Time counter for less than 1 second

Thao Pham — Mon, 24 Feb 2020 13:46:41 GMT

In my experiment there is a block with 15 trials that participants need to response under time-pressure. To illustrate this pressure, I'm trying to set 'timeout' in each trial, ideally 850-950 milliseconds. However, the formats available for timer don't seem to allow this. When set to "ss:ms", and timeout == 850, the timer will show 01:01 and then start the counting.

Could you kindly suggest how I should overcome this or is there some thing else I should do other than using timer? Thank you in advance!

Thao

RE: Time counter for less than 1 second

Dave — Mon, 24 Feb 2020 13:46:41 GMT

+x[quote]

[b]Thao Pham - 2/24/2020[/b]
In my experiment there is a block with 15 trials that participants need to response under time-pressure. To illustrate this pressure, I'm trying to set 'timeout' in each trial, ideally 850-950 milliseconds. However, the formats available for timer don't seem to allow this. When set to "ss:ms", and timeout == 850, the timer will show 01:01 and then start the counting.

Could you kindly suggest how I should overcome this or is there some thing else I should do other than using timer? Thank you in advance!

Thao
[/quote]

<clock countdown>
/ format = "zzz"
/ timeout = 850
</clock>

<trial mytrial>
/ stimulusframes = [1=countdown]
/ validresponse = (57)
</trial>

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Time counter for less than 1 second

RE: Time counter for less than 1 second