Search filters

List of works by Chang-Hwan Im

A New Neuronal Electrical Source Model Considering Electrophysiology to Simulate Realistic Electroencephalography (EEG) Forward Signals

A Novel Array-Type Transcranial Direct Current Stimulation (tDCS) System for Accurate Focusing on Targeted Brain Areas

A Ternary Hybrid EEG-NIRS Brain-Computer Interface for the Classification of Brain Activation Patterns during Mental Arithmetic, Motor Imagery, and Idle State.

scientific article published on 23 February 2018

A method for stable electrical connection of a multi-channeled polyimide electrode with PCB.

scientific article published in January 2012

A new dual-frequency stimulation method to increase the number of visual stimuli for multi-class SSVEP-based brain-computer interface (BCI).

scientific article

A novel EEG-based brain mapping to determine cortical activation patterns in normal children and children with cerebral palsy during motor imagery tasks

scientific article

A technique to consider mismatches between fMRI and EEG/MEG sources for fMRI-constrained EEG/MEG source imaging: a preliminary simulation study

scientific article published on 30 October 2006

A vision-free brain-computer interface (BCI) paradigm based on auditory selective attention

scientific article published in January 2011

Abnormal cortical neural synchrony during working memory in schizophrenia

scientific article

Altered Cortical Functional Networks in Patients With Schizophrenia and Bipolar Disorder: A Resting-State Electroencephalographic Study

scientific article published on 17 July 2020

Altered Cortical Thickness-Based Individualized Structural Covariance Networks in Patients with Schizophrenia and Bipolar Disorder

scientific article published on 13 June 2020

Altered Network Characteristics of Spike-Wave Discharges in Juvenile Myoclonic Epilepsy.

scientific article published on 23 December 2015

Altered cortical functional network during behavioral inhibition in individuals with childhood trauma

scientific article published on 04 July 2018

Altered cortical functional network in major depressive disorder: A resting-state electroencephalogram study

scientific article published on 12 June 2018

An EEG-based real-time cortical functional connectivity imaging system

scientific article published on 24 June 2011

An EEG-based real-time cortical rhythmic activity monitoring system.

scientific article published on 5 September 2007

An EEG-based real-time cortical rhythmic activity monitoring system: a pilot study

scientific article published in January 2007

An Improved Particle Swarm Optimization Algorithm Mimicking Territorial Dispute Between Groups for Multimodal Function Optimization Problems

An electrofusion chip with a cell delivery system driven by surface tension

An emergency call system for patients in locked-in state using an SSVEP-based brain switch.

scientific article published on 11 July 2017

An image-guided transcranial direct current stimulation system: a pilot phantom study.

scientific article published on 30 July 2013

An unsupervised eye blink artifact detection method for real-time electroencephalogram processing.

scientific article

Analysis of a nanopositioning actuator using numerical and analytic methods

scholarly article by Jong Seok Rho et al published 29 February 2008 in Smart Materials and Structures

Analysis of the three-phase transformer considering the nonlinear and anisotropic properties using the transmission line modeling method and FEM

article

Anatomically constrained dipole adjustment (ANACONDA) for accurate MEG/EEG focal source localizations

scientific article published on 4 October 2005

Applied Mathematics in Biomedical Sciences and Engineering

Applied Mathematics in Biomedical Sciences and Engineering 2014

Assessment criteria for MEG/EEG cortical patch tests

scientific article published in August 2003

Assessment of user voluntary engagement during neurorehabilitation using functional near-infrared spectroscopy: a preliminary study.

scientific article published on 23 March 2018

Auditory brain-computer interfaces (BCIs) and their practical applications

Auditory evoked potential could reflect emotional sensitivity and impulsivity

scientific article published on 02 December 2016

Automatic Identification of Interictal Epileptiform Discharges in Secondary Generalized Epilepsy.

scientific article published on 09 June 2016

Brain Areas Responsible for Vigilance: An EEG Source Imaging Study

scientific article published on 4 January 2017

Brain Networks Responsible for Sense of Agency: An EEG Study.

scientific article published on 13 August 2015

COMETS2: An advanced MATLAB toolbox for the numerical analysis of electric fields generated by transcranial direct current stimulation

scientific article published on 15 December 2016

COMETS: A MATLAB toolbox for simulating local electric fields generated by transcranial direct current stimulation (tDCS)

article published in 2013

Can Anodal Transcranial Direct Current Stimulation Increase Steady-State Visual Evoked Potential Responses?

