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Neuroanatomical Predictors of Dysphagia after Stroke: Voxel-Based Lesion Symptom Mapping Study

Pyun SB, Yoo HJ, Jung Y, Tae WS

OBJECTIVE: Dysphagia is a common consequence of stroke with a negative effect on the clinical outcome. Given these potential outcomes, it is important to identify the precursors to dysphagia after...
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Basics of Electroencephalography for Neuropsychiatrist

Eun HJ

In 1924, Hans Berger, a German psychiatrist, recorded the brain waves from a human brain for the first time. Many advances have been made in this field since then. Currently,...
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Seed-Based Resting-State Functional MRI for Presurgical Localization of the Motor Cortex: A Task-Based Functional MRI-Determined Seed Versus an Anatomy-Determined Seed

Lee JY, Choi Y, Ahn KJ, Nam Y, Jang JH, Choi HS, Jung SL, Kim BS

OBJECTIVE: For localization of the motor cortex, seed-based resting-state functional MRI (rsfMRI) uses the contralateral motor cortex as a seed. However, research has shown that the location of the motor...
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Understanding Neurogastroenterology From Neuroimaging Perspective: A Comprehensive Review of Functional and Structural Brain Imaging in Functional Gastrointestinal Disorders

Kano M, Dupont P, Aziz Q, Fukudo S

  • KMID: 2422842
  • J Neurogastroenterol Motil.
  • 2018 Oct;24(4):512-527.
  • doi: 10.5056/jnm18072
This review provides a comprehensive overview of brain imaging studies of the brain-gut interaction in functional gastrointestinal disorders (FGIDs). Functional neuroimaging studies during gut stimulation have shown enhanced brain responses...
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Magnetic Resonance Image Texture Analysis of the Periaqueductal Gray Matter in Episodic Migraine Patients without T2-Visible Lesions

Chen Z, Chen X, Liu M, Liu S, Yu S, Ma L

OBJECTIVE: The periaqueductal gray matter (PAG), a small midbrain structure, presents dysfunction in migraine. However, the precise neurological mechanism is still not well understood. Herein, the aim of this study...
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Altered Functional Connectivity of the Default Mode Network in Low-Empathy Subjects

Kim SJ, Kim SE, Kim HE, Han K, Jeong B, Kim JJ, Namkoong K, Kim JW

Empathy is the ability to identify with or make a vicariously experience of another person's feelings or thoughts based on memory and/or self-referential mental simulation. The default mode network in...
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Longitudinal Intrinsic Brain Activity Changes in Cirrhotic Patients before and One Month after Liver Transplantation

Cheng Y, Huang LX, Zhang L, Ma M, Xie SS, Ji Q, Zhang XD, Zhang GY, Zhang XN, Ni HY, Shen W

OBJECTIVE: To evaluate the spontaneous brain activity alterations in liver transplantation (LT) recipients using resting-state functional MRI. MATERIALS AND METHODS: Twenty cirrhotic patients as transplant candidates and 25 healthy controls (HCs)...
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Differentiation of the Infarct Core from Ischemic Penumbra within the First 4.5 Hours, Using Diffusion Tensor Imaging-Derived Metrics: A Rat Model

Kuo DP, Lu CF, Liou M, Chen YC, Chung HW, Chen CY

OBJECTIVE: To investigate whether the diffusion tensor imaging-derived metrics are capable of differentiating the ischemic penumbra (IP) from the infarct core (IC), and determining stroke onset within the first 4.5...
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Differences in Regional Glucose Metabolism of the Brain Measured with F-18-FDG-PET in Patients with Essential Tremor According to Their Response to Beta-Blockers

Song IU, Ha SW, Yang YS, Chung YA

OBJECTIVE: In this study, there was an investigation as to whether there is a functional difference in essential tremor (ET), according to responses to beta-blockers, by evaluating regional changes in...
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Advances in Functional Connectomics in Neuroscience : A Focus on Post-Traumatic Stress Disorder

