Upgraded audio stimulation system at the MEG center

The audio-stimulation system of the MEG platform has been upgraded!
DATAPixx is now used to deliver sounds signals from outside the magnetically shielded room to the ears of the participant through an Etymotic ER-30 system, which we have modified to achieve flat-frequency response in the 0-6 kHz range — a significant portion of the human auditory range — as shown in the figure.
The upgrade was carried out by Bruno Giordano (INT), Jean-Michel Badier (INS), Giorgio Marinato (INT), Khoubeib Kanzari (INS) and Marie Plegat (INS/INT), with funds from ILCB and additional support from Marseille Imaging.

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