Search Results - "Song, Allen W"

A robust multi-shot scan strategy for high-resolution diffusion weighted MRI enabled by multiplexed sensitivity-encoding (MUSE) by Chen, Nan-kuei, Guidon, Arnaud, Chang, Hing-Chiu, Song, Allen W.

“…Diffusion weighted magnetic resonance imaging (DWI) data have been mostly acquired with single-shot echo-planar imaging (EPI) to minimize motion induced…”
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Cerebral White Matter Integrity and Cognitive Aging: Contributions from Diffusion Tensor Imaging by Madden, David J., Bennett, Ilana J., Song, Allen W.

“…The integrity of cerebral white matter is critical for efficient cognitive functioning, but little is known regarding the role of white matter integrity in…”
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High-resolution multi-shot diffusion imaging of structural networks in healthy neurocognitive aging by Merenstein, Jenna L., Zhao, Jiayi, Mullin, Hollie A., Rudolph, Marc D., Song, Allen W., Madden, David J.

“…•Across age, moderate-to-strong correlations between standard and high-resolution DWI.•Higher gray matter FA/MD in high-resolution DWI, and stronger age…”
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Differential developmental trajectories of magnetic susceptibility in human brain gray and white matter over the lifespan by Li, Wei, Wu, Bing, Batrachenko, Anastasia, Bancroft-Wu, Vivian, Morey, Rajendra A., Shashi, Vandana, Langkammer, Christian, De Bellis, Michael D., Ropele, Stefan, Song, Allen W., Liu, Chunlei

“…ABSTRACT As indicated by several recent studies, magnetic susceptibility of the brain is influenced mainly by myelin in the white matter and by iron deposits…”
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Distinct Value Signals in Anterior and Posterior Ventromedial Prefrontal Cortex by Smith, David V, Hayden, Benjamin Y, Truong, Trong-Kha, Song, Allen W, Platt, Michael L, Huettel, Scott A

“…The core feature of an economic exchange is a decision to trade one good for another, based on a comparison of relative value. Economists have long recognized,…”
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Column-based cortical depth analysis of the diffusion anisotropy and radiality in submillimeter whole-brain diffusion tensor imaging of the human cortical gray matter in vivo by Ma, Yixin, Bruce, Iain P., Yeh, Chun-Hung, Petrella, Jeffrey R., Song, Allen W., Truong, Trong-Kha

“…•Fractional anisotropy (FA) and radiality index (RI) sampled along cortical columns.•FA local max/min and RI max at intermediate cortical depths in most…”
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Numerical simulations of an integrated radio-frequency/wireless coil design for simultaneous acquisition and wireless transfer of magnetic resonance imaging data by Overson, Devon K, Bresticker, Julia, Willey, Devin, Robb, Fraser, Song, Allen W, Truong, Trong-Kha, Darnell, Dean

“…A novel magnetic resonance imaging (MRI) radio-frequency (RF) coil design, termed an integrated RF/wireless (iRFW) coil design, can simultaneously perform MRI…”
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Decisions under Uncertainty: Probabilistic Context Influences Activation of Prefrontal and Parietal Cortices by Huettel, Scott A, Song, Allen W, McCarthy, Gregory

“…Many decisions are made under uncertainty; that is, with limited information about their potential consequences. Previous neuroimaging studies of decision…”
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Toward direct MRI of neuro‐electro‐magnetic oscillations in the human brain by Truong, Trong‐Kha, Roberts, Kenneth C., Woldorff, Marty G., Song, Allen W.

