Electrical stimulator
From SpinozaWiki
For electrical current stimulation, we use a Digitimer Constant Current Stimulator, model DS7A. It can be used at 3T, 7T, as well as the mock scanner.
Most important specifications:
- MDD CE certified and FDA cleared medical device
- Pulse durations from 50µs to 2ms
- 100mA constant current output from 400V
- Flexible TTL compatible trigger options or front panel push button
- Alternating Polarity control – a toggle switch allows the stimulator to operate in +ve, -ve or alternating polarities during stimulation
If you'd like to drive the stimulator with Matlab, make sure you initialise access to the driver with io64 Then assign the right address: address = hex2dec('AFE8'); %check address device manager, ports (COM &LP), LPT1 resources 1st entry io range and flip the bits, for example like this:
byte = 0;
outp(address,byte);
byte = 255;
outp(address,byte);
Here you can find an example script.