Jongkwan Choi, and Chang-Hwan Im*, "Performance Enhancement of a Brain-Computer Interface Using High-Density Multi-Distance NIRS,"

Scientific Reports, vol. 7, Art. No. 16545, 2017. [pdf 3,035k] (IF = 4.259, Q1)

Chang-Hee Han, Jun-Hak Lee, Jeong-Hwan Lim, Yong-Wook Kim, and Chang-Hwan Im*, "Global electroencephalography synchronization as a new indicator for tracking emotional changes of a group of individuals during video watching,"

Frontiers in Human Neuroscience, vol. 11, Art.No. 577, 2017. [Link] (IF = 3.209, Q1)

Miseon Shim, Chang-Hwan Im*, and Seung-Hwan Lee*, "Disrupted cortical brain network in post-traumatic stress disorder patients: a resting-state electroencephalographic study,"

Translational Psychiatry, vol. 7, Art.No. e1231, 2017. [Link] (*co-corresponding authors) (IF = 4.730, Q1)

Won-Du Chang, Ho-Seung Cha, Do Yeon Kim, Seung Hyun Kim, and Chang-Hwan Im*, "Development of an electrooculogram-based eye-computer interface for communication of individuals with amyotrophic lateral sclerosis,"

Journal of Neuroengineering and Rehabilitation, vol. 14, Art.No. 89, 2017. [Link] (IF = 3.516, 5%)

Do-Won Kim, Seung-Hwan Lee, Miseon Shim, and Chang-Hwan Im*, "Estimation of symptom severity scores for patients with schizophrenia using ERP source activations during a facial affect discrimination task,"

Frontiers in Neuroscience, 2017, vol. 11, Art. No. 436, 2017. [Link] (IF = 3.566, Q2)

Han-Jeong Hwang, Chang-Hee Han, Jeong-Hwan Lim, Yong-Wook Kim, Soo-In Choi, Kwang-Ok An, Jun-Hak Lee, Ho-Seung Cha, Seung Hyun Kim, and Chang-Hwan Im* "Clinical Feasibility of Brain-Computer Interface Based on Steady-State Visual Evoked Potential in Patients with Locked-in Syndrome: Case Studies,"

Psychophysiology, vol. 54, pp. 444-451, 2017. [pdf 529k] (IF = 3.118, 15%

Chany Lee, Chang-Hwan Im, Yong Seo Koo, Jung-Ah Lim, Tae-Joon Kim, Jung-Ick Byun, Jun-Sang Sunwoo, Jangsup Moon, Dong Wook Kim, Soon-Tae Lee, Keun-Hwa Jung, Kon Chu, Sang-Kun Lee, and Ki-Young Jung, "Altered network characteristics of spike-wave discharges in juvenile myoclonic epilepsy,"

Clinical EEG and Neuroscience, vol. 48, no. 2, pp. 111-117, 2017. [pdf 970k] (IF = 2.163, Q2)

Kwang-Ryeol Lee, Won-Du Chang, Sungkean Kim, and Chang-Hwan Im*, "Real-time "Eye-Writing" Recognition Using Electrooculogram,"

IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 25, no. 1, pp. 37-48, 2017. [pdf 1,776k] (IF = 3.410, 5%)

* Featured in a Media (Dong-A Ilbo) Link

Ji Sun Kim, Sungkean Kim, Wookyoung Jung, Chang-Hwan Im, and Seung-Hwan Lee, "Auditory evoked potential could reflect emotional sensitivity and impulsivity,"

Scientific Reports, vol. 6, Art.No. 37683, 2016. [pdf 1,089k]

Young-Ho Park, Jeong-Youn Kim, SangHak Yi, Jae-Sung Lim, Jae-Won Jang, Chang-Hwan Im*, and SangYun Kim* "Transient Global Amnesia Deteriorates the Network Efficiency of the Theta Band,"

PLoS ONE, vol. 11, no. 10, Art.No. e0164884, 2016. [pdf 1,746k] (*co-corresponding authors)

Miseon Shim, Han-Jeong Hwang, Do-Won Kim, Seung-Hwan Lee, and Chang-Hwan Im*, "Machine-learning-based diagnosis of schizophrenia using combined sensor-level and source-level EEG features,"

Schizophrenia Research, vol. 176, pp. 314-319, 2016. [pdf 1,429k]

Jeong-Youn Kim, Kun-Il Kim, Chang-Hee Han, Jeong-Hwan Lim, and Chang-Hwan Im* "Estimating Consumer’s Subjective Preference Using Functional Near-infrared Spectroscopy: A Feasibility Study,"

