[en] This paper reviews the effect of 50-60 Hz weak electric, magnetic and combined electric and magnetic field exposure on cognitive functions such as memory, attention, information processing and time perception, as determined by electroencephalographic methods and performance measures. Overall, laboratory studies, which have investigated the acute effects of power frequency fields on cognitive functioning in humans are heterogeneous, in terms of both electric and magnetic field (EMF) exposure and the experimental design and measures used. Results are inconsistent and difficult to interpret with regard to functional relevance for possible health risks. Statistically significant differences between field and control exposure, when they are found, are small, subtle, transitory, without any clear dose-response relationship and difficult to reproduce. The human performance or event related potentials (ERPs) measures that might specifically be affected by EMF exposure, as well as a possible cerebral structure or function that could be more sensitive to EMF, cannot be better determined. (author)

[en] We analyze data taken using a test bench with a prototype pad chamber designed to work in a high multiplicity environment. For this purpose we use the nonlinear methods presented in a previous paper. We show that the results which can be inferred from our simulation studies are well reproduced by real data. We also show that a global accuracy of 100 μm ( similar eq2% of the pad size) can easily be achieved. The influence of the pad spacing is studied and a way to account for it is proposed. We also discuss the quality of individual errors which can be computed on an event by event basis and show that they can be of the order of 20 to 50 μm (∼0.5-1% of the pad size). Methods which deal with ADC saturation effects are also illustrated. ((orig.))