Adaptation of an n-back task

[Beta]

Dear Gaynor: 

The n-Back task can be accomplished in one experiment by using E-Basic
script.  It is not necessary to create separate experiments for each
subject. 
 
In the current beta, the n-Back is done by creating a Queue data
structure to store and retrieve exemplars.  The Queue can either be
created as an array or as a user-defined type.  The Queue structure that
will work best for you will likely be dependent on the selection
constraints you have set for your specific n-Back paradigm. 

If you would like to contact E-Prime technical support via e-mail at
beta at pstnet.com,  we would be happy to offer you a sample experiment to
illustrate how the Queue structure is created and used via E-Basic
script.  At that time, a brief explanation of the constraints of your
experiment would help us point you in the right direction.

We look forward to hearing from you.

Sincerely, 

Sara Burgess 
Technical Consultant 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Psychology Software Tools, Inc. 
2050 Ardmore Blvd. 
Pittsburgh, PA 15221-4610 
USA 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
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-----Original Message----- 
From: Gaynor Evans [mailto:psrcg at csv.warwick.ac.uk] 
Sent: Tuesday, February 20, 2001 9:30 AM 
To: 'Eprime mail-list' 
Subject: Adaptation of an n-back task 


Hello 
I am currently trying to create an n-back memory task in e-prime, where
the subject will be presented with a series of letters and they must
decided whether each letter is the same or different to the letter they
saw three letters previously. As far as my understanding goes, the only
way in which I can achieve this is by having a separate e-prime
experiment for each subject. Does anyone know of a more economical way
of doing this?
Thanks for your time 
Gaynor Evans 
PhD student 
Department of Psychology 
University of Warwick 
Coventry 
West Midlands 
UK 
CV4 7AL