Title :
A new multichannel PC-controlled stimulator developed for primary motor cortex investigations
Author :
Mallette, S. ; Sawan, M. ; Fortier, P.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ecole Polytech. de Montreal, Que., Canada
Abstract :
Describes a current-mode electrical stimulator that can generate a wide range of either monophasic or biphasic current pulses: amplitude (0.10 mA), frequency (0-1000 Hz) and pulse width (0.05-3.15 msec). These parameters are fully controlled and programmed through PC-software. Up to 8 independent and simultaneous channels can be activated continuously. The stimulator, designed to fit in one ISA expansion slot of a PC, is a mixed-signal device composed of a digital part implemented in Field Programmable Devices (FPDs) and an analog specific flexible interface. The system is intended for stimulation of the primary motor cortex with the aim of evoking a muscle twitch or movement
Keywords :
bioelectric phenomena; biological techniques; biology computing; brain; microcomputer applications; muscle; neurophysiology; 0 to 10 mA; 0 to 1000 Hz; 0.05 to 3.15 ms; ISA expansion slot; anasthetized animals; biphasic current pulses; evoked movement; evoked muscle twitch; field programmable devices; intracortical microstimulation; mixed-signal device; monophasic current pulses; multichannel PC-controlled stimulator; primary motor cortex investigations; Anatomy; Assembly systems; Costs; Digital control; Frequency; Hardware; Instruction sets; Microelectrodes; Pulse generation; Space vector pulse width modulation;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579541
