mouse wheel to scroll through images, click to select specific image

Author	Message
bmatt	bmatt posted 11 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 7, Visits: 57	I am wanting to have participants scroll through a set of images with the mouse wheel, such that the set begins with one image and scrolling up will progress through the set in a sequential order whereas scrolling down will progress in the reverse order (importantly, I only want participants to see one image at a time). Participants would be choosing only one image as their response by clicking on the image. Is there a way to do this? Thanks in advance.
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Dave	Dave posted 11 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 108K	No, this isn't possible with a mousewheel-response. There isn't any way to distinguish between moving the wheel "up" or "down". The only thing you can do is to cycle through the stimuli via wheel movement as in: <block myblock> / stop = [trial.mytrial.response=="lbuttondown"] / trials = [1=mytrial] </block> <trial mytrial> / stimulusframes = [1=mytext] / validresponse = (lbuttondown, mousewheel) / inputdevice = mouse / branch = [trial.mytrial] </trial> <text mytext> / items = ("A", "B", "C", "D") / select = sequence </text>
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