Results 121 to 130 of about 59,362 (311)

P1‐361: Resting‐state fMRI activity profile in prodromal Alzheimer's disease and older adults with cognitive complaints [PDF]

, 2011
Yang Wang, John West, Tamiko Magee, Brenna C. McDonald, Shannon L. Risacher, Martin Farlow, Darren P. O’Neill, Andrew J. Saykin   +7 more
openalex   +1 more source

Foot‐Tapping fMRI‐Guided rTMS Enhances Motor and Cognitive Functions in Parkinson's Disease: A Three‐Year Follow‐Up

Movement Disorders Clinical Practice, EarlyView.
Zhiyi Hong, Hongxiao Wang, Jiayi Liu, Wanting Gu, Weiqi Lin, Yu‐Feng Zang, Zi‐Jian Feng, Danning Lou   +7 more
wiley   +1 more source

Block‐interleaved segmented echo‐planar imaging for improved activity detection in submillimeter high‐resolution functional MRI at 7 T

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose Isotropic submillimeter high‐resolution functional MRI (fMRI) facilitates noninvasive investigation of neuronal activities at the mesoscale level, including cortical columns and laminae. However, the task‐evoked functional activity becomes less detectable when using single‐shot echo planar imaging (EPI) with parallel imaging techniques
Guoxiang Liu, Takashi Ueguchi, Seiji Ogawa   +2 more
wiley   +1 more source

Decreased interhemispheric coordination in schizophrenia: A resting state fMRI study [PDF]

, 2012
Matthew J. Hoptman, Xi‐Nian Zuo, Debra D’Angelo, Cristina J. Mauro, Pamela D. Butler, Michael P. Milham, Daniel C. Javitt   +6 more
openalex   +1 more source

Editorial: Origins of the Resting-State fMRI Signal [PDF]

Frontiers in Neuroscience, 2020
J. Jean Chen, J. Jean Chen, Peter Herman, Shella Keilholz, Garth J. Thompson   +4 more
openaire   +4 more sources

A data‐driven algorithm to determine 1H‐MRS basis set composition

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose Metabolite amplitude estimates derived from linear combination modeling of MR spectra depend on the precise list of constituent metabolite basis functions used (the “basis set”). The absence of clear consensus on the “ideal” composition or objective criteria to determine the suitability of a particular basis set contributes to the poor
Christopher W. Davies‐Jenkins, Helge J. Zöllner, Dunja Simicic, Seyma Alcicek, Richard A. E. Edden, Georg Oeltzschner   +5 more
wiley   +1 more source

A parcellation scheme based on von Mises-Fisher distributions and Markov random fields for segmenting brain regions using resting-state fMRI [PDF]

, 2012
Srikanth Ryali, Tianwen Chen, Kaustubh Supekar, Vinod Menon   +3 more
openalex   +1 more source

Outlook on zero/ultrashort echo time techniques in functional MRI

Magnetic Resonance in Medicine, EarlyView.
Abstract Since its introduction more than 30 years ago, the blood oxygenation level dependent (BOLD) contrast remains the most widely used method for functional MRI (fMRI) in humans and animal models. The BOLD contrast is typically acquired with echo planar imaging (EPI) to obtain sensitization of the signal during the echo time (TE) to dynamic changes
Silvia Mangia, Shalom Michaeli, Olli Gröhn   +2 more
wiley   +1 more source

Transcranial Doppler ultrasound validation of BOLD‐fMRI cerebral blood flow relationship

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose A precise understanding of the interplay between cerebral blood flow (CBF) and blood oxygen level‐dependent (BOLD) fMRI signals is essential for advancing cerebrovascular research. Although calibrated BOLD approaches often rely on arterial spin labelling (ASL) to estimate CBF, alternative validation using transcranial Doppler ...
Genevieve Hayes, Joana Pinto, Sierra Sparks, Daniel P. Bulte   +3 more
wiley   +1 more source

L-DOPA changes spontaneous low-frequency BOLD signal oscillations in Parkinson's disease: a resting state fMRI study [PDF]

, 2012
Youngbin Kwak, Scott Peltier, Nicolaas I. Bohnen, Martijn L.T.M. Müller, Praveen Dayalu, Rachael D. Seidler   +5 more
openalex   +1 more source