Journal of Near Infrared Spectroscopy, vol. 24, pp. 433-441, 2016. [Link]

Hodam Kim, Jeong-Youn Kim, and Chang-Hwan Im* "Fast and Robust Real-time Estimation of Respiratory Rate from Photoplethysmography ,"

Sensors, vol. 16, Art.No. 1494, 2016. [Link]

Han-Jeong Hwang, Han Choi, Jeong-Youn Kim, Won-Du Chang, Do-Won Kim, Kiwoong Kim, Sungho Jo, and Chang-Hwan Im*, "Toward More Intuitive Brain-Computer Interfacing: Classification of Binary Covert Intentions Using Functional Near-Infrared Spectroscopy,"

Journal of Biomedical Optics, vol. 21, no. 9, Art.No. 091303, 2016. [pdf 4086k]

Seung-Hwan Lee, Sangrae Kim, Mi-Seon Shim, Do-Won Kim, and Chang-Hwan Im*, "Dysfunctional Patterns of Gamma-band Activity in Response to Human Faces compared to Non-facial Stimuli in Patients with Schizophrenia,"

Psychiatry Investigation, vol. 13, pp. 349-359, 2016. [pdf 3117k]

Won-Du Chang, Ho-Seung Cha, and Chang-Hwan Im*, "Removing Interdependency between Horizontal and Vertical Eye-Movement Components in Electrooculograms"

Sensors, vol. 16, no. 2, Art.No. 227, 2016. [Link]

Chang-Hee Han, Jeong-Hwan Lim, Jun-Hak Lee, Kangsan kim, and Chang-Hwan Im* "Data-driven user feedback: An improved neurofeedback strategy considering the inter-individual variability of EEG features ,"

BioMed Research International, vol. 2016, Art.ID.3939815, 2016. [Link]

Miseon Shim, Do-Won Kim, Sunkyung Yoon, Gewnhi Park, Chang-Hwan Im, and Seung-Hwan Lee, "Influence of spatial frequency and emotion expression on face processing in patients with panic disorder,"

Journal of Affective Disorders, vol. 197, pp. 159-166, 2016. [Link]

Won-Du Chang, Jeong-Hwan Lim, and Chang-Hwan Im*, "An unsup​ervised eye blink artifact detection method for real-time electroencephalogram processing"

Physiological Measurement, vol. 37, pp. 401-417, 2016. [pdf 307k]

Won-Du Chang, Ho-Seung Cha, Kiwoong Kim, and Chang-Hwan Im*, "Detection of Eye Blink Artifacts from Single Prefrontal Channel Electroencephalogram,"

Computer Methods and Programs in Biomedicine, vol. 124, pp. 19-30, 2016. [pdf 3206

Young Seok Shin, Won-Du Chang, Jinsick Park, Chang-Hwan Im, Sang In Lee, In Young Kim, Dong Pyo Jang, "Correlation between Inter Blink Interval and Episodic Encoding during Movie Watching,"

PLoS ONE, vol. 10, no. 11, Art.ID. e0141242, 2015. [Link]

Suk Yun Kang*, Chang-Hwan Im*, Fatta B. Nahab, Mi-Seon Shim, Jihye Park, Do-Won Kim, John Kakareka, Nathanial Miletta, and Mark Hallett, "Brain Networks Responsible for Sense of Agency: An EEG Study,"

PLoS ONE, vol. 10, no. 8, Art.ID. e0135261, 2015. (*co-first authors) [Link]

Jeong-Hwan Lim, Jun-Hak Lee, Han-Jeong Hwang, Dong Hwan Kim, and Chang-Hwan Im*, "Development of a hybrid mental spelling system combining SSVEP-based brain-computer interface and webcam-based eyetracking,"

Biomedical Signal Processing & Control, vol. 21, pp. 99-104, 2015. [pdf 959k]

Do-Won Kim, Miseon Kim, Myeong Ju Song, Chang-Hwan Im, and Seung-Hwan Lee, "Early visual processing deficits in patients with schizophrenia during spatial frequency-dependent facial affect processing,"

Schizophrenia Research, vol. 161, pp. 314-321, 2015. [pdf 995k]

Jeong-Youn Kim, Hoon-Chul Kang, Kiwoong Kim, Heung Dong Kim, and Chang-Hwan Im*, "Localization of epileptogenic zones in Lennox-Gastaut syndrome (LGS) using graph theoretical analysis of ictal intracranial EEG: a preliminary investigation,"

