Josh
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Hi, The easiest thing will be to just put the questions on the same line as your sentences in the csv file. So one sentence may look like this: "While Dale rushed Alex inspected some shirts..Was Alex rushed?". These sentences can then be …
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Hi, In the tutorial, you presented stimuli with the help of an inline_script. Instead of a sketchpad (the thing that you displayed instructions on), you used a canvas. You can just as easily put an image on this canvas as you put text on there - ju…
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Hi Daniela, Do you mean that the scales have to move in "fluid motion", and that participants can click and drag one of those scales? This is going to be pretty difficult, although there may be an existing widget that you could make use o…
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Hi, There may be something wrong with the run-if setting of your inline_script item. Could you verify that it is set to 'run always'? (And you probably want to place the script in a sequence and place that sequence in a loop, rather than directly p…
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Hi Sophia, Let's answer your second question first: yes, that's possible. When you start up a new experiment, the item at the top of the overview (called "New experiment" by default) will show you some settings, one of which is the font. …
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Hi, If I understand correctly, one trial consists of 15 stimuli, followed by a question and a keyboard response? You could do this in multiple ways. The most straightforward way might be to just place 16 sketchpads in your trial sequence, 15 of wh…
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Hi Han, Not an expert here, but I do know that the EyeTribe server needs to run in the background in order for you to be able to use it in OpenSesame; so I think the EyeTribe server rather than OpenSesame will be the bottleneck. I can imagine ther…
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Hi Troy, Which version of OpenSesame are you using? @Edwin, the pygaze_wait item is supposed to work fine with the EyeTribe, right? Josh
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Hi Nilton, Yes, it's possible to use OpenSesame with the Eyetribe and play videos. You may want to have a look at this page: http://osdoc.cogsci.nl/3.0/devices/pygaze/ Cheers, Josh
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Hi, I'm afraid your question is not specific enough. You say you don't know how to write code. How much experience do you have? Have you looked up some python tutorials on the internet? The central idea will be to create and alter variables, or mo…
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Hi Guido, You could make sure that different types of responses are kept separate in one logfile, simply by creating your own response variables. For instance, when you get a response for one of the tasks, you could do this in an inline script: …
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Hi Guido, Yes, this is possible. There's in fact already an item for this; in the item window, click the downward arrow at the bottom to reveal additional items. The joystick item is under the response collection category. All that's left to do is …
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Hi Raph, Gary's method works, but there's an even simpler way if you don't want to resort to inline_scripts. The duration of your post-stimulus fixation dot is set to 0ms, the keyboard_response is set to 1800ms, and after the keyboard_response you …
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Hi, What you want, is to present those equations in a while-loop (inline_script). The idea is that you can keep track of time, by creating a variable using the self.time() function, e.g.: start_time = self.time(). Every iteration through the while …
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Perhaps even simpler: in that first inline_script where you create the item lists, you could translate those lists from 20-element lists into 60-element lists (i.e., after you shuffled the 20-element lists). In your new lists your random sequence o…
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Hi, You could make lists of your items in an inline_script, e.g. items_condition1 = ['image1.png', 'image2.png', 'image3.png'] etc cetera. In that same inline_script you would give the items a shuffle, using the line random.shuffle(items_condition1…
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And one more thing: if by feedback you meant giving participants their accuracy scores, then you probably already anticipated that this would be especially tricky. The only thing I can think of is that you'd have 100 tiny images ready in the filepoo…
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Hi Florian, That's a tricky one! And you already had the solution; you have to use images of text rather than the text function. Of course the same goes for the instructions; you have to use an image displaying the instruction text. Cheers, Josh
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Hi Han, This is something that may be provided by the developer of your specific eyetracker. I know SRResearch has software to process the Eyelink data with, for example. If worse comes to worst you could always parse the raw data using a script o…
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Hi Raph, you could insert an inline_script at the beginning of your experiment with a line of code to initialize the keyboard: see http://osdoc.cogsci.nl/python/keyboard/ for instructions. After your stimulus, you could insert another inline_script…
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Hi Francisco, great that you worked out the problem yourself! Cheers, Josh
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Hi mr. Wiseguy the third, You said you want the stimuli to change upon receiving a response; this would mean that the sketchpad for the changed stimuli should be somewhere after the keyboard_response item - (or do you mean you want to go to the nex…
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Hi, Could you provide me the structure of your experiment? (e.g. sketchpad, keyboard_response, sketchpad). With their relative durations, and also everything you entered in the keyboard_response. Cheers, Josh
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Hi Boris, I think it would be best for you to use an inline_script for this. The first step is to create a canvas, so that it would present the 15 pictures in a way similar to the sketchpad. http://osdoc.cogsci.nl/python/canvas/. The canvas can be…
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Hi, and welcome to OpenSesame. One way of doing this would be to set the duration of your target sketchpad to 0ms, with the keyboard_response item following immediately after that. The timeout of the keyboard_response item should be set to 500. Aft…
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Hi Helene, I think what Sebastiaan meant with dummy experiment, is to just try to get the connection with the eyetracker going and create something simple to 'prove' that. As was done in this example: http://osdoc.cogsci.nl/devices/pygaze/#example …
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I'm afraid I don't possess the technical prowess to judge whether your way of tracking time would be decent or problematic. This would also depend on your experiment. In general I think this is a decent way to record the time to a keypress, while it…
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Hi Simran, How you process your triggers is entirely up to you and your experiment, but in general triggers should just appear on your EEG logfile. How your logfile will look may also depend on the EEG software. Have you tried it out yet? In any ca…
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You're living in a dreamworld, Neon. Matrix references aside, the way you record data seems pretty similar to how one would record ERP's (flags working in a similar way as triggers). I haven't got experience with your specific eye tracker, but Pyg…
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Hi Jasmin, one more thing though: the lines of code should be in the run-phase rather than the prepare-phase. (All prepare-phases are run before anything else, meaning it would create the response time variable before the form. I edited my mistake i…