RE: Add sound in posttrialpause

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Add sound in posttrialpause

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Nesard	Nesard posted 9 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 17, Visits: 153	Hi, I've set a posttrialpause = 1000. I need to play a quick sound (like a beep) at the beggining of this pause, and also show a grey screen during all the posttrialpause. Can you tell me how can I do this? This is the trial code: <trial FF_recall> /ontrialbegin = [values.picturescore = 0] /ontrialbegin = [values.picturecount += 1] /stimulusframes = [1 = famousface] /response = timeout(3000) /posttrialpause = 1000 </trial> I need to add the sound because I'm going to record the facial reaction of the subjects with a webcam. Since Inquisit doesn't support webcam recording, I'm going to put a microphone in front of the speakers. Then, when I analize the videos, I will use the beeps as a guide to know which stimuli was looking the participant. Thanks.
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Dave	Dave posted 9 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	You can display both the <sound> as well as as grey <shape> during the /posttrialpause by specifying /responsemessage attributes in the <trial>. From the documentation: "Syntax / responsemessage = (responsevalue, stimulusname, duration) Parameters responsevalue A valid response value for the trial. See validresponse for possible response values. stimulusname The name of a stimulus element defined elsewhere in the script. duration An integer specifying duration in milliseconds for which the stimulus is displayed on the screen. A value of "0" indicates that stimulus should be displayed for the remaining duration of the trial. Remarks The stimulus is shown for duration milliseconds. If the duration is 0, the stimulus is presented for the duration of the posttrialpause. This attribute can be listed multiple times in a given trial to specify different feedback stimuli for different responses. " I.e.: <trial FF_recall> ... / responsemessage = (anyresponse, beep, 0) / responsemessage = (anyresponse, greyscreen, 0) </trial> <sound beep> / items = ("beep.wav") ... </sound> <shape greyscreen> / shape = rectangle / color = (grey) / size = (100%, 100%) ... </shape>
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Nesard	Nesard posted 7 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 17, Visits: 153	+x Dave - Monday, August 10, 2015 You can display both the <sound> as well as as grey <shape> during the /posttrialpause by specifying /responsemessage attributes in the <trial>. From the documentation: "Syntax / responsemessage = (responsevalue, stimulusname, duration) Parameters responsevalue A valid response value for the trial. See validresponse for possible response values. stimulusname The name of a stimulus element defined elsewhere in the script. duration An integer specifying duration in milliseconds for which the stimulus is displayed on the screen. A value of "0" indicates that stimulus should be displayed for the remaining duration of the trial. Remarks The stimulus is shown for duration milliseconds. If the duration is 0, the stimulus is presented for the duration of the posttrialpause. This attribute can be listed multiple times in a given trial to specify different feedback stimuli for different responses. " I.e.: <trial FF_recall> ... / responsemessage = (anyresponse, beep, 0) / responsemessage = (anyresponse, greyscreen, 0) </trial> <sound beep> / items = ("beep.wav") ... </sound> <shape greyscreen> / shape = rectangle / color = (grey) / size = (100%, 100%) ... </shape> Hello, This worked perfectly for /posttrialpause. Now I am trying to do the something similar in other experiment with /pretrialpause. Can you tell me how to add the grey screen and the beep during a /pretrialpause? This is what I tried but it did't worked: <trial negative_intensity1> /pretrialpause = 1000 /responsemessage = (anyresponse, beep, 0) /responsemessage = (anyresponse, greyscreen, 0) /ontrialbegin = [values.emotion = "negative"; values.intensity = 1] /stimulusframes = [1 = negative_intensity1] /ontrialend = [values.stimulusitem = picture.negative_intensity1.currentitem] /ontrialend = [values.encoder = picture.negative_intensity1.currentitemnumber] /timeout = values.stimulusduration /branch = [surveypage.emotionprofile_negative] /recorddata = false </trial> Thanks.
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Dave	Dave posted 7 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x Nesard - Friday, February 24, 2017 +x Dave - Monday, August 10, 2015 You can display both the <sound> as well as as grey <shape> during the /posttrialpause by specifying /responsemessage attributes in the <trial>. From the documentation: "Syntax / responsemessage = (responsevalue, stimulusname, duration) Parameters responsevalue A valid response value for the trial. See validresponse for possible response values. stimulusname The name of a stimulus element defined elsewhere in the script. duration An integer specifying duration in milliseconds for which the stimulus is displayed on the screen. A value of "0" indicates that stimulus should be displayed for the remaining duration of the trial. Remarks The stimulus is shown for duration milliseconds. If the duration is 0, the stimulus is presented for the duration of the posttrialpause. This attribute can be listed multiple times in a given trial to specify different feedback stimuli for different responses. " I.e.: <trial FF_recall> ... / responsemessage = (anyresponse, beep, 0) / responsemessage = (anyresponse, greyscreen, 0) </trial> <sound beep> / items = ("beep.wav") ... </sound> <shape greyscreen> / shape = rectangle / color = (grey) / size = (100%, 100%) ... </shape> Hello, This worked perfectly for /posttrialpause. Now I am trying to do the something similar in other experiment with /pretrialpause. Can you tell me how to add the grey screen and the beep during a /pretrialpause? This is what I tried but it did't worked: <trial negative_intensity1> /pretrialpause = 1000 /responsemessage = (anyresponse, beep, 0) /responsemessage = (anyresponse, greyscreen, 0) /ontrialbegin = [values.emotion = "negative"; values.intensity = 1] /stimulusframes = [1 = negative_intensity1] /ontrialend = [values.stimulusitem = picture.negative_intensity1.currentitem] /ontrialend = [values.encoder = picture.negative_intensity1.currentitemnumber] /timeout = values.stimulusduration /branch = [surveypage.emotionprofile_negative] /recorddata = false </trial> Thanks. You can't use /pretrialpause for that. A trial does not and cannot display stimuli during /pretrialpause. What you need to do is use the <trial>'s /stimulustimes instead: / stimulustimes = [0=greyscreen, beep; 1000=negative_intensity1]
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