This rat study examined acute (1-week) and chronic (10-week) exposure to 2100 MHz radiofrequency radiation (3G UMTS-like) and assessed auditory mismatch negativity (MMN) alongside biochemical and histological brain measures. The abstract reports that acute exposure was associated with reduced MMN-related electrophysiological parameters and changes in GluR2 and GFAP with observed brain ultrastructural alterations. Chronic exposure showed opposite protein trends and enhanced MMN parameters versus chronic controls, and lipid peroxidation was not significantly different.

RF Safe argues that an acute laboratory finding—reported as increased ad-libitum energy intake after brief 3G handset exposure versus sham—supports its proposed “S4 Timing Fidelity” mechanism for non-thermal RF effects. The post links the behavioral outcome to hypothalamic energy-sensing and autonomic changes via voltage-gated ion channel (VGIC) gating perturbations, and further connects this to mitochondrial/oxidative phosphorylation signaling. It also frames electromagnetic hypersensitivity (EHS) as a sensitivity phenotype and proposes testable predictions involving pulse structure and physiological correlates (e.g., HRV, EEG).