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Chang-Hwan Im
Chang-Hwan Im
Department of Biomedical Engineering, Hanyang University, Seoul, Korea
Verified email at hanyang.ac.kr - Homepage
Title
Cited by
Cited by
Year
Development of an SSVEP-based BCI spelling system adopting a QWERTY-style LED keyboard
HJ Hwang, JH Lim, YJ Jung, H Choi, SW Lee, CH Im
Journal of neuroscience methods 208 (1), 59-65, 2012
3392012
Neurofeedback-based motor imagery training for brain–computer interface (BCI)
HJ Hwang, K Kwon, CH Im
Journal of neuroscience methods 179 (1), 150-156, 2009
3382009
EEG-based brain-computer interfaces: a thorough literature survey
HJ Hwang, S Kim, S Choi, CH Im
International Journal of Human-Computer Interaction 29 (12), 814-826, 2013
3042013
Multimodal function optimization based on particle swarm optimization
JH Seo, CH Im, CG Heo, JK Kim, HK Jung, CG Lee
IEEE transactions on magnetics 42 (4), 1095-1098, 2006
2552006
Inconsistent outcomes of transcranial direct current stimulation may originate from anatomical differences among individuals: electric field simulation using individual MRI data
JH Kim, DW Kim, WH Chang, YH Kim, K Kim, CH Im
Neuroscience letters 564, 6-10, 2014
2232014
Classification of selective attention to auditory stimuli: toward vision-free brain–computer interfacing
DW Kim, HJ Hwang, JH Lim, YH Lee, KY Jung, CH Im
Journal of neuroscience methods 197 (1), 180-185, 2011
185*2011
Machine-learning-based diagnosis of schizophrenia using combined sensor-level and source-level EEG features
M Shim, HJ Hwang, DW Kim, SH Lee, CH Im
Schizophrenia research 176 (2-3), 314-319, 2016
1732016
Hybrid genetic algorithm for electromagnetic topology optimization
CH Im, HK Jung, YJ Kim
IEEE Transactions on Magnetics 39 (5), 2163-2169, 2003
1602003
fNIRS evidence for recognizably different positive emotions
X Hu, C Zhuang, F Wang, YJ Liu, CH Im, D Zhang
Frontiers in human neuroscience 13, 120, 2019
1172019
Magnetic field analysis of 2-D permanent magnet array for planar motor
HS Cho, CH Im, HK Jung
IEEE Transactions on Magnetics 37 (5), 3762-3766, 2001
1172001
Evaluation of local electric fields generated by transcranial direct current stimulation with an extracephalic reference electrode based on realistic 3D body modeling
CH Im, JH Park, M Shim, WH Chang, YH Kim
Physics in Medicine & Biology 57 (8), 2137, 2012
1162012
Changes in network connectivity during motor imagery and execution
YK Kim, E Park, A Lee, CH Im, YH Kim
PloS one 13 (1), e0190715, 2018
1062018
Evaluation of various mental task combinations for near-infrared spectroscopy-based brain-computer interfaces
HJ Hwang, JH Lim, DW Kim, CH Im
Journal of biomedical optics 19 (7), 077005-077005, 2014
1032014
COMETS: A MATLAB toolbox for simulating local electric fields generated by transcranial direct current stimulation (tDCS)
YJ Jung, JH Kim, CH Im
Biomedical engineering letters 3, 39-46, 2013
1032013
A new dual-frequency stimulation method to increase the number of visual stimuli for multi-class SSVEP-based brain–computer interface (BCI)
HJ Hwang, DH Kim, CH Han, CH Im
Brain research 1515, 66-77, 2013
1012013
A ternary hybrid EEG-NIRS brain-computer interface for the classification of brain activation patterns during mental arithmetic, motor imagery, and idle state
J Shin, J Kwon, CH Im
Frontiers in neuroinformatics 12, 5, 2018
982018
Determination of optimal electrode positions for transcranial direct current stimulation (tDCS)
CH Im, HH Jung, JD Choi, SY Lee, KY Jung
Physics in Medicine & Biology 53 (11), N219, 2008
962008
Detection of eye blink artifacts from single prefrontal channel electroencephalogram
