Inquist 4 + BIOPAC (MP150) = biofeedback?


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andy
andy
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Hi all,


I plan to run a training that decreases a potentially existing incongruence between subjective and physiological reactions to emotions.


For this purpose, I will presents emotional expressions to participants and subsequently ask them to indicate their own emotional reactions to them (using Inquisit 4). In parallel, I am going to record expression-contingent changes in skin conductance level (SCL) and heart rate (using BIOPAC MP 150) and I would like to feedback these physiological changes e.g. an increase in SCL to the participants within an Inquisit-trial (e.g. a feedback trial that shows both reactions (subjective statement + physiological changes) on the same screen within the Inquisit experiment).


Most importantly, I need to know, whether it is technically possible to export BIOPAC signals in a form that Inquisit can read and integrate within a given trial (I have been thiniking about TTL-Signals, the stimulator function of MP150 (http://www.biopac.com/Manuals/acqknowledge%204%20software%20guide.pdf  -  p108ff), or the possibility to integrate BIOPAC data to SMI BeGaze or Noldus Observer). Has anybody hands-on experience with such a setup?


As I am not a technican, I would very much appreciate any idea!


Best ,


Andy





Dave
Dave
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I very much doubt that BIOPAC's AcqKnowledge software is able to communicate its analysis results to any other application in real-time, much less via TTL signals. As far as I can see, the "Stimulator" options are designed to time-synch and/or trigger external equipment (e.g. a shock or tone generator), not to transfer complex state information / acquisition results.


I'm pretty sure it can export to various applications (e.g. BeGaze) for data integration after the fact (i.e. not in real-time). However, I would recommend you take this up with BIOPAC support who certainly know their hard- and software capabilities better than I do.


andy
andy
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Hi Dave,


thank you for your quick response. OK, I'll contact Biopac support for more information and keep you posted in case there is any solution for my concern.


Best,


Andy


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