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measure button release time

juliane_d — Thu, 08 Mar 2018 11:16:42 GMT

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

RE: measure button release time

juliane_d — Thu, 08 Mar 2018 11:16:42 GMT

[quote]

[b]Dave - Thursday, March 8, 2018[/b]

[quote]

[b]juliane_d - Thursday, March 8, 2018[/b]

[/quote]

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.

[/quote]

thanks a lot, works nicely!

RE: measure button release time

Dave — Thu, 08 Mar 2018 09:56:42 GMT

[quote]

[b]juliane_d - Thursday, March 8, 2018[/b]

[/quote]