The impact of smartphone use on working memory in college students: a functional near-infrared spectroscopy study.
Research
RF Safe Research Library
Jan 1, 2025
This study compared 42 college students grouped by high versus low screen time during a 2-back working memory task while measuring brain activity with fNIRS. The low screen time group performed better on working memory accuracy/hit rate, while reaction time and false alarms did not differ. Neuroimaging results…
Structural and Functional Neural Correlates in Individuals with Excessive Smartphone Use: A Systematic Review and Meta-Analysis
Research
RF Safe Research Library
Dec 5, 2022
This systematic review and meta-analysis synthesized observational MRI studies comparing excessive smartphone users with regular users. It reports smaller brain volumes in excessive smartphone users, especially in subcortical regions, and notes that the association was more pronounced in adolescents than adults. It…
Structural and functional correlates of smartphone addiction
Research
RF Safe Research Library
Jan 1, 2020
This cross-sectional MRI study compared individuals meeting psychometric criteria for smartphone addiction (n=22) with controls (n=26). It reports lower gray matter volume in several regions (including left anterior insula and parahippocampal cortex) and lower intrinsic activity in the right anterior cingulate cortex…
The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.
Research
RF Safe Research Library
Jan 1, 2014
This double-blind, randomized, crossover study examined whether 30 minutes of near-field LTE radiofrequency exposure near the right ear alters resting-state brain activity measured by fMRI. The authors report decreased ALFF in multiple temporal and frontal/paracentral regions after real exposure compared with sham,…
Measurement of creatine kinase reaction rate in human brain using magnetization transfer image-selected in vivo spectroscopy (MT-ISIS) and a volume ³¹P/¹H radiofrequency coil in a clinical 3-T MRI system.
Research
RF Safe Research Library
Jan 1, 2011
This paper describes a new magnetization transfer 31P MRS approach (MT-ISIS) for measuring the creatine kinase forward reaction rate in the human brain using a volume 31P/1H RF coil on a clinical 3-T MRI system. The method aims to reduce acquisition time (30 min), avoid scalp muscle contamination, improve RF…
Transient and steady-state magnetic fields induce increased fluorodeoxyglucose uptake in the rat hindbrain.
Research
RF Safe Research Library
Jan 1, 2011
This animal PET study examined whether a weak 60-Hz magnetic field alters brain glucose utilization in rats. The abstract reports increased FDG uptake in hindbrain voxels when a 2.5-G field was oriented orthogonally to the sagittal plane, but not when field direction varied randomly. Distinct activation effects were…