D. Rangaprakash
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View article: Effects of seasonal factors on brain function: Systematic review and future perspectives
Effects of seasonal factors on brain function: Systematic review and future perspectives Open
View article: VAE deep learning model with domain adaptation, transfer learning and harmonization for diagnostic classification from multi-site neuroimaging data
VAE deep learning model with domain adaptation, transfer learning and harmonization for diagnostic classification from multi-site neuroimaging data Open
In large public multi-site fMRI datasets, the sample characteristics, data acquisition methods, and MRI scanner models vary across sites and datasets. This non-neural variability obscures neural differences between groups and leads to poor…
View article: Human Brain and Mysticism
Human Brain and Mysticism Open
Mysticism has been an integral part of human society for ages. It involves both spirituality and religiosity. The former is associated with attaining higher states of consciousness without an essential belief in a supernatural power (or Go…
View article: Non-Invasive Electrophysiological Characterization of Distinctive Meditative States in a Yogi During Samaadhi
Non-Invasive Electrophysiological Characterization of Distinctive Meditative States in a Yogi During Samaadhi Open
Although mechanistic studies on Yoga and meditation have demonstrated their efficacy over the past few decades, very few studies have focused on the Yogic state of Samaadhi, characterized by an ultimate state of peace and happiness. In thi…
View article: Effects of noninvasive neuromodulation combined with rapid, short-duration self-image stimuli in body dysmorphic disorder
Effects of noninvasive neuromodulation combined with rapid, short-duration self-image stimuli in body dysmorphic disorder Open
View article: Practical scan-length considerations for mapping upper limb movements to the somatosensory/motor cortex at 7T: A pilot study
Practical scan-length considerations for mapping upper limb movements to the somatosensory/motor cortex at 7T: A pilot study Open
The relationship between motor cortex (M1) and upper limb movements has been investigated extensively using functional MRI (fMRI). While most research has focused on applications, very few studies have focused on practical aspects of devel…
View article: Resting state neurophysiology of agonist–antagonist myoneural interface in persons with transtibial amputation
Resting state neurophysiology of agonist–antagonist myoneural interface in persons with transtibial amputation Open
View article: The Use of Generative Adversarial Network and Graph Convolution Network for Neuroimaging-Based Diagnostic Classification
The Use of Generative Adversarial Network and Graph Convolution Network for Neuroimaging-Based Diagnostic Classification Open
Functional connectivity (FC) obtained from resting-state functional magnetic resonance imaging has been integrated with machine learning algorithms to deliver consistent and reliable brain disease classification outcomes. However, in class…
View article: The confound of hemodynamic response function variability in human resting-state functional MRI studies
The confound of hemodynamic response function variability in human resting-state functional MRI studies Open
Functional magnetic resonance imaging (fMRI) is an indirect measure of neural activity with the hemodynamic response function (HRF) coupling it with unmeasured neural activity. The HRF, modulated by several non-neural factors, is variable …
View article: An 8‐channel Tx dipole and 20‐channel Rx loop coil array for MRI of the cervical spinal cord at 7 Tesla
An 8‐channel Tx dipole and 20‐channel Rx loop coil array for MRI of the cervical spinal cord at 7 Tesla Open
The quality of cervical spinal cord images can be improved by the use of tailored radiofrequency (RF) coil solutions for ultrahigh field imaging; however, very few commercial and research 7‐T RF coils currently exist for the spinal cord, a…
View article: Comparison of hemodynamic response functions obtained from resting-state functional MRI and invasive electrophysiological recordings in rats
Comparison of hemodynamic response functions obtained from resting-state functional MRI and invasive electrophysiological recordings in rats Open
Resting-state functional MRI (rs-fMRI) is a popular technology that has enriched our understanding of brain and spinal cord functioning, including how different regions communicate (connectivity). But fMRI is an indirect measure of neural …
View article: 8-channel Tx dipole and 20-channel Rx loop coil array for MRI of the cervical spinal cord at 7 Tesla
8-channel Tx dipole and 20-channel Rx loop coil array for MRI of the cervical spinal cord at 7 Tesla Open
The quality of cervical spinal cord images can be improved by the use of tailored radiofrequency coil solutions for ultra-high field imaging; however, very few commercial and research 7 Tesla radiofrequency coils currently exist for the sp…
View article: Resting state neurophysiology of agonist-antagonist myoneural interface in persons with transtibial amputation
Resting state neurophysiology of agonist-antagonist myoneural interface in persons with transtibial amputation Open
The agonist-antagonist myoneural interface (AMI) is a novel amputation surgery that preserves sensorimotor signaling mechanisms of the central-peripheral nervous systems. Our first neuroimaging study investigating AMI subjects (Srinivasan …
View article: Relationship between neurochemical concentrations and neurofunctional measures in late-onset GM2 gangliosidosis
Relationship between neurochemical concentrations and neurofunctional measures in late-onset GM2 gangliosidosis Open
Magnetic resonance spectroscopy (MRS) and functional MRI (fMRI), related through common biophysical bases, provide complementary information about brain function. The link between MRS and fMRI measures is of interest, especially in the ult…
