High-frequency oscillations (HFOs, >0.1 Hz) of resting-state fMRI (rs-fMRI) signals have received much attention in recent years. Denoising is critical for HFO studies. Previous work indicated that head motion (HM) has remarkable influences on a variety of rs-fMRI metrics, but its influences on rs-fMRI HFOs are still unknown. In this study, we investigated the impacts of HM regression (HMR) on HFO results using a fast sampling rs-fMRI dataset. We demonstrated that apparent high-frequency (∼0.2-0.4 Hz) components existed in the HM trajectories in almost all subjects. In addition, we found that individual-level HMR could robustly reveal more between-condition (eye-open vs. eye-closed) amplitude differences in high-frequency bands. Although regression of mean framewise displacement (FD) at the group level had little impact on the results, mean FD could significantly account for inter-subject variance of HFOs even after individual-level HMR. Our findings suggest that HM artifacts should not be ignored in HFO studies, and HMR is necessary for detecting HFO between-condition differences.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4881380 | PMC |
| http://dx.doi.org/10.3389/fnhum.2016.00243 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Predicting prosthetic gait and the effects of induced stiff-knee gait.
PLoS One
January 2025
Laboratory for Biomechanics and Biomaterials, Department of Orthopedic Surgery, DIAKOVERE Annastift, Hannover Medical School, Hannover, Germany.
Prosthetic gait differs considerably from the unimpaired gait. Studying alterations in the gait patterns could help to understand different adaptation mechanisms adopted by these populations. This study investigated the effects of induced stiff-knee gait (SKG) on prosthetic and healthy gait patterns and the capabilities of predictive simulation.
View Article and Find Full Text PDFImpaired visual perceptual accuracy in the upper visual field induces asymmetric performance in position estimation for falling and rising objects.
J Vis
January 2025
Department of Cognitive and Psychological Sciences, Graduate School of Informatics, Nagoya University, Aichi, Japan.
Humans can estimate the time and position of a moving object's arrival. However, numerous studies have demonstrated superior position estimation accuracy for descending objects compared with ascending objects. We tested whether the accuracy of position estimation for ascending and descending objects differs between the upper and lower visual fields.
View Article and Find Full Text PDFSurgical Management of Radial Head and Proximal Ulna Fractures Without Elbow Dislocation: A Case Report.
Cureus
December 2024
Orthopedics and Traumatology, Istanbul University-Cerrahpasa, Istanbul, TUR.
Fractures involving the proximal ulna and radial head are common injuries that occur in the upper extremity, often resulting from traumatic incidents such as falls or direct impact. The proximal ulna forms the elbow joint with the humerus, while the radial head articulates with both the humerus and the ulna, facilitating forearm rotation. Fractures in these areas can disrupt the stability and function of the elbow joint, leading to pain, swelling, and limited range of motion.
View Article and Find Full Text PDFToward the Bayesian brain: a generative model of information transmission by vestibular sensory neurons.
Front Neurol
December 2024
Department of Head and Neck Surgery and Brain Research Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States.
The relative accessibility and simplicity of vestibular sensing and vestibular-driven control of head and eye movements has made the vestibular system an attractive subject to experimenters and theoreticians interested in developing realistic quantitative models of how brains gather and interpret sense data and use it to guide behavior. Head stabilization and eye counter-rotation driven by vestibular sensory input in response to rotational perturbations represent natural, ecologically important behaviors that can be reproduced in the laboratory and analyzed using relatively simple mathematical models. Models drawn from dynamical systems and control theory have previously been used to analyze the behavior of vestibular sensory neurons.
View Article and Find Full Text PDFVestibular Implant Surgery: How to Deal With Obstructed Semicircular Canals-A Diagnostic and Surgical Guide.
J Otolaryngol Head Neck Surg
January 2025
Division of Otorhinolaryngology-Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, University of Geneva, Geneva, Switzerland.
Background: A vestibular implant can partially restore vestibular function by providing motion information through implanted electrodes. During vestibular implantation, various obstructions of the semicircular canals, such as protein deposits, fibrosis, and ossification, can be encountered. The objective was to explore the relationship between preoperative imaging and intraoperative findings of semicircular canal obstruction and to develop surgical strategies for dealing with obstructions of the semicircular canal(s) in patients eligible for vestibular implantation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!