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Showing results for: alpha

Electromagnetic field stimulation modulates working memory and cortical alpha oscillations in healthy adults

Research RF Safe Research Library Feb 26, 2026

This randomized, between-subjects study in 98 healthy volunteers tested whether patterned EMF stimulation alters Digit Span performance and EEG activity. Theta-Burst stimulation reduced working memory (Digit Span Backward) and was associated with increased high-alpha activity in frontal regions. Theta-Gamma…

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A.

Research Paper Discussions

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A Christoph Augner 1, Gerhard W Hacker, Gerd Oberfeld, Matthias Florian, Wolfgang Hitzl, Jörg Hutter, Gernot Pauser Affiliations Expand PMID: 20708499 DOI: 10.1016/S0895-3988(10)60053-0 Abstract…

Alpha-Lipoic Acid Preserves Testicular Integrity Under 2.45 GHz Electromagnetic Radiation by Restoring Redox and Inflammatory Balance

Research RF Safe Research Library Jan 1, 2025

This animal study exposed adult male rats to 2.45 GHz electromagnetic radiation for 2 hours/day for one month and assessed testicular outcomes. The abstract reports that EMR exposure induced oxidative stress, increased inflammatory markers, and caused histological testicular injury. Alpha-lipoic acid supplementation…

No Measurable Impact of Acute 26 GHz 5G Exposure on Salivary Stress Markers in Healthy Adults

Research RF Safe Research Library Jan 1, 2025

This triple-blind randomized study tested whether 26.5 minutes of 26 GHz (5G) RF exposure at environmental-like levels alters salivary stress biomarkers in healthy adults. Salivary cortisol and alpha-amylase measured before, during, and after exposure did not differ between real and sham conditions. An exploratory…

Millimeter-wave high frequency 5G (26 GHz) electromagnetic fields do not modulate human brain electrical activity

Research RF Safe Research Library Jan 1, 2025

This randomized, triple-blind crossover study examined whether 26 GHz (5G millimeter-wave) exposure affects human EEG activity. Thirty-one healthy young adults completed real and sham 26.5-minute exposures at 2 V/m, with EEG recorded before, during, and after exposure. The study reports no significant effects of…

The effect of alpha-lipoic acid on liver damage induced by extremely low-frequency electromagnetic fields in a rat model

Research RF Safe Research Library Jan 1, 2025

This rat study assessed whether alpha-lipoic acid (ALA) modifies liver effects from extremely low-frequency magnetic field (ELF-MF) exposure. ELF-MF exposure (2 mT, 4 hours/day for 30 days) was associated with increased liver pathology and higher apoptosis markers (TUNEL, caspase-3) compared with other groups. ALA…

Characterizing the Binding of Angiotensin Converting Enzyme I Inhibitory Peptide to Human Hemoglobin: Influence of Electromagnetic Fields.

Research RF Safe Research Library Jan 1, 2020

This in vitro study used spectroscopic and conductometry methods to examine binding between human hemoglobin and an angiotensin-converting enzyme inhibitory peptide, with and without electromagnetic field (EMF) exposure. The authors report that EMF changed the Hb–ACEIP interaction and that binding was associated with…

Effect of short exposure to radiofrequency electromagnetic fields on saliva biomarkers: a study on the electrohypersensitive individuals.

Research RF Safe Research Library Jan 1, 2019

This double-blind provocation study examined whether short RF-EMF exposure alters salivary biomarkers in electrohypersensitive (EHS) individuals. Ten participants underwent sham and real exposure sessions with consecutive GSM 900, GSM 1800, DECT, and Wi‑Fi signals for 5 minutes each. The study reports no significant…

After-effect induced by microwave radiation in human electroencephalographic signal: a feasibility study.

Research RF Safe Research Library Jan 1, 2018

This feasibility study tested whether microwave radiation (450 MHz, 40 Hz modulation; 1 g peak spatial average SAR 0.3 W/kg) can induce detectable event-related potentials in EEG. In one subject across four sessions, EEG responses time-locked to exposure offset showed increased alpha-band signal and about a twofold…

Long-Term Evolution Electromagnetic Fields Exposure Modulates the Resting State EEG on Alpha and Beta Bands.

