Figure 7 From: The neurochemical basis of human cortical auditory processing: combining proton magnetic resonance spectroscopy and magnetoencephalography Auditory evoked magnetic fields. (A) Magnetic waveforms of an individual subject, superimposition of 37 MEG channels, covering the left hemisphere. (B) Amplitude of the four N1m peaks in the same subject. The grey bars indicate the onset and duration of the acoustic stimulation.Back to article page