DuoMAG MP-Dual

Delivering repeated pairs of monophasic pulses to two cortical regions over short periods has become a very popular method of exploring intra-cortical circuits in the human brain. ‘Paired Pulse’ stimulation is a method achieved by delivering two monophasic pulses in very quick succession.

By pairing two DuoMAG MP stimulators through an intelligent combining module, the DuoMAG MP-Dual offers unrivalled performance and flexibility for the application of both paired pulse and twin coil stimulation. A combining module also allows for both stimulators to be split into two DuoMAG MP units. The native DuoMAG software enables the system to be used in three separate modes - Pair, where the stimulators operate as primary and secondary stimulators with one triggering the other at a defined interval either through one or two coils; Independent, where both stimulators can be operated separately of each other, again, through one or two coils, and Dual, where the output of both stimulators can be combined through a single coil to deliver a pulse equivalent of 134% of a single DuoMAG MP.

The quick recharge rate of the DuoMAG capacitor allows for a maximum frequency rate of 4Hz and 1Hz stimulation at 95% stimulator output. Additionally, it is possible to define a capacitor ‘recharge delay’ for applications where ppTMS is combined with EEG recording to allow for a period of ‘clean’ EEG shortly after the delivery of the TMS pulse.

USB and TTL connections on the reverse of the stimulator module allow for novel programmes such as QTrac or C.E.D’s Signal software to control the device externally.