Research RF Safe Research Library Jan 1, 2017

This study evaluated whether exposure to EMF from an LTE system (described as equivalent to maximum LTE mobile phone emission) alters resting-state EEG. The abstract reports reduced spectral power and reduced interhemispheric coherence in alpha and beta bands in frontal and temporal regions. It also reports no…

Effect of long-term exposure to mobile phone radiation on alpha-Int1 gene sequence of Candida albicans.

Research RF Safe Research Library Jan 1, 2016

This in vitro study evaluated whether long-term 900 MHz radiation exposure induces mutations in the alpha-Int1 gene of Candida albicans. Yeast samples were exposed for 10 to 490 hours at 4°C and compared with unexposed controls. Sequencing of the PCR-amplified alpha-Int1 fragment found no mutations in exposed samples…

Microwave radiation induced oxidative stress, cognitive impairment and inflammation in brain of Fischer rats.

Research RF Safe Research Library Jan 1, 2012

This animal study exposed male Fischer-344 rats to 900 MHz or 1800 MHz microwave radiation for 30 days (2 h/day) and compared outcomes to sham exposure. The authors report significant cognitive impairment along with increased oxidative stress in brain tissue in exposed rats. They also report increased inflammatory…

[Dependence of the non-thermal radiofrequency electromagnetic field bioeffects on the typological features of electroencephalogram in humans].

Research RF Safe Research Library Jan 1, 2010

This volunteer study examined short-term non-thermal RF EMF exposure and reported changes in EEG spectra. The main reported effect was amplification of alpha-range energy, with the magnitude depending on baseline EEG typological features. The abstract also reports that combining RF EMF exposure with monotonous…

Are people living next to mobile phone base stations more strained? Relationship of health concerns, self-estimated distance to base station, and psychological parameters.

Research RF Safe Research Library Jan 1, 2009

This cross-sectional study surveyed 57 participants about perceived proximity to mobile phone base stations, EMF-related concerns, and psychological strain, and also collected saliva biomarkers. Self-declared base station neighbors (≤100 m) showed higher salivary alpha-amylase and higher symptom checklist scores on…

The effect of GSM-like ELF radiation on the alpha band of the human resting EEG.

Research RF Safe Research Library Jan 1, 2008

This double-blind, counterbalanced cross-over study investigated whether extremely low frequency (DC to at least 40 kHz) fields emitted by GSM handsets affect resting EEG. In 72 healthy volunteers, the authors report a decrease in the alpha band during 20 minutes of ELF exposure in the exposed hemisphere only. They…

Proteomic analysis in human fibroblasts by continuous exposure to extremely low-frequency electromagnetic fields.

Research RF Safe Research Library Jan 1, 2007

This in vitro study examined whether continuous extremely low-frequency electromagnetic fields (3 Hz, 4 mT for 3 hours) alter protein expression in human fibroblast cells using proteomics. The authors report that some protein expressions differed between exposed and sham cells. They identify reduced expression (about…

[Fluorescence spectra analysis of papain treated by pulsed electric field].

Research RF Safe Research Library Jan 1, 2007

This in vitro study used fluorescence excitation, emission, and polarization spectra to assess structural changes in papain after pulsed electric field (PEF) treatment. Under the reported PEF conditions (50 kV/cm, 1500 Hz, 40 µs pulses, 19,800 pulses), papain activity decreased by 56.5%. Spectral changes (increased…

Comparison of the effects of continuous and pulsed mobile phone like RF exposure on the human EEG.

Research RF Safe Research Library Jan 1, 2007

This study tested whether GSM-like RF exposure affects resting human EEG, focusing on alpha band power and non-linear EEG features. Using a fully counterbalanced cross-over design with 12 participants and a dipole antenna intended to better resemble handset exposure, the authors found no changes after 15 minutes of…

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