WD Chang, HS Cha, K Kim, CH Im
Computer methods and programs in biomedicine 124, 19-30, 2016
922016
Real-time “eye-writing” recognition using electrooculogram
KR Lee, WD Chang, S Kim, CH Im
IEEE Transactions on Neural Systems and Rehabilitation Engineering 25 (1), 37-48, 2016
902016
Decreased EEG synchronization and its correlation with symptom severity in Alzheimer's disease
YM Park, HJ Che, CH Im, HT Jung, SM Bae, SH Lee
Neuroscience research 62 (2), 112-117, 2008
902008
Theta oscillation related to the auditory discrimination process in mismatch negativity: oddball versus control paradigm
D Ko, S Kwon, GT Lee, CH Im, KH Kim, KY Jung
Journal of clinical neurology (Seoul, Korea) 8 (1), 35, 2012
892012
Development of an Online Home Appliance Control System Using Augmented Reality and an SSVEP-Based Brain–Computer Interface
S Park, HS Cha, CH Im
IEEE Access 7, 163604-163614, 2019
862019
Disruptions in small-world cortical functional connectivity network during an auditory oddball paradigm task in patients with schizophrenia
M Shim, DW Kim, SH Lee, CH Im
Schizophrenia research 156 (2-3), 197-203, 2014
842014
COMETS2: an advanced MATLAB toolbox for the numerical analysis of electric fields generated by transcranial direct current stimulation
C Lee, YJ Jung, SJ Lee, CH Im
Journal of neuroscience methods 277, 56-62, 2017
812017
Electroencephalography-based endogenous brain–computer interface for online communication with a completely locked-in patient
CH Han, YW Kim, DY Kim, SH Kim, Z Nenadic, CH Im
Journal of neuroengineering and rehabilitation 16, 1-13, 2019
76*2019
Classification of binary intentions for individuals with impaired oculomotor function:‘eyes-closed’SSVEP-based brain–computer interface (BCI)
JH Lim, HJ Hwang, CH Han, KY Jung, CH Im
Journal of neural engineering 10 (2), 026021, 2013
75*2013
The influence of an educational course on language expression and treatment of gaming addiction for massive multiplayer online role-playing game (MMORPG) players
PW Kim, SY Kim, M Shim, CH Im, YM Shon
Computers & Education 63, 208-217, 2013
712013
An improved particle swarm optimization algorithm mimicking territorial dispute between groups for multimodal function optimization problems
JH Seo, CH Im, SY Kwak, CG Lee, HK Jung
IEEE Transactions on Magnetics 44 (6), 1046-1049, 2008
712008
Spatial resolution of EEG cortical source imaging revealed by localization of retinotopic organization in human primary visual cortex
CH Im, A Gururajan, N Zhang, W Chen, B He
Journal of neuroscience methods 161 (1), 142-154, 2007
712007
Altered cortical functional network in major depressive disorder: A resting-state electroencephalogram study
M Shim, CH Im, YW Kim, SH Lee
NeuroImage: Clinical 19, 1000-1007, 2018
682018
Development of a hybrid mental spelling system combining SSVEP-based brain–computer interface and webcam-based eye tracking
JH Lim, JH Lee, HJ Hwang, DH Kim, CH Im
Biomedical Signal Processing and Control 21, 99-104, 2015
662015
A novel algorithm for multimodal function optimization based on evolution strategy
CH Im, HK Kim, HK Jung, K Choi
IEEE transactions on magnetics 40 (2), 1224-1227, 2004
642004
Performance enhancement of a brain-computer interface using high-density multi-distance NIRS
J Shin, J Kwon, J Choi, CH Im
Scientific reports 7 (1), 1-10, 2017
612017
Clinical implications of quantitative electroencephalography and current source density in patients with Alzheimer’s disease
JS Kim, SH Lee, G Park, S Kim, SM Bae, DW Kim, CH Im
Brain Topography 25, 461-474, 2012
612012
Brain networks responsible for sense of agency: an EEG study
SY Kang, CH Im, M Shim, FB Nahab, J Park, DW Kim, J Kakareka, ...