Brain & Development, vol. 37, pp. 29-36, 2015. [pdf 1,415k]

Minji Lee, Yun-Hee Kim, Chang-Hwan Im, Jung-Hoon Kim, Chang-hyun Park, Won Hyuk Chang, and Ahee Lee, "What is the optimal anodal electrode position for inducing corticomotor excitability changes in transcranial direct current stimulation?,"

Neuroscience Letters, vol. 584, pp. 347-350, 2015. [pdf 554k]

Miseon Shim, Do-Won Kim, Seung-Hwan Lee, and Chang-Hwan Im*, "Disruptions in small-world cortical functional connectivity network during an auditory oddball paradigm task in patients with schizophrenia,"

Schizophrenia Research, vol. 156, pp. 197-203, 2014. [pdf 773k]

Chang-Hee Han, Hyuna Song, Yong-Guk Kang, Beop-Min Kim, and Chang-Hwan Im*, "Hemodynamic responses in rat brain during transcranial direct current stimulation: a functional near-infrared spectroscopy study,"

Biomedical Optics Express, vol. 5, no. 6, pp. 1812-1821, 2014. [pdf 1344k]

Jeong-Youn Kim, Hoon-Chul Kang, Jae-Hyun Cho, Ji Hyun Lee, Heung Dong Kim, and Chang-Hwan Im*, "Combined use of multiple computational intracranial EEG(iEEG) analysis techniques for the localization of epileptogenic zones in Lennox-Gastaut Syndrome (LGS),"

Clinical EEG and Neuroscience, vol. 45, no. 3, pp. 169-178, 2014. [Link]

Won-Du Chang and Chang-Hwan Im*, "Enhanced Template Matching Using Dynamical Positional Warping for Identification of Specific Patterns in Electroencephalogram,"

Journal of Applied Mathematics, vol. 2014, art. ID. 528071, 2014. [pdf 2676k]

Jung-Hoon Kim, Do-Won Kim, Won Hyuk Chang, Yun-Hee Kim, Kiwoong Kim, and Chang-Hwan Im*, "Inconsistent outcomes of transcranial direct current stimulation may originate from anatomical differences among individuals: Electric field simulation using individual MRI data,"

Neuroscience Letters, vol. 564, pp. 6-10, 2014. [Link]

Do-Won Kim, Miseon Shim, Jeong-In Kim, Chang-Hwan Im, and Seung-Hwan Lee, "Source activation of P300 correlates with negative symptom severity in patients with schizophrenia,"

Brain Topography, vol. 27, no. 2, pp. 307-317, 2014. [pdf 2704k]

Han-Jeong Hwang, Dong Hwan Kim, Chang-Hee Han, and Chang-Hwan Im*, "A new dual-frequency stimulation method to increase the number of visual stimuli for multi-class SSVEP-based brain-computer interface (BCI),"

Brain Research, vol. 1515, pp. 66-77, 2013. [pdf 4255k]

Chang-Hee Han, Han-Jeong Hwang, and Chang-Hwan Im*, "Classification of visual stimuli with different spatial patterns for single-frequency, multi-class SSVEP BCI,"

Electronics Letters, vol. 49, no. 22, pp. 1374-1376, 2013. [Link]

Han-Jeong Hwang, Soyoun Kim, Soobeom Choi, and Chang-Hwan Im*, "EEG-based Brain-Computer Interfaces (BCIs): A Thorough Literature Survey,"

International Journal of Human-Computer Interaction, vol. 29, pp. 814-826, 2013. [Link]

Jong-Ho Choi, Young-Jin Jung, Hyun-Kyo Jung, and Chang-Hwan Im*, "A New Multimodal Cortical Source Imaging Algorithm for Integrating Simultaneously Recorded EEG and MEG,"

Inverse Problems in Science and Engineering, vol. 21, no. 6, pp. 1074-1089, 2013. [Link]

Sun-Ae Park, Han-Jeong Hwang, Jeong-Hwan Lim, Jong-Ho Choi, Hyun-Kyo Jung, and Chang-Hwan Im*, "Evaluation of feature extraction methods for EEG-based brain-computer interfaces in terms of robustness to slight changes in electrode locations,"

Medical & Biological Engineering & Computing, vol. 51, pp. 571-579, 2013. [pdf 825k]

