Millisecond Forums

> however when i separately declare "stimulusitem2, stimulusitem3" etc. in data, it gives warnings and doesn't appear to record that data.

You don't declare stimulusitem2, stimulusitem3, etc. You simply declare additional stimulusitem columns, without any numbering, as detailed in the documentation: https://www.millisecond.com/support/docs/v5/html/language/attributes/columns.htm

/ columns = (date time values.blockstarttime values.blocktimestamp group subject blocknum trialnum blockcode trialcode pretrialpause posttrialpause trialduration trialtimeout response latency stimulusnumber stimulusitem stimulusonset stimulusnumber stimulusitem stimulusonset stimulusnumber stimulusitem stimulusonset stimulusnumber stimulusitem stimulusonset ...)

I am now having a problem where when i'm declaring the data columns (see below), the stimulusnumber/item/onset only appears for the first stimulus and no longer includes stimulusitem2-6 (perhaps also because each block has a different number of stimuli appearing on each trial), however when i separately declare "stimulusitem2, stimulusitem3" etc. in data, it gives warnings and doesn't appear to record that data.
<data>
/ columns = (date time values.blockstarttime values.blocktimestamp group subject blocknum trialnum blockcode trialcode pretrialpause posttrialpause trialduration trialtimeout response latency stimulusnumber stimulusitem stimulusonset)
</data>
thank you for your help!!
 

thank you!

You can log the given <block> element's timestamp properties or the current time at the start of a given block. Something like

<values>
/ blockstarttime = -1
/ blocktimestamp = -1
</values>


<block a>
/ onblockbegin = [
values.blockstarttime = script.currenttime;
values.blocktimestamp = block.a.timestamp;
]
/ trials = [1-4 = mytrial]
</block>

<block b>
/ onblockbegin = [
values.blockstarttime = script.currenttime;
values.blocktimestamp = block.b.timestamp;
]
/ trials = [1-4 = mytrial]
</block>

<trial mytrial>
/ posttrialpause = 500
/ stimulusframes = [1=mytext]
/ validresponse = (57)
</trial>

<text mytext>
/ items = ("Press SPACE")
</text>

<data>
/ columns = (date time subject group blocknum blockcode values.blockstarttime values.blocktimestamp trialnum trialcode stimulusitem response latency correct)
</data>