“…Purpose Neuroimaging techniques are widely used to investigate the function of the human brain, but none are currently able to accurately localize neuronal…”
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Cortical depth dependence of the diffusion anisotropy in the human cortical gray matter in vivo by Truong, Trong-Kha, Guidon, Arnaud, Song, Allen W

“…Diffusion tensor imaging (DTI) is typically used to study white matter fiber pathways, but may also be valuable to assess the microstructure of cortical gray…”
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Preschool anxiety disorders predict different patterns of amygdala-prefrontal connectivity at school-age by Carpenter, Kimberly L H, Angold, Adrian, Chen, Nan-Kuei, Copeland, William E, Gaur, Pooja, Pelphrey, Kevin, Song, Allen W, Egger, Helen L

“…In this prospective, longitudinal study of young children, we examined whether a history of preschool generalized anxiety, separation anxiety, and/or social…”
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Experience-Dependent Changes in Cerebellar Contributions to Motor Sequence Learning by Doyon, Julien, Song, Allen W., Karni, Avi, Lalonde, François, Adams, Michelle M., Ungerleider, Leslie G.

“…Studies in experimental animals and humans have stressed the role of the cerebellum in motor skill learning. Yet, the relative importance of the cerebellar…”
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Brain structural connectivity increases concurrent with functional improvement: evidence from diffusion tensor MRI in children with cerebral palsy during therapy by Englander, Zoë A, Sun, Jessica, Laura Case, Mikati, Mohamad A, Kurtzberg, Joanne, Song, Allen W

“…Cerebral Palsy (CP) refers to a heterogeneous group of permanent but non-progressive movement disorders caused by injury to the developing fetal or infant…”
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Training with brain-machine interfaces, visuo-tactile feedback and assisted locomotion improves sensorimotor, visceral, and psychological signs in chronic paraplegic patients by Shokur, Solaiman, Donati, Ana R C, Campos, Debora S F, Gitti, Claudia, Bao, Guillaume, Fischer, Dora, Almeida, Sabrina, Braga, Vania A S, Augusto, Patricia, Petty, Chris, Alho, Eduardo J L, Lebedev, Mikhail, Song, Allen W, Nicolelis, Miguel A L

“…Spinal cord injury (SCI) induces severe deficiencies in sensory-motor and autonomic functions and has a significant negative impact on patients' quality of…”
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Improved delineation of short cortical association fibers and gray/white matter boundary using whole-brain three-dimensional diffusion tensor imaging at submillimeter spatial resolution by Song, Allen W, Chang, Hing-Chiu, Petty, Christopher, Guidon, Arnaud, Chen, Nan-Kuei

“…Recent emergence of human connectome imaging has led to a high demand on angular and spatial resolutions for diffusion magnetic resonance imaging (MRI). While…”
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Measurement of spontaneous signal fluctuations in fMRI: adult age differences in intrinsic functional connectivity by Chen, Nan-kuei, Chou, Ying-hui, Song, Allen W., Madden, David J.

“…Functional connectivity (FC) reflects the coherence of spontaneous, low-frequency fluctuations in functional magnetic resonance imaging (fMRI) data. We report…”
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Amygdala Activation to Sad Pictures During High-Field (4 Tesla) Functional Magnetic Resonance Imaging by Wang, Lihong, McCarthy, Gregory, Song, Allen W, LaBar, Kevin S

“…Fear-related processing in the amygdala has been well documented, but its role in signaling other emotions remains controversial. The authors recovered signal…”
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Functional parcellation of attentional control regions of the brain by Woldorff, Marty G, Hazlett, Chad J, Fichtenholtz, Harlan M, Weissman, Daniel H, Dale, Anders M, Song, Allen W

“…Recently, a number of investigators have examined the neural loci of psychological processes enabling the control of visual spatial attention using…”
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Cortical depth dependence and implications on the neuronal specificity of the functional apparent diffusion coefficient contrast by Truong, Trong-Kha, Song, Allen W.

“…Although the blood oxygenation level-dependent (BOLD) contrast is widely used in functional MRI (fMRI), its spatial specificity is compromised by the diversity…”
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Effects of repetitive transcranial magnetic stimulation on motor symptoms in Parkinson disease: a systematic review and meta-analysis by Chou, Ying-hui, Hickey, Patrick T, Sundman, Mark, Song, Allen W, Chen, Nan-kuei

“…Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive neuromodulation technique that has been closely examined as a possible treatment for…”
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