Jeong-Hwan Lim, Han-Jeong Hwang, Chang-Hee Han, Ki-Young Jung, and Chang-Hwan Im*, "Classification of binary intentions for individuals with impaired oculomotor function: "Eyes-closed" SSVEP-based brain-computer interface (BCI),"

Journal of Neural Engineering, vol. 10, no. 2, Art.no. 026021, 2013. [Link]

* Corrigendum of the article was published in Journal of Neural Engineering, vol. 10, no. 3, Art. no. 039501, 2013. [Link]

Pyoung Won Kim, Seo Young Kim, Miseon Shim, Chang-Hwan Im, and Young-Min Shon, "The influence of an educational course on language expression and treatment of gaming addiction for massive multiplayer online role-playing game (MMORPG) players,"

Computers & Education, vol. 63, pp. 208-217, 2013. [pdf 1625k]

Yong-Seo Koo, Deokwon Ko, Gwan-Taek Lee, Kyungmi Oh, Myung-Sun Kim, Kyung Hwan Kim, Chang-Hwan Im, and Ki-Young Jung, "Reduced Frontal P3a Amplitude in Migraine Patients as during the Pain-Free Period,"

Journal of Clinical Neurology, vol. 9, pp. 43-50, 2013. [Link]

* Erratum of the article was published in Journal of Clinical Neurology, vol. 9, pp. 200-201, 2013. [Link]

Chang-Hwan Im*, Lei Ding, Yiwen Yang, and Sung-Phil Kim, "Computational Methods in Neuroengineering,"

Computational and Mathematical Methods in Medicine, vol. 2013, art.ID. 617347, 2013 (Editorial of Special Issue) [Link]

Myung-Sun Kim, Kyoung Mi Jang, Huije Che, Do-Won Kim, and Chang-Hwan Im*, "Electrophysiological correlates of object-repetition effects: sLORETA imaging with 64-channel EEG and individual MRI,"

BMC Neuroscience, vol. 13, art.no. 124, 2012. [pdf 2116k]

Dong-Hyun Baek, Chang-Hee Han, Ha-Chul Jung, Seon Min Kim, Chang-Hwan Im, Hyun-Jik Oh, James Jungho Pak, and Sang-Hoon Lee, "Soldering-based easy packaging of thin polyimide multichannel electrodes for neuro signal recording,"

Journal of Micromechanics and Microengineering, vol. 22, art.no. 115017, 2012. [pdf 1993k]

Ji-Sun Kim, Seung-Hwan Lee, Gewnhi Park, Sangrae Kim, Sung-Man Bae, Do-Won Kim, and Chang-Hwan Im, "Clinical implications of quantitative electroencephalography and current source density in patients with Alzheimer's disease,"

Brain Topography, vol. 25, pp. 461-474, 2012. [pdf 350k]

Nam G. Lee, Sung K. Kang, Dong R. Lee, Han J. Hwang, Ji H. Jung, Joshua H. You, Chang Hwan Im, Dong A. Kim, Jung A. Lee, and Ki S. Kim, "Feasibility and Test-retest Reliability of an Electroencephalography-based Brain Mapping System in Children with Cerebral Palsy: A Preliminary Investigation,"

Archives of Physical Medicince and Rehabilitation, vol. 93, no. 5, pp. 882-888, 2012. [link]

Ki-Young Jung*, Jae-Hyun Cho, Deokwon Ko, Hung Youl Seok, Ho-Kyoung Yoon, Heon-Jeong Lee, Leen Kim, and Chang-Hwan Im*, "Increased corticomuscular coherence in idiopathic REM sleep behavior disorder,"

Frontiers in Neurology, vol. 3, Art. No. 60, 2012. [pdf 360k]

Chang-Hwan Im*, Ji-Hye Park, Miseon Shim, Won Hyuk Chang, and Yun-Hee Kim, "Evaluation of local electric fields generated by transcranial direct current stimulation (tDCS) with an extracephalic reference electrode based on realistic 3D body modeling,"

Physics in Medicine and Biology, vol. 57, pp. 2137-2150, 2012. [pdf 1313k]

Seungduk Lee, Dalkwon Koh, Areum Jo, Hae Young Lim, Young-Jin Jung, Choong-Ki Kim, Youngwook Seo, Chang-Hwan Im, Beop-Min Kim, and Minah Suh, "Depth-dependent cerebral hemodynamic responses following Direct Cortical Electrical Stimulation (DCES) revealed by in vivo dual-optical imaging techniques,"

