Fig. 1.

Dosimetric analysis of specific absorption rates (SARs) in the rat brain during exposure to GSM-1800 MHz. The heterogeneous model of phantom rat and loop antenna described by Leveque et al. (2004) was used to evaluate the local SAR in the brain with a 0.5-mm³ cubic mesh. a Global view of the rat phantom in the exposure setup with the loop antenna above its head and the metal-free heat pad (yellow) under the body. b Distribution of SAR values in the adult brain at 0.5-mm³ spatial resolution. The cortical regions delimited by black contours in 3D whole brain view, or the sagittal section, correspond to the motor cortex (mCx) and the entorhinal cortex (entCx) where gene expression was analyzed. The color-coded scale of SAR values shown applies to all numerical simulations shown in the figure