Re: Solutions for sending triggers in an AEP (EEG) experiment? (Pawel Kusmierek )

Subject: Re: Solutions for sending triggers in an AEP (EEG) experiment?
From:    Pawel Kusmierek  <pawel.kusmierek@xxxxxxxx>
Date:    Wed, 10 Sep 2008 18:19:14 -0400

Thanks Bob for pointing this out! I know that getting synchrony within a multichannel soundcard is not easy and it's probably impossible with multiple soundcards unless thay have their own synchronizing mechanisms. However, my "piece of hardware" is not a soundcard. Well, being an complex programmable I/O interface it has multiple analog inpput and outputs (as well as TTL I/O), so technically it can be used as a soundcard. And I do play my stimuli with it. But it is not controlled with windows sound mechanisms, and all issues of relative timing between incoming and outgoing signals are solved with accuracy well beyond my needs. I am talking about CED Power 1401 interface. Pawel -- Pawel Kusmierek PhD Department of Physiology and Biophysics Georgetown University Medical Center The Research Building WP23 3970 Reservoir Road NW Washington, DC 20007 phone: +1 202 687-8851 or 8028, fax: +1 202 687-0617

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