View article: The landscape of functional brain network impairments in late-onset GM2 gangliosidosis
The landscape of functional brain network impairments in late-onset GM2 gangliosidosis Open
Late-onset GM2 gangliosidosis (LOGG) is an ultra-rare neurological disease with motor, cognitive and psychiatric manifestations. It is caused by mutations in the HEXA or HEXB genes. Although cerebellar structural and metabolic impairments …
View article: Neural and behavioral effects of modification of visual attention in body dysmorphic disorder
Neural and behavioral effects of modification of visual attention in body dysmorphic disorder Open
View article: Dynamic Effective Connectivity Patterns During Rapid Face Stimuli Presentation in Body Dysmorphic Disorder
Dynamic Effective Connectivity Patterns During Rapid Face Stimuli Presentation in Body Dysmorphic Disorder Open
In individuals with body dysmorphic disorder (BDD), perceptual appearance distortions may be related to imbalances in global vs. local visual processing. Understanding the mechanistic brain effects of potential interventions is crucial for…
View article: Characterization of Hemodynamic Alterations in Schizophrenia and Bipolar Disorder and Their Effect on Resting-State fMRI Functional Connectivity
Characterization of Hemodynamic Alterations in Schizophrenia and Bipolar Disorder and Their Effect on Resting-State fMRI Functional Connectivity Open
Common and distinct neural bases of Schizophrenia (SZ) and bipolar disorder (BP) have been explored using resting-state fMRI (rs-fMRI) functional connectivity (FC). However, fMRI is an indirect measure of neural activity, which is a convol…
View article: Can excitatory neuromodulation change distorted perception of one's appearance?
Can excitatory neuromodulation change distorted perception of one's appearance? Open
View article: Mapping upper limb movements to the somatosensory/motor cortex at 7T: associated data outputs
Mapping upper limb movements to the somatosensory/motor cortex at 7T: associated data outputs Open
This dataset provides supporting data for our pilot study on practical scan-length considerations for mapping upper limb movements to the somatosensory/motor cortex at 7T, conducted at the Athinoula A. Martinos Center for Biomedical Imagin…
View article: Magnetic resonance imaging and spectroscopy in late-onset GM2-gangliosidosis
Magnetic resonance imaging and spectroscopy in late-onset GM2-gangliosidosis Open
View article: Functional Connectivity-Based Prediction of Autism on Site Harmonized ABIDE Dataset
Functional Connectivity-Based Prediction of Autism on Site Harmonized ABIDE Dataset Open
ComBat has the potential to make AI-based clinical decision-support systems more feasible in psychiatry.
View article: Effects of visual attention modulation on dynamic effective connectivity and visual fixation during own-face viewing in body dysmorphic disorder
Effects of visual attention modulation on dynamic effective connectivity and visual fixation during own-face viewing in body dysmorphic disorder Open
Background In individuals with body dysmorphic disorder (BDD), selective attention biases and aberrant visual scanning patterns may cause imbalances in global vs. detailed visual processing, contributing to perceptual distortions for appea…
View article: Ultra-high field (7T) functional magnetic resonance imaging in amyotrophic lateral sclerosis: a pilot study
Ultra-high field (7T) functional magnetic resonance imaging in amyotrophic lateral sclerosis: a pilot study Open
View article: Ultra-high field (7T) functional magnetic resonance imaging in amyotrophic lateral sclerosis: a pilot study
Ultra-high field (7T) functional magnetic resonance imaging in amyotrophic lateral sclerosis: a pilot study Open
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease of the central nervous system that results in a progressive loss of motor function and ultimately death. It is critical, yet also challenging, to develop non-invasive bioma…
View article: Density-based clustering of static and dynamic functional MRI connectivity features obtained from subjects with cognitive impairment
Density-based clustering of static and dynamic functional MRI connectivity features obtained from subjects with cognitive impairment Open
Various machine-learning classification techniques have been employed previously to classify brain states in healthy and disease populations using functional magnetic resonance imaging (fMRI). These methods generally use supervised classif…
View article: FMRI hemodynamic response function (HRF) as a novel marker of brain function: applications for understanding obsessive-compulsive disorder pathology and treatment response
FMRI hemodynamic response function (HRF) as a novel marker of brain function: applications for understanding obsessive-compulsive disorder pathology and treatment response Open
View article: Research Trends in the Application of Yoga to Human Health: A Data Science Approach.
Research Trends in the Application of Yoga to Human Health: A Data Science Approach. Open
Yoga is an integrative mind-body system of wellbeing developed in India since at least three millennia. Yoga has gained considerable attention in recent decades, partly driven by recent research and evidence about its effectiveness. In thi…
View article: MALINI (Machine Learning in NeuroImaging): A MATLAB toolbox for aiding clinical diagnostics using resting-state fMRI data
MALINI (Machine Learning in NeuroImaging): A MATLAB toolbox for aiding clinical diagnostics using resting-state fMRI data Open
View article: Deterioration from healthy to mild cognitive impairment and Alzheimer’s disease mirrored in corresponding loss of centrality in directed brain networks
Deterioration from healthy to mild cognitive impairment and Alzheimer’s disease mirrored in corresponding loss of centrality in directed brain networks Open