D. Bilecen et al., THE MR TOMOGRAPH AS A SOUND GENERATOR - FMRI TOOL FOR THE INVESTIGATION OF THE AUDITORY-CORTEX, Magnetic resonance in medicine, 40(6), 1998, pp. 934-937
An automatic fMRI protocol for the Investigation of the human auditory
cortex has been developed. For the activation of the auditory system,
the scanner noise itself is the source of sound, Rapid switching of B
-0 gradients allows the generation of tones of defined frequencies and
amplitude on a conventional scanner without hardware change. No addit
ional device for sound generation or sound delivery is needed. The pro
posed technique allows functional MRI of the auditory cortex in a clin
ical routine session.