PloS one 10 (8), e0135261, 2015
602015
Toward more intuitive brain–computer interfacing: classification of binary covert intentions using functional near-infrared spectroscopy
HJ Hwang, H Choi, JY Kim, WD Chang, DW Kim, K Kim, S Jo, CH Im
Journal of biomedical optics 21 (9), 091303-091303, 2016
592016
Reduced source activity of event-related potentials for affective facial pictures in schizophrenia patients
HT Jung, DW Kim, S Kim, CH Im, SH Lee
Schizophrenia research 136 (1-3), 150-159, 2012
592012
Individually customized transcranial temporal interference stimulation for focused modulation of deep brain structures: a simulation study with different head models
S Lee, C Lee, J Park, CH Im
Scientific reports 10 (1), 11730, 2020
562020
The loudness dependence of the auditory evoked potential (LDAEP) as a predictor of the response to escitalopram in patients with generalized anxiety disorder
YM Park, DW Kim, S Kim, CH Im, SH Lee
Psychopharmacology 213, 625-632, 2011
552011
Global synchronization index as a biological correlate of cognitive decline in Alzheimer's disease
SH Lee, YM Park, DW Kim, CH Im
Neuroscience research 66 (4), 333-339, 2010
552010
Evaluation of feature extraction methods for EEG-based brain–computer interfaces in terms of robustness to slight changes in electrode locations
SA Park, HJ Hwang, JH Lim, JH Choi, HK Jung, CH Im
Medical & biological engineering & computing 51, 571-579, 2013
542013
A novel array-type transcranial direct current stimulation (tDCS) system for accurate focusing on targeted brain areas
JH Park, SB Hong, DW Kim, M Suh, CH Im
IEEE Transactions on Magnetics 47 (5), 882-885, 2011
512011
Hemodynamic responses in rat brain during transcranial direct current stimulation: a functional near-infrared spectroscopy study
CH Han, H Song, YG Kang, BM Kim, CH Im
Biomedical optics express 5 (6), 1812-1821, 2014
472014
Localization and propagation analysis of ictal source rhythm by electrocorticography
JS Kim, CH Im, YJ Jung, EY Kim, SK Lee, CK Chung
NeuroImage 52 (4), 1279-1288, 2010
452010
Dysfunctional gamma-band activity during face structural processing in schizophrenia patients
SH Lee, DW Kim, EY Kim, S Kim, CH Im
Schizophrenia research 119 (1-3), 191-197, 2010
452010
An unsupervised eye blink artifact detection method for real-time electroencephalogram processing
WD Chang, JH Lim, CH Im
Physiological measurement 37 (3), 401, 2016
442016
Electrophysiologic disturbances during daytime in patients with restless legs syndrome: further evidence of cognitive dysfunction?
KY Jung, YS Koo, BJ Kim, D Ko, GT Lee, KH Kim, CH Im
Sleep Medicine 12 (4), 416-421, 2011
442011
Machine-learning-based classification between post-traumatic stress disorder and major depressive disorder using P300 features
M Shim, MJ Jin, CH Im, SH Lee
NeuroImage: Clinical 24, 102001, 2019
432019
An electrofusion chip with a cell delivery system driven by surface tension
J Ju, JM Ko, HC Cha, JY Park, CH Im, SH Lee
Journal of Micromechanics and Microengineering 19 (1), 015004, 2008
422008
Development of an electrooculogram-based eye-computer interface for communication of individuals with amyotrophic lateral sclerosis
WD Chang, HS Cha, DY Kim, SH Kim, CH Im
Journal of neuroengineering and rehabilitation 14, 1-13, 2017
412017
Source activation of P300 correlates with negative symptom severity in patients with schizophrenia
DW Kim, M Shim, JI Kim, CH Im, SH Lee
Brain topography 27, 307-317, 2014
412014
A novel EEG-based brain mapping to determine cortical activation patterns in normal children and children with cerebral palsy during motor imagery tasks
YK Shin, DR Lee, HJ Hwang, SJH You, CH Im
NeuroRehabilitation 31 (4), 349-355, 2012
412012
Evaluation of algorithms for intracranial EEG (iEEG) source imaging of extended sources: feasibility of using iEEG source imaging for localizing epileptogenic zones in …
JH Cho, SB Hong, YJ Jung, HC Kang, HD Kim, M Suh, KY Jung, CH Im
Brain topography 24, 91-104, 2011
412011
Toward a compact hybrid brain-computer interface (BCI): Performance evaluation of multi-class hybrid EEG-fNIRS BCIs with limited number of channels
J Kwon, J Shin, CH Im
PloS one 15 (3), e0230491, 2020
402020
Brain areas responsible for vigilance: an EEG source imaging study
JH Kim, DW Kim, CH Im
Brain topography 30, 343-351, 2017
402017
Dysfunctional frontal lobe activity during inhibitory tasks in individuals with childhood trauma: an event-related potential study
S Kim, JS Kim, MJ Jin, CH Im, SH Lee
Neuroimage: clinical 17, 935-942, 2018
382018
Auditory evoked potential could reflect emotional sensitivity and impulsivity
JS Kim, S Kim, W Jung, CH Im, SH Lee
Scientific reports 6 (1), 37683, 2016
382016
Early visual processing deficits in patients with schizophrenia during spatial frequency-dependent facial affect processing
DW Kim, M Shim, MJ Song, CH Im, SH Lee
Schizophrenia Research 161 (2-3), 314-321, 2015
382015
Spatiotemporospectral characteristics of scalp ictal EEG in mesial temporal lobe epilepsy with hippocampal sclerosis
KY Jung, JK Kang, JH Kim, CH Im, KH Kim, HK Jung
Brain research 1287, 206-219, 2009
382009
Computational EEG analysis
CH Im
Springer Singap Singap 10, 978-981, 2018
372018
Source imaging of P300 auditory evoked potentials and clinical correlations in patients with posttraumatic stress disorder
KY Bae, DW Kim, CH Im, SH Lee
Progress in Neuro-Psychopharmacology and Biological Psychiatry 35 (8), 1908-1917, 2011
372011
Localization of ictal onset zones in Lennox-Gastaut syndrome using directional connectivity analysis of intracranial electroencephalography
YJ Jung, HC Kang, KO Choi, JS Lee, DS Kim, JH Cho, SH Kim, CH Im, ...
