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Re: [AUDITORY] EEG - what hardware do you use to record triggers?

Hi Abby,

I have a Biosemi too. I use neurobehavioral systems'  presentation software for triggering.  I use a startech parallel port pci card for the TTL trigger. Plus I have a creative labs audigy pci audio card. My triggers are pretty precise with this setup. Additionally, as a backup, I record the audio stimulus as an additional channel in the EEG. This gives me the ground truth of the audio in case for some reason the TTL triggers fail. 

I am happy to share any other specific details if you are interested. 



On Fri, Aug 4, 2023, 11:18 PM Abigail Noyce <anoyce@xxxxxx> wrote:
Hi Auditory list! Do you have an EEG triggering setup that you're happy with? Can you tell me about it? We are using the BioSemi EEG system, with a custom hardware box that converts auditory channel output to TTL pulses. This has worked well enough, but the custom hardware boxes are aging and starting to fail, and are not well documented or supported. We'd like to move to an off-the-shelf solution. We've recently purchased a new product, but we haven't gotten it working reliably (not calling anyone out here!). We need to be able to record multi-bit triggers, at sub-millisecond precision. What's out there that's working for people?

Abby Noyce

Abigail Noyce, Ph.D.