Abstract

Overview

The study focuses on the neurophysiological effects of human exposure to 4G radiofrequency signals, a topic that has been linked with potential adverse clinical symptoms. Despite various studies on radiofrequency emissions, the specific impact on intrinsic connectivity networks (ICNs)—crucial for certain behavioral functions—remains under-researched.

Findings

• Investigations were carried out with 17 participants subjected to both real and sham exposures to time-division long-term evolution signals for 30 minutes.
• Assessments were made using resting-state functional magnetic resonance imaging (fMRI) data collected before and after the exposure.
• Analysis involved group-level independent component analysis to delineate networks and compute dynamic and conventional connectivity.

🔍 Results indicate no significant statistical differences in static or dynamic functional network connectivity between real and sham exposures, suggesting a negligible short-term impact of electromagnetic fields on ICNs.

Conclusion

The investigations underscore the need for further studies using varied brain parcellations and metrics to potentially elucidate different outcomes in brain modulation concerning electromagnetic field exposure. The present findings emphasize the critical role of precisely designed methodologies in interpreting the influence of electromagnetic fields on human health.