Optics Express, vol. 20, no. 7, pp. 6932-6943, 2012. [pdf 3453k]

Hyung-Tae Jung, Do-Won Kim, Sangrae Kim, Chang-Hwan Im, and Seung-Hwan Lee, "Reduced Source Activity of Event-Related Potentials for Affective Facial Pictures in Schizophrenia Patients,"

Schizophrenia Research, vol. 136, pp. 150-159, 2012. [pdf 1139k]

Jae-Hyun Cho, Hoon-Chul Kang, Young-Jin Jung, Yong-Ho Lee, Ki-Young Jung, Heung Dong Kim, and Chang-Hwan Im*, "Localization of ictal onset zones in Lennox-Gastaut syndrome (LGS) based on information theoretical time delay analysis of intracranial electroencephalography (iEEG),"

Epilepsy Research, vol. 99, pp. 78-86, 2012. [pdf 890k]

Chang-Hwan Im*, Kiwoon Kwon, Venky Krishnan, and Pedro Serranho, "Applied Mathematics in Biomedical Sciences and Engineering,"

Journal of Applied Mathematics, vol. 2012, Art. ID. 187252 (3 pages), 2012. (Editorial of Special Issue)

Kyung-Yeol Bae, Do-Won Kim, Chang-Hwan Im, and Seung-Hwan Lee, "Source Imaging of P300 Auditory Evoked Potentials and Clinical Correlations in Patients with Posttraumatic Stress Disorder,"

Progress in Neuro-Psychopharmacology and Biological Psychiatry, vol. 35, no. 8, pp. 1908-1917, 2011. [pdf 970k]

Han-Jeong Hwang, Kyung-Hwan Kim, Young-Jin Jung, Do-Won Kim, Yong-Ho Lee, and Chang-Hwan Im*, "An EEG-Based Real-time Cortical Functional Connectivity Imaging System,"

Medical & Biological Engineering & Compting, vol. 49, pp. 985-995, 2011. [pdf 718k] supplementary movie file

Jae-Hyun Cho, Seung Bong Hong, Yung-Jin Jung, Hoon-Chul Kang, Heung Dong Kim, Minah Suh, Ki-Young Jung, and Chang-Hwan Im*, "Evaluation of algorithms for intracranial EEG (iEEG) source imaging of extended sources: feasibility of using iEEG source imaging for localizing epileptogenic zones in secondary generalized epilepsy,"

Brain Topography, vol. 24, pp. 91-104, 2011.[pdf 1376k], supplementary figures

Ji-Hye Park, Seung Bong Hong, Do-Won Kim, Minah Suh, and Chang-Hwan Im*, "A Novel Array-type Transcranial Direct Current Stimulation (tDCS) System for Accurate Focusing on Targeted Brain Areas,"

IEEE Transactions on Magnetics, vol. 47, no. 5, pp. 882-885, 2011. [pdf 507k]

Ki-Young Jung, Yong-Seo Koo, Byung-Jo Kim, Deokwon Ko, Gwan-Taek Lee, Kyung Hwan Kim, and Chang-Hwan Im, "Electrophysiological disturbances during daytime in patients with restless legs syndrome: Further evidences of cognitive dysfunction?"

Sleep Medicine, vol. 12, pp. 416-421, 2011. [pdf 756k]

Seung Ho Choi, Sung June Kim, Chang-Hwan Im, Shin Ae Kim, and Daejoong Kim, "Quantitative model for the change of optical resonance in neural activity detection systems based on surface plasmon resonance,"

Optics and Laser Technology, vol. 43, no. 5, pp. 938-948, 2011. [pdf 976k]

Young-Min Park, Do-Won Kim, Sangrae Kim, Chang-Hwan Im, and Seung-Hwan Lee, "The loudness dependence of the auditory evoked potential (LDAEP) as a predictor of the response to escitalopram in patients with generalized anxiety disorder,"

Psychopharmacology, vol. 213, pp. 625-632, 2011. [pdf 407k]

Jun Sic Kim, Chang Hwan Im, Young Jin Jung, Eun Young Kim, Sang Kun Lee, and Chun Kee Chung, "Localization and propagation analysis for ictal source rhythm by elctrocorticography,"

NeuroImage, vol. 52, pp. 1279-1288, 2010. [pdf 2970k]

Chang-Hwan Im, Young-Jin Jung, Seungduk Lee, Dalkwon Koh, Do-Won Kim, and Beop-Min Kim, "Estimation of Directional Coupling between Cortical Areas Using Near Infrared Spectroscopy (NIRS),"

