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measure button release time

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juliane_d	juliane_d posted 6 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 12, Visits: 39	Hi there, Is it possible to measure the response time as a button release time instead of onset of button press? And in this line, would it be possible to implement a response trial that begins on participants releasing a keypress? thanks again, Juliane
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Dave	Dave posted 6 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	+x juliane_d - Thursday, March 8, 2018 Hi there, Is it possible to measure the response time as a button release time instead of onset of button press? And in this line, would it be possible to implement a response trial that begins on participants releasing a keypress? thanks again, Juliane Yes, a <trial> can accept a key release as response. To specify a release prepend a minus sign to the respective keyboard scan code. E.g. <trial mytrial> ... / validresponse = (-57) ... </trial> would accept a release of the spacebar as its response.
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juliane_d	juliane_d posted 6 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 12, Visits: 39	+x Dave - Thursday, March 8, 2018 +x juliane_d - Thursday, March 8, 2018 Hi there, Is it possible to measure the response time as a button release time instead of onset of button press? And in this line, would it be possible to implement a response trial that begins on participants releasing a keypress? thanks again, Juliane Yes, a <trial> can accept a key release as response. To specify a release prepend a minus sign to the respective keyboard scan code. E.g. <trial mytrial> ... / validresponse = (-57) ... </trial> would accept a release of the spacebar as its response. thanks a lot, works nicely!
	Reply Like 66