RE: Allowing response before presentation of last item in a trial

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RE: Allowing response before presentation of last item in a trial

Allowing response before presentation of last item in a trial

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MaxPrimbs	MaxPrimbs posted 4 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 6, Visits: 16	Dear Community, we´re programming a reaction time experiment in Inquisite 6. In the experiment, participants will categorise a stimulus as fast as possible. The stimulus is hereby only being presented for a few hundred milliseconds. The timing of each trial looks somewhat like this: / stimulustimes=[0=fixation, reminder_right, reminder_left; 1000=Old_Happy_r; 1500=Blackscreen_pic] Now, we ran into a problem: You cannot respond before the Blackscreen_pic has been presented and the reaction time measurement seems to start after the presentation of the last item (i.e. Blackscreen_pic). Optimally, we would like the reaction time measurement to begin running when the Old_Happy_r is being presented (and also allow responses starting at that time). Is this possible in Inquisite 6? Best, Max
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Dave	Dave posted 4 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 105K	+x MaxPrimbs - 1/29/2021 Dear Community, we´re programming a reaction time experiment in Inquisite 6. In the experiment, participants will categorise a stimulus as fast as possible. The stimulus is hereby only being presented for a few hundred milliseconds. The timing of each trial looks somewhat like this: / stimulustimes=[0=fixation, reminder_right, reminder_left; 1000=Old_Happy_r; 1500=Blackscreen_pic] Now, we ran into a problem: You cannot respond before the Blackscreen_pic has been presented and the reaction time measurement seems to start after the presentation of the last item (i.e. Blackscreen_pic). Optimally, we would like the reaction time measurement to begin running when the Old_Happy_r is being presented (and also allow responses starting at that time). Is this possible in Inquisite 6? Best, Max /beginresponsetime is what you need: https://www.millisecond.com/support/docs/v6/html/language/attributes/beginresponsetime.htm Depending on how you want the trial to behave after response -- i.e. continue to show the remaining stimuli or not -- you may also need /responseinterrupt: https://www.millisecond.com/support/docs/v6/html/language/attributes/responseinterrupt.htm Edited 4 Years Ago by Dave
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MaxPrimbs	MaxPrimbs posted 4 Years Ago ANSWER Post Details Share Post
Group: Forum Members Posts: 6, Visits: 16	+x Dave - 1/29/2021 +x MaxPrimbs - 1/29/2021 Dear Community, we´re programming a reaction time experiment in Inquisite 6. In the experiment, participants will categorise a stimulus as fast as possible. The stimulus is hereby only being presented for a few hundred milliseconds. The timing of each trial looks somewhat like this: / stimulustimes=[0=fixation, reminder_right, reminder_left; 1000=Old_Happy_r; 1500=Blackscreen_pic] Now, we ran into a problem: You cannot respond before the Blackscreen_pic has been presented and the reaction time measurement seems to start after the presentation of the last item (i.e. Blackscreen_pic). Optimally, we would like the reaction time measurement to begin running when the Old_Happy_r is being presented (and also allow responses starting at that time). Is this possible in Inquisite 6? Best, Max /beginresponsetime is what you need: https://www.millisecond.com/support/docs/v6/html/language/attributes/beginresponsetime.htm Depending on how you want the trial to behave after response -- i.e. continue to show the remaining stimuli or not -- you may also need /responseinterrupt: https://www.millisecond.com/support/docs/v6/html/language/attributes/responseinterrupt.htm Thanks, that worked!
	Reply Like 3