RE: How to put response frames (windows) on a picture?

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RE: How to put response frames (windows) on a picture?

How to put response frames (windows) on a picture?

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atolopilo	atolopilo posted 3 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 7, Visits: 36	Hi, I try to implement some kind of a face in the crowd task. I've seen a lot of that kind of script but none of them fits mine. In every trial, Participant has to indicate 1 of 4 faces presented on a matrix by clicking on it. Previously, I assigned specific keys to image position in a matrix (e.g. "w" for 1, "e" for 2, etc.) and marked them on a keyboard but because of switching from stationary lab to online study, I would prefer to change this "technique". I would like to set a response as a mouse click on a chosen pic, e.g. participant wants to choose face 2 (in the matrix) so just clicks on this particular face (+ it would be saved as "2" in my results). Additionally, It would be great if the face (box) that participant has a cursor on it (in that particular moment) was illuminated. I guess that I need to add some kind of "shape" or "mask" but have no idea where and how. My script is very basic: item -> picture -> trial -> block with 80 noreplace trials. Thank You for all your help! Typical matrix (it's one picture item, not 4 separate images): Here is a scheme for my study: Attachments 1.iqx (68 views, 35.00 KB)
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Dave	Dave posted 3 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	If you want response to be a click on a picture element, set the trials' /inputdevice to mouse and define the name of the displayed picture elements in /validresponse.
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atolopilo	atolopilo posted 3 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 7, Visits: 36	+x Dave - 4/12/2021 If you want response to be a click on a picture element, set the trials' /inputdevice to mouse and define the name of the displayed picture elements in /validresponse. How will I know which "area" of the picture someone clicked on?
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Dave	Dave posted 3 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x atolopilo - 4/14/2021 +x Dave - 4/12/2021 If you want response to be a click on a picture element, set the trials' /inputdevice to mouse and define the name of the displayed picture elements in /validresponse. How will I know which "area" of the picture someone clicked on? responsex and responsey and math based on the screen area inhabited by the image. https://www.millisecond.com/support/docs/v5/html/language/properties/responsex.htm https://www.millisecond.com/support/docs/v5/html/language/properties/responsey.htm https://www.millisecond.com/support/docs/v5/html/language/properties/top.htm https://www.millisecond.com/support/docs/v5/html/language/properties/left.htm <picture examplepicture> / items = ("example.png") / position = (50%,50%) / size = (80%, 80%) </picture> <trial exampletrial> / stimulusframes = [1=examplepicture] / inputdevice = mouse / validresponse = (examplepicture) / ontrialend = [ values.img_widthpx = picture.examplepicture.right - picture.examplepicture.left; values.img_heightpx = picture.examplepicture.bottom - picture.examplepicture.top; values.responsex_in_img = trial.exampletrial.responsex - picture.examplepicture.left; values.responsey_in_img = trial.exampletrial.responsey - picture.examplepicture.top; values.responsex_pct = (values.responsex_in_img/values.img_widthpx)100; values.responsey_pct = (values.responsey_in_img/values.img_heightpx)100; ] </trial> <values> / img_widthpx = 0 / img_heightpx = 0 / responsex_in_img = -1 / responsey_in_img = -1 / responsex_pct = -1 / responsey_pct = -1 </values> <block exampleblock> / trials = [1-4 = exampletrial] </block> <data> / columns = (date time subject group blocknum blockcode trialnum trialcode latency response trial.exampletrial.responsex trial.exampletrial.responsey values.responsex_in_img values.responsey_in_img values.responsex_pct values.responsey_pct values.img_widthpx values.img_heightpx) / separatefiles = true </data>
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