Seizure 20 (6), 449-457, 2011
372011
fMRI‐constrained MEG source imaging and consideration of fMRI invisible sources
CH Im, HK Jung, N Fujimaki
Human brain mapping 26 (2), 110-118, 2005
372005
Assessment criteria for MEG/EEG cortical patch tests
CH Im, KO An, HK Jung, H Kwon, YH Lee
Physics in Medicine & Biology 48 (15), 2561, 2003
372003
Correlation between inter-blink interval and episodic encoding during movie watching
YS Shin, W Chang, J Park, CH Im, SI Lee, IY Kim, DP Jang
PloS one 10 (11), e0141242, 2015
362015
Estimation of directional coupling between cortical areas using Near-Infrared Spectroscopy (NIRS)
CH Im, YJ Jung, S Lee, D Koh, DW Kim, BM Kim
Optics express 18 (6), 5730-5739, 2010
362010
Design of a 200-kJ HTS SMES system
JH Kim, S Hahn, CH Im, JK Kim, HK Jung, SY Hahn
IEEE transactions on applied superconductivity 12 (1), 774-777, 2002
362002
An emergency call system for patients in locked‐in state using an SSVEP‐based brain switch
JH Lim, YW Kim, JH Lee, KO An, HJ Hwang, HS Cha, CH Han, CH Im
Psychophysiology 54 (11), 1632-1643, 2017
352017
Real-time recognition of facial expressions using facial electromyograms recorded around the eyes for social virtual reality applications
HS Cha, SJ Choi, CH Im
IEEE Access 8, 62065-62075, 2020
342020
Abnormal cortical neural synchrony during working memory in schizophrenia
SS Kang, AW MacDonald III, MV Chafee, CH Im, EM Bernat, ...
Clinical Neurophysiology 129 (1), 210-221, 2018
342018
Clinical feasibility of brain‐computer interface based on steady‐state visual evoked potential in patients with locked‐in syndrome: Case studies
HJ Hwang, CH Han, JH Lim, YW Kim, SI Choi, KO An, JH Lee, HS Cha, ...
Psychophysiology 54 (3), 444-451, 2017
342017
Disrupted cortical brain network in post-traumatic stress disorder patients: a resting-state electroencephalographic study
M Shim, CH Im, SH Lee
Translational psychiatry 7 (9), e1231-e1231, 2017
332017
Transcranial direct current stimulation on primary sensorimotor area has no effect in patients with drug-naive restless legs syndrome: a proof-of-concept clinical trial
YS Koo, SM Kim, C Lee, BU Lee, YJ Moon, YW Cho, CH Im, JW Choi, ...
