Abstract: The invention generally provides a method of detecting or monitoring the characteristics (including change over time) of at least one electrical indicator of the function of a tissue in a biological organism in the presence of a magnetic field. Preferably, the magnetic field is generated by a magnetic resonance imaging (MRI) scanner. The method preferably also comprises one or more steps of detecting or monitoring sources of unwanted signal, and compensating for, or avoiding the unwanted signal. Unwanted signal includes signals arising in part due to the presence of the magnetic field, and/or directly measuring such unwanted signals for the purposes of avoidance of or compensation for the unwanted signals. Preferably, the method also enables detecting motion of the subject during the performance of the method steps discussed in the preceding two paragraphs.

Abstract: The invention generally provides a method of detecting or monitoring the characteristics (including change over time) of at least one electrical indicator of the function of a tissue in a biological organism in the presence of a magnetic field. Preferably, the magnetic field is generated by a magnetic resonance imaging (MRI) scanner. The method preferably also comprises one or more steps of detecting or monitoring sources of unwanted signal, and compensating for, or avoiding the unwanted signal. Unwanted signal includes signals arising in part due to the presence of the magnetic field, and/or directly measuring such unwanted signals for the purposes of avoidance of or compensation for the unwanted signals. Preferably, the method also enables detecting motion of the subject during the performance of the method steps discussed in the preceding two paragraphs.