Park S, Jeong HS, Lyoo IK

Recent breakthroughs in functional neuroimaging techniques have launched the quest of mapping the connections of the human brain, otherwise known as the human connectome. Imaging connectomics is an umbrella term...
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Abnormal Brain Activity in Social Reward Learning in Children with Autism Spectrum Disorder: An fMRI Study

Choi US, Kim SY, Sim HJ, Lee SY, Park SY, Jeong JS, Seol KI, Yoon HW, Jhung K, Park JI, Cheon KA

PURPOSE: We aimed to determine whether Autism Spectrum Disorder (ASD) would show neural abnormality of the social reward system using functional MRI (fMRI). MATERIALS AND METHODS: 27 ASDs and 12 typically...
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Functional Magnetic Resonance Imaging of Motor Cortex Activation in Schizophrenia

Lee HJ, Preda A, Ford JM, Mathalon D, Keator DB, van Erp TG, Turner JA, Potkin SG

Previous fMRI studies of sensorimotor activation in schizophrenia have found in some cases hypoactivity, no difference, or hyperactivity when comparing patients with controls; similar disagreement exists in studies of motor...
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Functional Neuroimaging of Tinnitus: State-of-the-Art

Song JJ

Non-pulsatile subjective tinnitus is a phantom sound percept without any objective physical sound source. Recent advances in tinnitus research have suggested central rather than peripheral changes as the culprit of...
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Neural Substrates of Hanja (Logogram) and Hangul (Phonogram) Character Readings by Functional Magnetic Resonance Imaging

Cho ZH, Kim N, Bae S, Chi JG, Park CW, Ogawa S, Kim YB

The two basic scripts of the Korean writing system, Hanja (the logography of the traditional Korean character) and Hangul (the more newer Korean alphabet), have been used together since the...
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Neural Changes Associated with Emotion Processing in Children Experiencing Peer Rejection: A Functional MRI Study

Lee HS, Lee JE, Lee KU, Kim YH

This study was performed to investigate differences between children who did and did not experience peer rejection in psychological state through surveys and in emotion processing during an interpersonal stress...
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Analysis on Bilateral Hindlimb Mapping in Motor Cortex of the Rat by an Intracortical Microstimulation Method

Seong HY, Cho JY, Choi BS, Min JK, Kim YH, Roh SW, Kim JH, Jeon SR

Intracortical microstimulation (ICMS) is a technique that was developed to derive movement representation of the motor cortex. Although rats are now commonly used in motor mapping studies, the precise characteristics...
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Neural Substrate Responsible for Crossed Aphasia

Kim WJ, Yang EJ, Paik NJ

Crossed aphasia (CA) refers to language impairment secondary to right hemisphere lesion. Imaging analysis on the lesion location of CA has not yet been reported in the literature. This study...
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Anterior Commissure - Posterior Commissure Revisited

Choi SH, Chi JG, Kim YB, Cho ZH

OBJECTIVE: The anterior commissure (AC) and posterior commissure (PC) are the two distinct anatomic structures in the brain which are difficult to observe in detail with conventional MRI, such as...
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Localization Value of Magnetoencephalography Interictal Spikes in Adult Nonlesional Neocortical Epilepsy

Jeong W, Chung CK, Kim JS

Few studies have included magnetoencephalography (MEG) when assessing the diagnostic value of presurgical modalities in a nonlesional epilepsy population. Here, we compare single photon emission computed tomography (SPECT), positron emission...
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Influence of Signal Intensity Non-Uniformity on Brain Volumetry Using an Atlas-Based Method

Goto M, Abe O, Miyati T, Kabasawa H, Takao H, Hayashi N, Kurosu T, Iwatsubo T, Yamashita , Matsuda H, Mori H, Kunimatsu , Aoki S, Ino K, Yano K, Ohtomo K, Japanese Alzheimer's Disease Neuroimaging Initiative

OBJECTIVE: Many studies have reported pre-processing effects for brain volumetry; however, no study has investigated whether non-parametric non-uniform intensity normalization (N3) correction processing results in reduced system dependency when using...
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