Sleep medicine 16 (2), 280-287, 2015
332015
Positive and negative symptom scores are correlated with activation in different brain regions during facial emotion perception in schizophrenia patients: a voxel-based sLORETA …
DW Kim, HS Kim, SH Lee, CH Im
Schizophrenia research 151 (1-3), 165-174, 2013
332013
Cortical volume and 40-Hz auditory-steady-state responses in patients with schizophrenia and healthy controls
S Kim, SK Jang, DW Kim, M Shim, YW Kim, CH Im, SH Lee
NeuroImage: Clinical 22, 101732, 2019
322019
Source localization of periodic sharp wave complexes using independent component analysis in sporadic Creutzfeldt–Jakob disease
KY Jung, DW Seo, DL Na, CS Chung, IK Lee, K Oh, CH Im, HK Jung
Brain research 1143, 228-237, 2007
322007
Computer-aided performance evaluation of a multichannel transcranial magnetic stimulation system
CH Im, C Lee
IEEE transactions on magnetics 42 (12), 3803-3808, 2006
322006
Performance enhancement of facial electromyogram-based facial-expression recognition for social virtual reality applications using linear discriminant analysis adaptation
HS Cha, CH Im
Virtual Reality 26 (1), 385-398, 2022
312022
Design of wearable EEG devices specialized for passive brain–computer interface applications
S Park, CH Han, CH Im
Sensors 20 (16), 4572, 2020
312020
Causal influence of epileptic network during spike-and-wave discharge in juvenile myoclonic epilepsy
C Lee, SM Kim, YJ Jung, CH Im, DW Kim, KY Jung
Epilepsy research 108 (2), 257-266, 2014
302014
Increased corticomuscular coherence in idiopathic REM sleep behavior disorder
KY Jung, JH Cho, D Ko, HY Seok, HK Yoon, HJ Lee, L Kim, CH Im
Frontiers in Neurology 3, 60, 2012
292012
Functional cortical source imaging from simultaneously recorded ERP and fMRI
CH Im, Z Liu, N Zhang, W Chen, B He
Journal of Neuroscience Methods 157 (1), 118-123, 2006
292006
Subject-independent functional near-infrared spectroscopy-based brain–computer interfaces based on convolutional neural networks
J Kwon, CH Im
Frontiers in human neuroscience 15, 646915, 2021
282021
Enhanced template matching using dynamic positional warping for identification of specific patterns in electroencephalogram
WD Chang, CH Im
Journal of Applied Mathematics 2014, 2014
282014
Auditory brain-computer interfaces (BCIs) and their practical applications
DW Kim, JC Lee, YM Park, IY Kim, CH Im
Biomedical Engineering Letters 2, 13-17, 2012
282012
An image-guided transcranial direct current stimulation system: a pilot phantom study
YJ Jung, JH Kim, D Kim, CH Im
Physiological measurement 34 (8), 937, 2013
272013
Detection of craving for gaming in adolescents with internet gaming disorder using multimodal biosignals
H Kim, J Ha, WD Chang, W Park, L Kim, CH Im
Sensors 18 (1), 102, 2018
262018
Fast and robust real-time estimation of respiratory rate from photoplethysmography
H Kim, JY Kim, CH Im
Sensors 16 (9), 1494, 2016
262016
Efficient technique for 3-D finite element analysis of skin effect in current-carrying conductors
HK Kim, JK Jung, KY Park, CH Im, HK Jung
IEEE transactions on magnetics 40 (2), 1326-1329, 2004
262004
Latent awareness: early conscious access to motor preparation processes is linked to the readiness potential
E Parés-Pujolràs, YW Kim, CH Im, P Haggard
Neuroimage 202, 116140, 2019
252019
Ternary near-infrared spectroscopy brain-computer interface with increased information transfer rate using prefrontal hemodynamic changes during mental arithmetic, breath …
J Shin, J Kwon, J Choi, CH Im
IEEE Access 6, 19491-19498, 2018
252018
Altered cortical thickness-based individualized structural covariance networks in patients with schizophrenia and bipolar disorder
S Kim, YW Kim, H Jeon, CH Im, SH Lee
Journal of Clinical Medicine 9 (6), 1846, 2020
242020
Altered network characteristics of spike-wave discharges in juvenile myoclonic epilepsy
C Lee, CH Im, YS Koo, JA Lim, TJ Kim, JI Byun, JS Sunwoo, J Moon, ...
Clinical EEG and neuroscience 48 (2), 111-117, 2017
242017
Estimating consumers' subjective preference using functional near infrared spectroscopy: A feasibility study
JY Kim, KI Kim, CH Han, JH Lim, CH Im
Journal of near infrared spectroscopy 24 (5), 433-441, 2016
242016
Altered cortical functional networks in patients with schizophrenia and bipolar disorder: a resting-state electroencephalographic study
S Kim, YW Kim, M Shim, MJ Jin, CH Im, SH Lee
Frontiers in psychiatry 11, 661, 2020
232020
Mismatch negativity and cortical thickness in patients with schizophrenia and bipolar disorder
S Kim, H Jeon, KI Jang, YW Kim, CH Im, SH Lee
Schizophrenia Bulletin 45 (2), 425-435, 2019
232019
Removing the interdependency between horizontal and vertical eye-movement components in electrooculograms
WD Chang, HS Cha, CH Im
Sensors 16 (2), 227, 2016
232016
An EEG-based real-time cortical rhythmic activity monitoring system
CH Im, HJ Hwang, H Che, S Lee
Physiological measurement 28 (9), 1101, 2007
232007
Comparison of visual stimuli for steady-state visual evoked potential-based brain-computer interfaces in virtual reality environment in terms of classification accuracy and …
K Choi, S Park, CH Im
Computational intelligence and neuroscience 2019, 2019
222019
EEG spectral analysis
DW Kim, CH Im
Computational EEG analysis: Methods and applications, 35-53, 2018
222018
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