scientific article published on 11 November 2019

Causal influence of epileptic network during spike-and-wave discharge in juvenile myoclonic epilepsy

scientific article published on 16 November 2013

Changes in network connectivity during motor imagery and execution

scientific article published on 11 January 2018

Characteristic analysis of planar motor using the volume integral equation method

scholarly article

Classification of binary intentions for individuals with impaired oculomotor function: 'eyes-closed' SSVEP-based brain-computer interface (BCI).

scientific article published on 26 March 2013

Classification of selective attention to auditory stimuli: Toward vision-free brain–computer interfacing

scientific article published on 16 February 2011

Clinical feasibility of brain-computer interface based on steady-state visual evoked potential in patients with locked-in syndrome: Case studies

scientific article published on 3 December 2016

Clinical implications of quantitative electroencephalography and current source density in patients with Alzheimer's disease

scientific article

Combined use of multiple computational intracranial EEG analysis techniques for the localization of epileptogenic zones in Lennox-Gastaut syndrome

scientific article published in July 2014

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

scientific article published on 01 July 2019

Comparison of magnetic field distributions generated by various permanent magnets for transcranial static magnetic stimulation: A simulation study

scientific article published on 28 September 2019

Computational methods in neuroengineering.

scientific article published in July 2013

Correction: Brain Networks Responsible for Sense of Agency: An EEG Study

scientific article published on 2 September 2015

Correlation between Inter-Blink Interval and Episodic Encoding during Movie Watching

scientific article

Corrigendum: Interhemispheric and Intrahemispheric Connectivity From the Left Pars Opercularis Within the Language Network Is Modulated by Transcranial Stimulation in Healthy Subjects

scientific article published on 14 July 2020

Cortical volume and 40-Hz auditory-steady-state responses in patients with schizophrenia and healthy controls

article

Data-Driven User Feedback: An Improved Neurofeedback Strategy considering the Interindividual Variability of EEG Features

scientific article

Dealing with mismatched fMRI activations in fMRI constrained EEG cortical source imaging: a simulation study assuming various mismatch types

scientific article published on 3 January 2007

Decreased EEG synchronization and its correlation with symptom severity in Alzheimer's disease.

scientific article published on 10 July 2008

Depth-dependent cerebral hemodynamic responses following direct cortical electrical stimulation (DCES) revealed by in vivo dual-optical imaging techniques

scientific article published in March 2012

Design of Wearable EEG Devices Specialized for Passive Brain-Computer Interface Applications

scientific article published on 14 August 2020

Design of a 200-kJ HTS SMES System

Detection of Craving for Gaming in Adolescents with Internet Gaming Disorder Using Multimodal Biosignals

scientific article published in January 2018

Detection of eye blink artifacts from single prefrontal channel electroencephalogram.

scientific article published on 26 October 2015

Determination of optimal electrode positions for transcranial direct current stimulation (tDCS).

scientific article published on 19 May 2008

Development of a Brain-Computer Interface Toggle Switch with Low False-Positive Rate Using Respiration-Modulated Photoplethysmography

scientific article published on 08 January 2020

Development of a hybrid mental speller combining EEG-based brain-computer interface and webcam-based eye-tracking

scientific article published in January 2013

Development of a hybrid mental spelling system combining SSVEP-based brain–computer interface and webcam-based eye tracking

article published in 2015

Development of an "eyes-closed" brain-computer interface system for communication of patients with oculomotor impairment

scientific article

Development of an SSVEP-based BCI spelling system adopting a QWERTY-style LED keyboard

scientific article

Development of an electrooculogram-based eye-computer interface for communication of individuals with amyotrophic lateral sclerosis

scientific article published on 8 September 2017

Development of an electrooculogram-based human-computer interface using involuntary eye movement by spatially rotating sound for communication of locked-in patients.

scientific article

Disrupted cortical brain network in post-traumatic stress disorder patients: a resting-state electroencephalographic study

scientific article published on 12 September 2017

Disruption of the Posterior Medial Network during the Acute Stage of Transient Global Amnesia: A Preliminary Study.

scientific article published on 11 November 2014

Disruptions in small-world cortical functional connectivity network during an auditory oddball paradigm task in patients with schizophrenia.

