Getting inquisit to communicate to Power Lab

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Getting inquisit to communicate to Power Lab

Getting inquisit to communicate to Power Lab

Author	Message
dk57	dk57 posted 10 Years Ago Topic Details Share Topic
Group: Awaiting Activation Posts: 2, Visits: 2	Hi there, I don't understand the port definitions and use of binary numbers for inquisit scripting . I am designing a fear conditioning experiment and require Powerlab to automate electrical stimuli for particular trials. So in terms of putting this into my script, I am unsure of what the binary numbers indicate (under items). I have been given a demo script with these port definitions, however I don't quite understand what they mean. here are a few examples: <port prestimulus_habit> / port = lpt1 / subport = data / items = ("00011000") / erase = "00000000" </port> <port stimulus_onsetred> / port = lpt1 / subport = data / items = ("00001000") / erase = "00000000" </port> <port stimulus_onsetblue> / port = lpt1 / subport = data / items = ("00010000") / erase = "00000000" </port> Hope that makes sense. Any help appreciated :) Dk57 Tags port
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seandr	seandr posted 10 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 1.3K, Visits: 5.6K	Hi there, The binary strings are numbers written in base 2 rather than the standard base 10. For port signals, each bit maps to a pin, so with binary you can tell which pin is set high. However, you can also present stimuli as standard 10-base digits. For example: <port prestimulus_habit> / port = lpt1 / subport = data / items = (20) / erase = "00000000" </port> Perhaps that helps? -Sean
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Dave	Dave posted 10 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	Also see the "How to Present TTL Signals Through the Parallel Port" and "How to Use the Parallel Port Monitor Tool" topics in the Inquisit documentation (How To-section), as well as the language reference for the <port> element.
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