Optics Express, vol. 18, no. 6, pp. 5730-5739, 2010. [pdf 1958k]

Seung-Hwan Lee, Young-Min Park, Do-Won Kim, and Chang-Hwan Im*, "Global Synchronization Index as a Biological Correlate of Cognitive Decline in Alzheimer's Disease,"

Neuroscience Research, vol. 66, pp. 333-339, 2010. [pdf 236k]

Ki-Young Jung, Joong-Koo Kang, Ji Hyun Kim, Chang-Hwan Im, Kyung Hwan Kim, Hyun-Kyo Jung, "Spatiotemporal characteristics of scalp ictal EEG in mesial temporal lobe epilepsy with hippocampal sclerosis,"

Brain Research, vol. 1287, pp. 206-219, 2009. [pdf 11468k]

Jongil Ju, Jung-Moon Ko, Hyeon-Cheol Cha, Joong Yull Park, Chang-Hwan Im, and Sang-Hoon Lee, "An electrofusion chip with a cell delivery system driven by surface tension,"

Journal of Micromechanics and Microengineering, vol. 19, pp. 015004(10pp), 2009. [pdf 2035k]

Chang-Hwan Im* and Hyun-Kyo Jung, "Numerical computation of inductance of complex coil systems,"

International Journal of Applied Electromagnetics and Mechanics, vol. 29, no. 1, pp. 15-24, 2009.

Young-Min Park, Hee-Jae Chae, Chang-Hwan Im, Hyung-Tae Jung, Sung-Man Bae, Seung-Hwan Lee, "Decreased EEG Synchronization and Its Correlation with Symptom Severity in Alzheimer’s disease,"

Neuroscience Research, vol. 62, pp. 112-117, 2008. [pdf 146k]

Jong Seok Rho, Chang Hwan Lee, Tae-Kyung Chung, Chang-Hwan Im, and Hyun Kyo Jung, "Analysis of a Nano Positioning Actuator Using Numerical and Analytic Methods,"

Smart Materials and Structures, vol. 17, pp. 025025(9pp), 2008. [pdf 1447k]

Kwang-Ok An, Chang-Hwan Im, and Hyun-Kyo Jung, "Magnetoencehpalography Source Localization Using Improved Simplex Method,"

Inverse Problems in Science and Engineering, vol. 16, no. 4, pp. 499-510, 2008.

Chany Lee, Do Wan Kim, Sang-Hun Park, Hong-Kyu Kim, Chang-Hwan Im, and Hyun-Kyo Jung, "Point Collocation Meshfree Method Using FMLSRKM for Solving Axisymmetric Laplace Equation,"

IEEE Transactions on Magnetics, vol. 44, no. 6, pp. 1234-1237, 2008.

Chang-Hwan Im*, Chany Lee, Hyun-Kyo Jung, and Soo Yeol Lee, "A New Neuronal Electrical Source Model Considering Electrophysiology to Simulate Realistic Electroencephalography (EEG) Forward Signals,"

IEEE Transactions on Magnetics, vol. 44, no. 6, pp. 1434-1437, 2008.

Chang-Hwan Im*, Han-Jeong Hwang, Huije Che, and Seunghwan Lee, "An EEG-based Real-time Cortical Rhythmic Activity Monitoring System,"

Physiological Measurements, vol. 28, pp. 1101-1113, 2007. [pdf 1147k]

Chany Lee, Chang-Hwan Im*, and Hyun-Kyo Jung, "Analysis and Design of Whole-Head Magnetic Brain Stimulators: A Simulation Study,"

International Journal of Contol, Automation, and Systems, vol. 5, no. 3, pp. 337-342, 2007.

Chang-Hwan Im*, Hyun-Kyo Jung, Ki-Young Jung, and Soo Yeol Lee, "Reconstruction of Continuous and Focalized Brain Functional Source Images from Electroencephalography,"

IEEE Transactions on Magnetics, vol. 43, no. 4, pp. 1709-1712, 2007. [pdf 461k]

Chang-Hwan Im*, Chany Lee, Kwang-Ok An, Hyun-Kyo Jung, Ki-Young Jung, and Soo Yeol Lee, "Precise Estimation of Brain Electrical Sources Using Anatomically Constrained Area Source (ACAS) Localization,"

IEEE Transactions on Magnetics, vol. 43, no. 4, pp. 1713-1716, 2007.