scientific article published on 10 May 2014

Dysfunctional Patterns of Gamma-Band Activity in Response to Human Faces Compared to Non-Facial Stimuli in Patients with Schizophrenia

scientific article published on 18 May 2016

Dysfunctional frontal lobe activity during inhibitory tasks in individuals with childhood trauma: An event-related potential study.

scientific article

Dysfunctional gamma-band activity during face structural processing in schizophrenia patients

scientific article published on 19 March 2010

EEG response to game-craving according to personal preference for games

scientific article published on 16 October 2020

EEG-Based Brain-Computer Interfaces: A Thorough Literature Survey

EEG-based real-time dynamic neuroimaging

scientific article published in January 2009

Early visual processing deficits in patients with schizophrenia during spatial frequency-dependent facial affect processing

scientific article

Efficient technique for 3-D edge element method considering geometrical symmetry

Electroencephalography-based endogenous brain-computer interface for online communication with a completely locked-in patient

scientific article published on 30 January 2019

Electromagnetic topology optimization using large-step markov chain method with novel local optimization algorithm

scholarly article

Electrophysiologic disturbances during daytime in patients with restless legs syndrome: further evidence of cognitive dysfunction?

scientific article published on 5 March 2011

Electrophysiological correlates of object-repetition effects: sLORETA imaging with 64-channel EEG and individual MRI.

scientific article

Enhanced Template Matching Using Dynamic Positional Warping for Identification of Specific Patterns in Electroencephalogram

Enhancing accuracy in magneto-and electroencephalography focal source localization

Erratum: Reduced Frontal P3a Amplitude in Migraine Patients during the Pain-Free Period.

scientific article

Estimating Consumers' Subjective Preference Using Functional near Infrared Spectroscopy: A Feasibility Study

article

Estimation of Brain Electrical Sources Using Multilevel Source Space Model

article published in 2007

Estimation of Solution Accuracy From Leadfield Matrix in Magnetoencephalography

Estimation of Symptom Severity Scores for Patients with Schizophrenia Using ERP Source Activations during a Facial Affect Discrimination Task.

scientific article published on 3 August 2017

Estimation of directional coupling between cortical areas using Near-Infrared Spectroscopy (NIRS).

scientific article published in March 2010

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.

scientific article published on 3 March 2011

Evaluation of feature extraction methods for EEG-based brain-computer interfaces in terms of robustness to slight changes in electrode locations

scientific article published on 17 January 2013

Evaluation of local electric fields generated by transcranial direct current stimulation with an extracephalic reference electrode based on realistic 3D body modeling

scientific article published on 28 March 2012

Evaluation of various mental task combinations for near-infrared spectroscopy-based brain-computer interfaces

scientific article published in January 2014

Extraction of qEEG variables to diagnose early dementia

scientific article published in January 2007

Fast and Robust Real-Time Estimation of Respiratory Rate from Photoplethysmography

scientific article published on 14 September 2016

Fast and robust localization of brain electrical sources using evolution strategies: Monte-carlo simulation and phantom experiment studies

scholarly article

Feasibility and test-retest reliability of an electroencephalography-based brain mapping system in children with cerebral palsy: a preliminary investigation

scientific article published on 9 March 2012

Finite element analysis of deflection yoke using a novel technique for analyzing current density distribution

scholarly article

Functional cortical source imaging from simultaneously recorded ERP and fMRI.

scientific article published on 3 May 2006

Global Electroencephalography Synchronization as a New Indicator for Tracking Emotional Changes of a Group of Individuals during Video Watching.

scientific article published in December 2017

Global synchronization index as a biological correlate of cognitive decline in Alzheimer's disease.

scientific article published on 16 December 2009

Hemodynamic responses in rat brain during transcranial direct current stimulation: a functional near-infrared spectroscopy study.

scientific article

Hybrid genetic algorithm for electromagnetic topology optimization

Improved magnetoencephalography source reconstruction considering anatomical connectivity of cortical sources

Inconsistent outcomes of transcranial direct current stimulation (tDCS) may be originated from the anatomical differences among individuals: a simulation study using individual MRI data

scientific article

Inconsistent outcomes of transcranial direct current stimulation may originate from anatomical differences among individuals: electric field simulation using individual MRI data

scientific article

Increased Corticomuscular Coherence in Idiopathic REM Sleep Behavior Disorder

scientific article published on 23 April 2012

Individually customized transcranial temporal interference stimulation for focused modulation of deep brain structures: a simulation study with different head models

scientific article published on 16 July 2020

Influence of inter-stimulus interval on 40-Hz auditory steady-state response in patients with schizophrenia

scientific article published in 2023

Influence of orientation and area of the extended cortical current source on the magnetoencephalography (MEG) inverse problem

