If ... Then ... Else (problems) "former" Do ... Loop

[ben robinson]

trial timeline:

BeginningOfTrialLabel
Fixation
StimA
Mask
StimA'
Mask
Inline:
Select Case StimA'.RESP
   Case 0 'no change - end this trial so we can start the next trial
      Goto EndOfTrialLabel
   Case 1 'change detected (correctly or incorrectly, doesn't matter) - ask
participant in which quadrant the change was detected
      Goto LocalizationLabel 'this label is actually unnecessary, and i've
only included it for clarity
   Case Else 'no response detected - keep flickering the same trial until a
response is detected
      Goto BeginningOfTrialLabel
End Select
LocalizationLabel
LocalizationScreen - "In which quadrant did you note the change?"
EndOfTrialLabel

On Jan 30, 2008 7:53 PM, Peter Quain <pquain at une.edu.au> wrote:

>
> I'm using as yours advice an If … Then Statement and I add an Else (like
> this):
>
>
>
> *If RealStimulus.ACC Or AlterStimulus.ACC = 0 Then
> *
> *            Goto Label1
> *
> *Else
> *
> *            Goto Label2
> *
> *End If
> *
>
>
>
> for a start, I think the 'Or' syntax should be ... If RealStim.ACC = 0 Or
> Alter.Stim.ACC = 0 Then ...
>
> But, shouldn't you test the RESPONSE (1 or 0) against the stimuli match
> condition (same or different)?
> maybe *something *like this...
>
>         If Object.RESP = 1 And Condition = 'same' Then
>                  GoTo Label1
>         ElseIf Object.RESP = 0 And Condition = 'same' Then
>                  GoTo Label2
>         ElseIf Object.RESP = 0 And Condition = 'different' Then
>                  GoTo Label1
>         ElseIf Object.RESP = 1 And Condition = 'different' Then
>                  GoTo Label1
>         End If
> >
>
>
>
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> 29/01/2008 9:51 AM
>
>

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