Method and apparatus for reducing contamination of the electrical signal

The present invention is minimal Generally, when recording signals and magnetic resonance imaging (MRI) signal of the electroencephalogram (EEG), as well as other environments (where the electrical signal is subjected to repeated interference) at the same time, an artifact to, and to methods and apparatus for particularly suitable signal processing and data acquisition for optimizing the signal to noise. The method of the present invention, other recording containing repeating electrical interference (fMRI and recording electrical myelography (EMG) signals between the electrocardiogram (ECG) signal or a recording of the electrical skin resistance (GSR) signal, or 60Hz noise It can be applied to include) a transmission in the presence or electrical transients. The present invention provides a method of reducing the contamination of the electrical signal recorded in the presence of a repetitive interference contamination.