Influence of spatial frequency and emotion expression on face processing in patients with panic disorder

scientific article published on 3 March 2016

Integrative Evaluation of Automated Massage Combined with Thermotherapy: Physical, Physiological, and Psychological Viewpoints.

scientific article published on 15 December 2016

Interhemispheric and Intrahemispheric Connectivity From the Left Pars Opercularis Within the Language Network Is Modulated by Transcranial Stimulation in Healthy Subjects

scientific article published on 17 March 2020

Latent awareness: Early conscious access to motor preparation processes is linked to the readiness potential

scientific article published on 29 August 2019

Localization and propagation analysis of ictal source rhythm by electrocorticography.

scientific article published on 24 April 2010

Localization of epileptogenic zones in Lennox-Gastaut syndrome (LGS) using graph theoretical analysis of ictal intracranial EEG: a preliminary investigation

scientific article published on 11 March 2014

Localization of epileptogenic zones in Lennox-Gastaut syndrome using frequency domain source imaging of intracranial electroencephalography: a preliminary investigation

scientific article published on 28 January 2013

Localization of ictal onset zones in Lennox-Gastaut syndrome using directed transfer function method

scientific article published in January 2011

Localization of ictal onset zones in Lennox-Gastaut syndrome using directional connectivity analysis of intracranial electroencephalography.

scientific article published on 23 April 2011

Localization of ictal onset zones in Lennox–Gastaut syndrome (LGS) based on information theoretical time delay analysis of intracranial electroencephalography (iEEG)

scientific article published on 08 November 2011

Low frequency alpha (8–10 Hz) activity correlated with inhibitory behavior ⬇️

scholarly article

Machine-Learning-Based Detection of Craving for Gaming Using Multimodal Physiological Signals: Validation of Test-Retest Reliability for Practical Use

scientific article published on 09 August 2019

Machine-learning-based classification between post-traumatic stress disorder and major depressive disorder using P300 features

scientific article published on 05 September 2019

Machine-learning-based diagnosis of schizophrenia using combined sensor-level and source-level EEG features.

scientific article published on 14 July 2016

Magnetic field analysis of 2-D permanent magnet array for planar motor

Magnetoencephalography cortical source imaging using spherical mapping

Magnetoencephalography source localization using improved simplex method

Mathematical Issues in the Inference of Causal Interactions among Multichannel Neural Signals

Mismatch Negativity and Cortical Thickness in Patients With Schizophrenia and Bipolar Disorder

scientific article published on 01 March 2019

Motor imagery learning across a sequence of trials in stroke patients

scientific article published on 26 August 2015

Multimodal function optimization based on particle swarm optimization

Neurofeedback-based motor imagery training for brain-computer interface (BCI).

scientific article published on 29 January 2009

New Method for Pure-Tone Audiometry Using Electrooculogram: A Proof-of-Concept Study

scientific article published on 28 October 2018

New Strategy for Finite Element Mesh Generation for Accurate Solutions of Electroencephalography Forward Problems

scientific article published on 02 August 2018

Novel technique for current density distribution analysis of solidly modeled coil

Numerical computation of inductance of complex coil systems

scholarly article

On the Feasibility of Using an Ear-EEG to Develop an Endogenous Brain-Computer Interface

scientific article published on 29 August 2018

Optimal design of gas circuit breaker for increasing the small current interruption capacity

Optimal design of magnetic scale for linearizing magnetic flux density and force

scholarly article

Optimization of the coil shape in deflection yoke considering practical coil winding processes

Performance Improvement of Near-Infrared Spectroscopy-Based Brain-Computer Interface Using Regularized Linear Discriminant Analysis Ensemble Classifier Based on Bootstrap Aggregating

scientific article published on 04 March 2020

Performance Improvement of Near-Infrared Spectroscopy-based Brain-Computer Interfaces Using Transcranial Near-Infrared Photobiomodulation with the Same Device

scientific article published on 13 October 2020

Performance Prediction for a Near-Infrared Spectroscopy-Brain–Computer Interface Using Resting-State Functional Connectivity of the Prefrontal Cortex

scientific article published on 11 May 2018

Performance enhancement of a brain-computer interface using high-density multi-distance NIRS.

