Jumps, labels and input masks

[Rachel Mitchell]

Hi Leisha

In the trial procedure line, there are separate slides straight after each
other (1.5sec each) for 25% intensity, 50%, 75%, 100%, 125% and 150%.
Participants are instructed to press the appropriate response key as the
emotion evolves, as soon as they've made their mind up.
Theoretically participants could have made their decision during any of
these slides, so each one is programmed to jump to label1 following a
response.
Label1 is positioned at the end of the trial procedure line.
After this is a 1.5sec wait screen for my ISI.
The programme then goes back to the trial list (there is a single trial list
on the session procedure line, with no block lists) and randomly selects
another trial/series.

I just tried making the response time infinite for the 150% screen to force
them to respond, but I got the same error after a while (although at least
the programme got a little further this time!).

Someone kindly suggested the problem was because the jump command didn't
know what to do if participants didn't respond - and suggested I try and
incorporate a feedback screen, remove all text from it, and set the input
object name to the stimulus. 
I tried setting it to the last screen (the 150%), but this didn't work (I'm
not quite sure I was interpreting their suggestion correctly though, or that
I had described my task sufficiently).

This task is being used for a patient study and we have so little time left
I am very grateful to those who have responded.
Does the further description above give you any ideas Leisha?

With best wishes
Rachel 


--------------------------------------------------------
Dr Rachel L. C. Mitchell.
Lecturer in Cognitive Psychology, University of Reading.
Honorary Research Fellow, Institute of Psychiatry.
Research Psychologist, Berkshire Healthcare NHS Trust.

Correspondence Address:
School of Psychology and Clinical Language Sciences,
Whiteknights Road
University of Reading
Reading
Berkshire
RG6 6AL

Tel: +44 (0)118 378 8523
Direct Dial: +44 (0)118 378 7530
Fax: +44 (0)118 378 6715
----------------------------------------------------------------------- 
-----Original Message-----
From: eprime at mail.talkbank.org [mailto:eprime at mail.talkbank.org] On Behalf
Of Leisha Wharfield
Sent: 04 April 2006 18:02
Cc: Eprime mailing list
Subject: Re: Jumps, labels and input masks

How does your stimulus object end? Does it end by jumping somewhere, does it
time out, or does it end when the subject inputs their response?

Leisha Wharfield
Decision Research
Eugene, Oregon, USA

Rachel Mitchell wrote:

>Hello all
>
>I keep getting an error when trying to run my programme and I don't 
>know why it is occurring and what I need to do about it.
>
>In summary, in my paradigm participants see a series of increasingly 
>intense facial emotion pictures 0, 25%, 50%, 75%, 100% and so on).
>Participants have to press a response key as soon as they've decided 
>what emotion is emerging.
>It works fine, apart from when participants don't make a response for 
>that trial/series.
>Then I get this error message......
>Run-time Error (Line 830)
>11016: Application-defined or object-defined error
>
>And the script box highlights....
>	
>	''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
>	'	Label - Label1 BEGIN
>	''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
>
>Label1:
>	If Err.Number = ebInputAccepted Then
>		Err.Clear
>		Resume Label1Resume
>	ElseIf Err.Number <> 0 Then
>		'NOTE: If you receive a runtime error here, it
>		' is because a runtime error other than ebInputAccepted
>		' was thrown (ebInputAccepted for catching input masks that
jump).
>		'You are encouraged to either handle the error so that
>		' it is not thrown in the future or will have to set up
>		' your own error handler, which will also need to take
>		' into account for any input masks that jump.
>		'
>		'Raise the error so the default error handler will show the
message
>		Err.Raise Err.Number
>	End If
>
>Label1Resume:
>
>	''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
>	'	Label - Label1 END
>
>	''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
>Can anyone tell me what I have done wrong and what I need to do to 
>prevent the above?
>I should perhaps mention at this point, that I don't tend to use 
>in-line script.
>As far as I know, I have the latest version (service pack 3)
>
>Hoping someone can help
>
>With best wishes
>Rachel Mitchell
>
>--------------------------------------------------------
>Dr Rachel L. C. Mitchell.
>Lecturer in Cognitive Psychology, University of Reading.
>Honorary Research Fellow, Institute of Psychiatry.
>Research Psychologist, Berkshire Healthcare NHS Trust.
>
>Correspondence Address:
>School of Psychology and Clinical Language Sciences, Whiteknights Road 
>University of Reading Reading Berkshire
>RG6 6AL
>
>Tel: +44 (0)118 378 8523
>Direct Dial: +44 (0)118 378 7530
>Fax: +44 (0)118 378 6715
>-----------------------------------------------------------------------
>
>
>
>  
>