Hi Team, Thanks in advance for any help. OS: Windows 10: PsychoPy version: 2020.1.3 What are you trying to achieve?: I am looking to create a 3-minute Psychomotor Vigilance Task (PVT), whereby the stimulus is a fast ‘stopwatch’ kind of clock that presents itself on screen and participants must …

No worries, it just makes posts much easier to read and more likely to get answers. This is a bit of a puzzle. An issue here is that you have ITIs.pop() in the “Start” field. That gets called once at the start of each routine, but then afterwards we don’t have any way of knowing what value was sele…

[image] Please surround python code with backticks Other When you include python code on this forum please put triple “backticks” like this ``` on the line before and the line after your code. If you’ve done it correctly then your code will appear in a grey box with corre…

Thanks for pointing this out, Michael. Apologies for not realising. Amended as appropriate and I will familiarise myself with forum conventions.

Thank-you, Michael. This worked a treat! I appreciate your swift responses.

Random inter-stimulus intervals

Builder

Michael August 6, 2020, 1:22am 2

Topic		Replies	Views
Randomising ISI in builder Builder timing , randomization	1	1334	November 25, 2020
How to randomize different breaks duration between two stimulus Builder timing , randomization	4	943	May 17, 2021
Time randomization for a stimulus in a routine Builder	17	8786	September 6, 2022
Randomized time interval for fixation cross presentation Builder	5	1730	January 28, 2021
Randomising Stimuli Duration Builder	4	171	April 1, 2025

Random inter-stimulus intervals

Related topics