Trigger an external stimulator using MC Rack

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Trigger an external stimulator using MC Rack

Post  AdamJackson on Mon May 26, 2014 3:02 am

Hello,

I am hoping to stimulate my slice using a bipolar wire instead of using the internal STG to stimulate one of the channels using the MC rack software. Is it possible to do this and simultaneously record from the MEA?

Any information would be appreciated

Thanks,
Adam

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Re: Trigger an external stimulator using MC Rack

Post  Frank MCS on Tue May 27, 2014 1:30 am

Dear Adam,
you mention an internal STG, so do you use a MEA2100? Or is it a MEA1060?

Best regards Frank MCS
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Re: Trigger an external stimulator using MC Rack

Post  AdamJackson on Tue May 27, 2014 2:04 am

Hi Frank,

It is the MEA2100 system

Best wishes,
Adam

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Re: Trigger an external stimulator using MC Rack

Post  Frank MCS on Tue May 27, 2014 2:18 am

Dear Adam,
there is no way to route out the output of the internal STG to an external electrode. If you use an external stimulator, I would send a TTL simultaneously to the stimulation pulse to one of the four Digital Inputs on the interface board. They correspond to the bits 0-3 of the digital channel in MC_Rack. So you can set a trigger detector on the respective bit and trigger your recording to the external stimulator. Of course you lose the blanking functionality.

Best regards Frank MCS

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Re: Trigger an external stimulator using MC Rack

Post  orkan on Thu Oct 16, 2014 1:33 am

Is it possible with a portable ME32 system? In other words, can I send a TTL to start external stimulator?

Or Can I start and stop my MC Rack recording with trigger from external stimulator?

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Re: Trigger an external stimulator using MC Rack

Post  Frank MCS on Thu Oct 16, 2014 2:27 am

Dear Orkan,
both is possible. A TTL out and input is availabl on the partable USB-ME32 via LEMO connectors (D0 IN and D0 OUT). The easiest way would be to trigger the recording with a TTL from the external stimulator. Please see the on-line help of MC_Rack/Step by Step Tutorial/Monitoring and Recording Triggered Activity.

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Re: Trigger an external stimulator using MC Rack

Post  orkan on Thu Oct 16, 2014 2:45 am

Thanks for the reply

Regards
Orkan

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