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Baxter P. Rogers
Vanderbilt University
103Publications
26H-index
3,110Citations
Publications 107
Newest
#1Kurt G. Schilling (VUMC: Vanderbilt University Medical Center)
#2Kurt G. Schilling (Vandy: Vanderbilt University)H-Index: 8
Last.Bennett A. Landman (Vandy: Vanderbilt University)H-Index: 32
view all 14 authors...
Diffusion magnetic resonance images may suffer from geometric distortions due to susceptibility induced off resonance fields, which cause geometric mismatch with anatomical images and ultimately affect subsequent quantification of microstructural or connectivity indices. State-of-the art diffusion distortion correction methods typically require data acquired with reverse phase encoding directions, resulting in varying magnitudes and orientations of distortion, which allow estimation of an undist...
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#2Baxter P. RogersH-Index: 26
Last.Neil D. WoodwardH-Index: 27
view all 5 authors...
The insula is structurally abnormal in schizophrenia, demonstrating robust reductions in gray matter volume, cortical thickness, and altered gyrification during prodromal, early and chronic stages of the illness. Despite compelling structural alterations, less is known about its functional connectivity, limited by studies considering the insula as a whole or only within the context of resting-state networks. There is evidence, however, from healthy subjects that the insula is comprised of sub-re...
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#1Anna S. Huang (VUMC: Vanderbilt University Medical Center)H-Index: 1
#2Baxter P. Rogers (Vandy: Vanderbilt University)H-Index: 26
Last.Neil D. Woodward (VUMC: Vanderbilt University Medical Center)H-Index: 27
view all 6 authors...
Working memory (WM) is impaired in psychotic disorders and linked to functional outcome. Most neurobiological models emphasize prefrontal cortex (PFC) dysfunction in the etiology of WM impairment. However, WM is composed of multiple processes, including encoding and maintenance, and the delineation of the neurobiology of these sub-processes has not been well characterized in schizophrenia and psychotic bipolar disorder. Functional MRI was obtained during an event-related spatial delayed match-to...
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#1John C. GoreH-Index: 110
#2Muwei Li (Vandy: Vanderbilt University)H-Index: 2
Last.Zhaohua Ding (Vandy: Vanderbilt University)H-Index: 32
view all 12 authors...
Abstract Functional MRI (fMRI) signals are robustly detectable in white matter (WM) but they have been largely ignored in the fMRI literature. Their nature, interpretation, and relevance as potential indicators of brain function remain under explored and even controversial. Blood oxygenation level dependent (BOLD) contrast has for over 25 years been exploited for detecting localized neural activity in the cortex using fMRI. While BOLD signals have been reliably detected in grey matter (GM) in a ...
2 CitationsSource
#1Anna S. Huang (VUMC: Vanderbilt University Medical Center)H-Index: 1
#2Baxter P. Rogers (Vandy: Vanderbilt University)H-Index: 26
Last.Neil D. Woodward (VUMC: Vanderbilt University Medical Center)H-Index: 27
view all 6 authors...
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#1Vishwesh Nath (Vandy: Vanderbilt University)H-Index: 4
#2Prasanna Parvathaneni (Vandy: Vanderbilt University)H-Index: 5
Last.Bennett A. Landman (Vandy: Vanderbilt University)H-Index: 32
view all 18 authors...
Diffusion-weighted magnetic resonance imaging (DW-MRI) allows for non-invasive imaging of the local fiber architecture of the human brain at a millimetric scale. Multiple classical approaches have been proposed to detect both single (e.g., tensors) and multiple (e.g., constrained spherical deconvolution, CSD) fiber population orientations per voxel. However, existing techniques generally exhibit low reproducibility across MRI scanners. Herein, we propose a data-driven technique using a neural ne...
4 CitationsSource
#1Sarah E. Goodale (Vandy: Vanderbilt University)H-Index: 1
#2Hernán F J González (Vandy: Vanderbilt University)H-Index: 1
Last.Dario J. Englot (Vandy: Vanderbilt University)H-Index: 30
view all 11 authors...
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#1Prasanna Parvathaneni (Vandy: Vanderbilt University)H-Index: 5
#2Ilwoo Lyu (Vandy: Vanderbilt University)H-Index: 5
Last.Bennett A. LandmanH-Index: 32
view all 11 authors...
Abstract Neuroimaging often involves acquiring high-resolution anatomical images along with other low-resolution image modalities, like diffusion and functional magnetic resonance imaging. Performing gray matter statistics with low-resolution image modalities is a challenge due to registration artifacts and partial volume effects. Gray matter surface based spatial statistics (GS-BSS) has been shown to provide higher sensitivity using gray matter surfaces compared to that of skeletonization appro...
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#1Anna S. Huang (VUMC: Vanderbilt University Medical Center)H-Index: 1
#2Baxter P. Rogers (Vandy: Vanderbilt University)H-Index: 26
Last.Neil D. Woodward (VUMC: Vanderbilt University Medical Center)H-Index: 27
view all 3 authors...
Abstract Despite considerable evidence showing thalamus anatomy and connectivity abnormalities in schizophrenia, how these abnormalities are reflected in thalamus function during cognition is relatively understudied. Modulation of thalamic connectivity with the prefrontal cortex (PFC) is required for higher-order cognitive processes, which are often impaired in schizophrenia. To address this gap, we investigated how thalamus function and thalamus-PFC connectivity under different levels of cognit...
1 CitationsSource
#1Julia M. Sheffield (Vandy: Vanderbilt University)H-Index: 9
#2Baxter P. Rogers (Vandy: Vanderbilt University)H-Index: 26
Last.Neil D. Woodward (Vandy: Vanderbilt University)H-Index: 27
view all 5 authors...
Abstract Background Across networks, connectivity within the frontoparietal network (FPN) and cingulo-opercular network (CON) exhibits reductions earliest during healthy aging, contributing to cognitive impairment. Individuals with psychotic disorders demonstrate evidence of accelerated aging across multiple biological systems. By leveraging a large sample of patients with psychosis from early to chronic illness stages, this study sought to determine whether the CON and FPN exhibit evidence of a...
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