Chang-Hwan Im*, Arvind Gururajan, Nanyin Zhang, Wei Chen, and Bin He, "Spatial Resolution of High Resolution EEG Cortical Source Imaging Revealed by Localization of Retinotopic Organization in Human Primary Visual Cortex,"

Journal of Neuroscience Methods, vol. 161, no. 1, pp. 142-154, 2007. [pdf 2375k]

Chany Lee, Chang-Hwan Im*, Kyung Choi, and Hyun-Kyo Jung, "Estimation of Solution Accuracy from Leadfield in Magnetoencephalography,"

IEEE Transactions on Magnetics, vol. 43, no. 4, pp. 1701-1704, 2007.

Chany Lee, Chang-Hwan Im*, Hyun-Kyo Jung, Hong-Kyu Kim, and Do Wan Kim, "A Posteriori Error Estimation and Adaptive Node Refinement for Fast Moving Least Square Reproducing Kernel (FMLSRK) Method,"

CMES-Compter Modeling in Engineering & Science, vol. 20, no. 1, pp. 35-41, 2007. [pdf download]

Chang-Hwan Im*, "Dealing with Mismatched fMRI Activations in fMRI Constrained EEG Cortical Source Imaging: A Simulation Study Assuming Various Mismatch Types,"

Medical & Biological Engineering & Computing, vol. 45, pp. 79-90, 2007. [pdf 793k]

Chang-Hwan Im* and Soo Yeol Lee, “A Technique to consider mismatches between fMRI and EEG/MEG sources for fMRI constrained EEG/MEG source imaging: a preliminary simulation study,”

Physics in Medicine and Biology, vol. 51, no. 23, pp. 6005-6021, 2006. [pdf 2859]

Chang-Hwan Im, Zhongming Liu, Nanyin Zhang, Wei Chen, and Bin He, “Functional Cortical Source Imaging from Simultaneously Recorded ERP and fMRI,”

Journal of Neuroscience Methods, vol. 157, no. 1, pp. 118-123, 2006. [pdf 438k]

Chang-Hwan Im*, Kwang-Ok An, Chany Lee, Hyun-Kyo Jung, and Yong-Ho Lee, “Enhancing Accuracy in Magneto- and Electro-encephalography Focal Source Localization,”

IEEE Transactions on Magnetics, vol. 42, no. 4, pp. 1387-1390, 2006.

Kwang-Ok An, Chany Lee, Chang-Hwan Im*, Hyun-Kyo Jung, and Ki-Young Jung, “Improved Magnetoencephalography Source Reconstruction Considering Anatomical Connectivity of Cortical Sources,”

IEEE Transactions on Magnetics, vol. 42, no. 4, pp. 1379-1382, 2006

Chang-Hwan Im*, Hyun-Kyo Jung, and Norio Fujimaki, “fMRI constrained MEG Source Imaging and Consideration of fMRI Invisible Sources,”

Human Brain Mapping, vol. 26, no. 2, pp. 110-118, 2005. [pdf 448k]

Chang-Hwan Im*, Hyun-Kyo Jung, and Norio Fujimaki, “Anatomically constrained dipole adjustment (ANACONDA) for accurate MEG/EEG focal source localizations,”

Physics in Medicine and Biology, vol. 50, pp. 4931-4953, 2005. [pdf 2625k]

Chang-Hwan Im* and Hyun-Kyo Jung, “Numerical Emulator for Walk-through Metal Detectors Using 3D Indirect BIEM,”

IEEE Transactions on Instrumentation and Measurements, vol. 54, no. 3, pp. 1166-1170, 2005.

Ji Hoon Kim, Woo-Seok Kim, Song-Yop Hahn, Jae Moon Lee, Myung Hwan Rue, Bo Hyung Cho, Chang Hwan Im, and Hyun Kyo Jung, “Characteristic Test of HTS Pancake Coil Modules for Small-Sized SMES,”

IEEE Transactions on Applied Superconductivity, vol. 15, no. 2, pp. 1919-1922, 2005.

Chang-Hwan Im, Hyun-Kyo Jung, Jae Yong Han, Hang Ro Lee, and Soo Yeol Lee, “Fast and Robust Localization of Brain Electrical Sources Using Evolution Strategies,” Int. J. Appl. Electrom., vol. 20, no. 3-4, pp. 197-203, 2004.

Kwang-Ok An, Chang-Hwan Im, Hyun-Kyo Jung, Yong-Ho Lee, and Hyukchan Kwon, “Novel Multi-dipole Searching Technique for MEG Source Localization,” IEEE Trans. Magn., vol. 40, no. 2, pp. 627-630, 2004.

