Interactions between head motion and coil sensitivity in accelerated fMRI

2016 ◽  
Vol 270 ◽  
pp. 46-60 ◽  
Author(s):  
Z. Faraji-Dana ◽  
F. Tam ◽  
J.J. Chen ◽  
S.J. Graham
Keyword(s):  
Head Motion ◽  
Coil Sensitivity

A robust method for suppressing motion-induced coil sensitivity variations during prospective correction of head motion in fMRI

2016 ◽  
Vol 34 (8) ◽  
pp. 1206-1219 ◽  
Author(s):  
Zahra Faraji-Dana ◽  
Fred Tam ◽  
J. Jean Chen ◽  
Simon J. Graham
Keyword(s):  
Head Motion ◽  
Coil Sensitivity ◽  
Robust Method

fMRI Simulator Training to Suppress Head Motion

2016 ◽  
Vol 4 (2) ◽  
pp. 96-103 ◽  
Author(s):  
S. J. Graham ◽  
S. Ranieri ◽  
S. Boe ◽  
J. E. Ween ◽  
F. Tam ◽  
...  
Keyword(s):  
Simulator Training ◽  
Head Motion

A Critical, Event-Related Appraisal of Denoising in Resting-State fMRI Studies

2020 ◽  
Vol 30 (10) ◽  
pp. 5544-5559 ◽  
Author(s):  
Jonathan D Power ◽  
Charles J Lynch ◽  
Babatunde Adeyemo ◽  
Steven E Petersen
Keyword(s):  
Resting State ◽  
Resting State Fmri ◽  
Critical Event ◽  
Head Motion ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Decay Properties ◽  
Signal Decay ◽  
Biological Variables ◽  
Related Approach

Abstract This article advances two parallel lines of argument about resting-state functional magnetic resonance imaging (fMRI) signals, one empirical and one conceptual. The empirical line creates a four-part organization of the text: (1) head motion and respiration commonly cause distinct, major, unwanted influences (artifacts) in fMRI signals; (2) head motion and respiratory changes are, confoundingly, both related to psychological and clinical and biological variables of interest; (3) many fMRI denoising strategies fail to identify and remove one or the other kind of artifact; and (4) unremoved artifact, due to correlations of artifacts with variables of interest, renders studies susceptible to identifying variance of noninterest as variance of interest. Arising from these empirical observations is a conceptual argument: that an event-related approach to task-free scans, targeting common behaviors during scanning, enables fundamental distinctions among the kinds of signals present in the data, information which is vital to understanding the effects of denoising procedures. This event-related perspective permits statements like “Event X is associated with signals A, B, and C, each with particular spatial, temporal, and signal decay properties”. Denoising approaches can then be tailored, via performance in known events, to permit or suppress certain kinds of signals based on their desirability.

scholarly journals Individual Differences in Impulsivity Predict Head Motion during Magnetic Resonance Imaging

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e104989 ◽  
Author(s):  
Xiang-zhen Kong ◽  
Zonglei Zhen ◽  
Xueting Li ◽  
Huan-hua Lu ◽  
Ruosi Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Individual Differences ◽  
Magnetic Resonance ◽  
Head Motion ◽  
Resonance Imaging

Quantifying the psychopathic stare: Automated assessment of head motion is related to antisocial traits in forensic interviews

2021 ◽  
pp. 104093
Author(s):  
Aparna R. Gullapalli ◽  
Nathaniel E. Anderson ◽  
Rohit Yerramsetty ◽  
Carla L. Harenski ◽  
Kent A. Kiehl
Keyword(s):  
Head Motion ◽  
Automated Assessment ◽  
Forensic Interviews

scholarly journals A unified evaluation framework for head motion prediction methods in 360° videos

2020 ◽  
Author(s):  
Miguel Fabián Romero Rondón ◽  
Lucile Sassatelli ◽  
Ramón Aparicio-Pardo ◽  
Frédéric Precioso
Keyword(s):  
Evaluation Framework ◽  
Motion Prediction ◽  
Head Motion ◽  
Prediction Methods

Typological shift in lexicalizing motion events: The case of Wenzhou

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jingxia Lin
Keyword(s):  
The Other ◽  
Head Motion ◽  
Motion Events ◽  
Other Hand ◽  
Chinese Dialect ◽  
Chinese Dialects ◽  
Motion Verb ◽  
The One ◽  
Over Time ◽  
Modern Standard

AbstractTypological shift in lexicalizing motion events has hitherto been observed cross-linguistically. While over time, Chinese has shown a shift from a dominantly verb-framed language in Old Chinese to a strongly satellite-framed language in Modern Standard Mandarin, this study presents the Chinese dialect Wenzhou, which has taken a step further than Standard Mandarin and other Chinese dialects in becoming a thoroughly satellite-framed language. On the one hand, Wenzhou strongly disfavors the verb-framed pattern. Wenzhou not only has no prototypical path verbs, but also its path satellites are highly deverbalized. On the other hand, Wenzhou strongly prefers the satellite-framed pattern, to the extent that it very frequently adopts a neutral motion verb to head motion expressions so that path can be expressed via satellites and the satellite-framed pattern can be syntactically maintained. The findings of this study are of interest to intra-linguistic, diachronic and cross-linguistic studies of the variation in encoding motion events.

scholarly journals Development of a trunk motor paradigm for use in neuroimaging

2020 ◽  
Vol 11 (1) ◽  
pp. 193-200
Author(s):  
Elizabeth Saunders ◽  
Brian C. Clark ◽  
Leatha A. Clark ◽  
Dustin R. Grooms
Keyword(s):  
Motor Control ◽  
Maximum Voluntary Contraction ◽  
Voluntary Contraction ◽  
Erector Spinae ◽  
Head Motion ◽  
Low Back ◽  
Cyclic Contraction ◽  
Cyclic Contractions ◽  
Measurement Units ◽  
Healthy Participants

AbstractThe purpose of this study was to quantify head motion between isometric erector spinae (ES) contraction strategies, paradigms, and intensities in the development of a neuroimaging protocol for the study of neural activity associated with trunk motor control in individuals with low back pain. Ten healthy participants completed two contraction strategies; (1) a supine upper spine (US) press and (2) a supine lower extremity (LE) press. Each contraction strategy was performed at electromyographic (EMG) contraction intensities of 30, 40, 50, and 60% of an individually determined maximum voluntary contraction (MVC) (±10% range for each respective intensity) with real-time, EMG biofeedback. A cyclic contraction paradigm was performed at 30% of MVC with US and LE contraction strategies. Inertial measurement units (IMUs) quantified head motion to determine the viability of each paradigm for neuroimaging. US vs LE hold contractions induced no differences in head motion. Hold contractions elicited significantly less head motion relative to cyclic contractions. Contraction intensity increased head motion in a linear fashion with 30% MVC having the least head motion and 60% the highest. The LE hold contraction strategy, below 50% MVC, was found to be the most viable trunk motor control neuroimaging paradigm.

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