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Description: This is a discussion list for users of the E-Prime experiment generation system built by Psychology Software Tools, Inc. in Pittsburgh.  Maintainer: Brian MacWhinney at CMU. Related site: step.psy.cmu.edu.  Previous messages are  archived at http://listserv.linguistlist.org/archive s/eprime.html

 

E prime casino game code 
  Hey everyone, I'm a Junior psychology student, and am conducting an experiment dealing with Gambler's Fallacy this fall. I am trying to find code for a roulette wheel game, or at least get tips on how to write one. I'm brand new to the E prime program so any help would be appreciated. If you would like any... more »
By Corey Christner  - 9:19pm - 1 new of 1 message    

Noob Trying to Program Auditory n-back task 
  Hello, I am a complete E-Prime neophyte (a summer student), and so could use a bit of help to point me in the right direction. My experiment is composed of two (simultaneously presented) activities, to study the effects of divided attention: 1) I am trying to run an auditory 2-back task, where the Subject hears words... more »
By Shawn Byron Beckett  - May 17 - 1 new of 1 message    

Opening Eprime 2 Professional files in Non-Professional version 
  No, you really need EP2 Pro in order to work with .es2 or .ebs2 files in the Pro format, the "base" edition of EP2 will not read them. But please do not take my word for that, contact PST Web Support yourself. I regularly advise everyone to spend the extra $200 for Pro, it is well worth the extra cost for many reasons. You might... more »
By David McFarlane  - May 16 - 3 new of 3 messages    

Two subjects at same time (prisoner's dilemma) 
  We're trying to get e-prime to control the experiment for two subjects at the same time with a prisoner's dilemma task. Can it communicate between two computers? Should we simply have 2 screens for one computer? Can e-prime collect responses from 2 keyboards at the same time and present feedback according to both inputs?... more »
By Elilab  - May 15 - 3 new of 3 messages    

Nordic Neuro Lab Sync Box 
  Hello everyone, We are using Nordic NeuroLab's Sync Box to synchronize our Eprime experiment to the MRI trigger signal. Currently the Sync Box is setup in the USB Serial Mode and it sends ASCII code for the character "s" to the stimulus presentation PC when a trigger signal is received from MR scanner.... more »
By Swathi  - May 13 - 1 new of 1 message    

Sequences experiment 
  I'm an E-Prime newbie designing an artificial grammar experiment for my final Master's project. In this experiment, subjects see a string of symbols and have to recreate the sequence using an SR box marked with matching symbols, i.e. a subject could see a string of a circle, a diamond shape and a poundsign and need to press the corresponding buttons. In the... more »
By Julia Fernandez  - May 10 - 1 new of 1 message    

How do you tell which input device was used to make the most recent response to a slide? 
  How do you tell which input device was used to make the most recent response to a slide or object? You do it with SlideNameGoesHere.Device , which will give you a lovely String. Just another note to myself and anyone else having trouble with E-Basic Help.
By Benjamin  - May 10 - 1 new of 1 message    

NTP and TET servers -- Linking EEG and eyetracking 
  Hi there, I've also posted this to the PST forum -- trying to cast a wide net! Appreciate your ideas: I am installing our new eye tracking system (Tobii TX300). I'd like to use a one-computer system (i.e., 1 computer to both run EPrime and Tobii). This would be ideal for us, because we plan on also sending events from EPrime 2... more »
By Caitlin  - May 8 - 1 new of 1 message    

FW: Polhemus 
  Hi, Never heard of a way to interface matlab from E-Prime, I’d be interested if anyone would have a way. Of course, you could compile from within matlab and try to go from there, but I suspect the amount of effort would really not be worth it. You could, of course, just forego e-prime and try Psychtoolbox.... more »
By Cognitology  - May 7 - 8 new of 8 messages    

Critical time delay after a subject's input 
  Hello, I am trying to solve a timing problem. When the frame waits for the subject to press a button, a PreRelease procedure seems to be impossible for e-prime. This adds an unwanted onset delay to the next frame. This is quite strange to me: couldn't e-prime start loading the following frame from the beginning of the first frame?... more »
By Vaaal  - May 6 - 1 new of 1 message    

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