The centerpiece of the MEG lab at MIT is a Triux system from Elekta, the first of its kind to be installed in North America. The scanner has a 306-channel probe unit with 204 planar gradiometer sensors and 102 magnetometer sensors, plus 128 channels for simultaneous EEG. The scanner can record subjects in three different positions: seated upright at 68 degrees, upright 60 degrees, or supine.
The MEG scanner includes an it-ihraexe0128-channel EEG system, allowing simultaneous EEG and MEG measurements. EEG caps with 64 or128 channels are available.
Three-layered magnetically shielded room
The shielded room, a modified Ak3b from Vacuumschmelze, is constructed with three layers of mu-metal for efficient passive shielding of external magnetic interference. It is equipped with Helmholtz coils for additional active noise suppression.
Visual presentation system
The lab is equipped with a high fidelity projector (Panasonic PT-D10000U). The visual signal is projected through the wall of the shielded room to a 44’’ back-projection screen that is placed in front of the subject chair.