scientific article published on 29 November 2017

Point Collocation Mesh-Free Method Using FMLSRKM for Solving Axisymmetric Laplace Equation

Positive and negative symptom scores are correlated with activation in different brain regions during facial emotion perception in schizophrenia patients: a voxel-based sLORETA source activity study

scientific article published on 20 November 2013

Precise Estimation of Brain Electrical Sources Using Anatomically Constrained Area Source (ACAS) Localization

article by Chang-Hwan Im et al published April 2007 in IEEE Transactions on Magnetics

Prediction Method of Walking Speed at Swing Phase using Soleus Electromyogram Signal at Previous Stance Phase

scientific article published on 01 July 2018

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

scientific article published on 12 February 2020

Quantitative model for the change of optical resonance in neural activity detection systems based on surface plasmon resonance

Real-Time "Eye-Writing" Recognition Using Electrooculogram

scientific article published on 15 March 2016

Recent advances in biomagnetism and its applications.

scientific article published on 12 July 2017

Reconstruction of Continuous and Focalized Brain Functional Source Images From Electroencephalography

Reduced Frontal P3a Amplitude in Migraine Patients during the Pain-Free Period.

scientific article published on 3 January 2013

Reduced source activity of event-related potentials for affective facial pictures in schizophrenia patients

scientific article published on 25 November 2011

Removing the Interdependency between Horizontal and Vertical Eye-Movement Components in Electrooculograms

scientific article published on 14 February 2016

Riemannian classifier enhances the accuracy of machine-learning-based diagnosis of PTSD using resting EEG

scientific article published on 03 May 2020

Soldering-based easy packaging of thin polyimide multichannel electrodes for neuro-signal recording

article by Dong-Hyun Baek et al published 26 September 2012 in Journal of Micromechanics and Microengineering

Source activation during facial emotion perception correlates with positive and negative symptoms scores of schizophrenia

scientific article

Source activation of P300 correlates with negative symptom severity in patients with schizophrenia

scientific article published on 30 July 2013

Source imaging of P300 auditory evoked potentials and clinical correlations in patients with posttraumatic stress disorder

scientific article

Source localization of periodic sharp wave complexes using independent component analysis in sporadic Creutzfeldt-Jakob disease

scientific article

Spatial resolution of EEG cortical source imaging revealed by localization of retinotopic organization in human primary visual cortex

scientific article published on 13 November 2006

Spatiotemporospectral characteristics of scalp ictal EEG in mesial temporal lobe epilepsy with hippocampal sclerosis

scientific article

T183. AUDITORY-STEADY-STATE RESPONSES AND CORTICAL VOLUME IN PATIENTS WITH SCHIZOPHRENIA.

scientific article

Techniques for Efficient Computation of Electric Fields Generated by Transcranial Direct-Current Stimulation

Ternary Near-Infrared Spectroscopy Brain-Computer Interface With Increased Information Transfer Rate Using Prefrontal Hemodynamic Changes During Mental Arithmetic, Breath-Holding, and Idle State

The loudness dependence of the auditory evoked potential (LDAEP) as a predictor of the response to escitalopram in patients with generalized anxiety disorder.

scientific article

Theta oscillation related to the auditory discrimination process in mismatch negativity: oddball versus control paradigm.

scientific article published on 31 March 2012

Three-dimensional constrained optimization of modular toroid-type SMES using co-evolutionary algorithm

scholarly article

Toward a compact hybrid brain-computer interface (BCI): Performance evaluation of multi-class hybrid EEG-fNIRS BCIs with limited number of channels

scientific article published on 18 March 2020

Toward more intuitive brain-computer interfacing: classification of binary covert intentions using functional near-infrared spectroscopy

scientific article published in September 2016

Transcranial direct current stimulation on primary sensorimotor area has no effect in patients with drug-naïve restless legs syndrome: a proof-of-concept clinical trial

scientific article published on 02 December 2014

Transient Global Amnesia Deteriorates the Network Efficiency of the Theta Band

scientific article

What is the optimal anodal electrode position for inducing corticomotor excitability changes in transcranial direct current stimulation?

scientific article published on 3 November 2014

fMRI-constrained MEG source imaging and consideration of fMRI invisible sources

scientific article published in October 2005

fNIRS Evidence for Recognizably Different Positive Emotions

article

Paulina is supported by:

About Paulina

Help