Chang-Hwan Im, Hong-Kyu Kim, Hyun-Kyo Jung, and Kyung Choi, “A Novel Algorithm for Multimodal Function Optimization Based on Evolution Strategy,” IEEE Trans. Magn., vol. 40, no. 2, pp. 1224-1227, 2004. [pdf download]

Chang-Hwan Im, Hyun-Kyo Jung, Yong-Ho Lee, and Hyukchan Kwon, “Source Space Localization Technique for Magnetoencephalography(MEG) Source Reconstruction,” Int. J. Appl. Electrom., vol. 20, no. 1, pp. 29-36, 2004.

Hong-Kyu Kim, Jin-Kyo Jung, Kyong-Yop Park, Chang-Hwan Im, Hyun-Kyo Jung, “Efficient Technique for 3-D Finite Element Analysis of Skin Effect in Current-Carrying Conductors,” IEEE Trans. Magn., vol. 40, no. 2, pp. 1326-1329, 2004.

Chang-Hwan Im, Kwang-Ok An, Hyun-Kyo Jung, Yong-Ho Lee, and Hyukchan Kwon, "Assessment Criteria for MEG/EEG Cortical Patch Test," Phys. Med. Biol., vol. 48, no. 15, pp. 2561-2573, 2003. [pdf 1653k]

Chang-Hwan Im, Hyun-Kyo Jung, and Yong-Joo Kim, “Hybrid Genetic Algorithm for Electromagnetic Topology Optimization,” IEEE Trans. Magn., vol. 39, no. 5, pp. 2163-2169, 2003. [pdf download]

Chang-Hwan Im, Hong-Kyu Kim, and Hyun-Kyo Jung, “Electromagnetic Topology Optimization Using Large-Step Markov Chain Method with Novel Local Optimization Algorithm,” Int. J. Appl. Electrom., vol. 18, no. 4, pp. 259-267, 2003.

Jung-Yeop Lee, Jeong-Hae Lee, Chang-Hwan Im, Hyeong-Seok Kim, Kyeong Choi, and Hyun-Kyo Jung, “Selection of Proper Modes of an NRD Guide using Perturbing Boundary Condition,” IEEE Trans. Magn., vol. 39, no. 3, pp. 1246-1249, 2003.

Kwang-Ok An, Chang-Hwan Im, Chang-Hwan Lee, and Hyun-Kyo Jung, “Optimal Design of Magnetic Scale for Linearizing Magnetic Flux Density and Force," Int. J. Appl. Electrom., vol. 18, no. 4, pp.251-258, 2003.

Hong-Kyu Kim, Kyong-Yop Park, Chang-Hwan Im, and Hyun-Kyo Jung, “Optimal Design of Gas Circuit Breaker for Increasing the Small Current Interruption Capacity,” IEEE Trans. Magn., Vol. 39, no.3, pp. 1749-1752, 2003.

Chang-Hwan Im, Hong-Kyu Kim, and Hyun-Kyo Jung, “Novel Technique for Current Density Distribution Analysis of Solidly Modeled Coil,” IEEE Trans. Magn., vol. 38, no. 2, pp. 505-509, 2002.

Chang-Hwan Im, Hong-Kyu Kim, and Hyun-Kyo Jung, “Optimization of Coil Shape in Deflection Yoke Considering Practical Winding Processes,” IEEE Trans. Magn., vol. 38, no. 2, pp.1077-1080, 2002.

Ji Hun Kim, Seung-yong Hahn, Chang Hwan Im, Jae Kwang Kim, Hyun Kyo Jung, and Song-Yop Hahn, “Design of a 200-kJ HTS SMES System,” IEEE Trans. Appl. Supercond., vol. 12, no. 1, pp.774-777, 2002.

Chang-Hwan Im, Hong-Kyu Kim, Chang-Hwan Lee, and Hyun-Kyo Jung, “Analysis of the three-phase Transformer Considering the Non-linear and Anistropic Properties Using the Transmission line Modeling Method and FEM,” IEEE Trans. Magn., vol. 37, no. 5, pp. 3490-3493, 2001.

Chang-Hwan Im, Hong-Kyu Kim, and Hyun-Kyo Jung, “Efficient Technique for 3-D Edge Element Method Considering Geometrical Symmetry,” IEEE Trans. Magn., vol. 37, no. 5, pp. 3190-3193, 2001.