implementing GNAT

[Matthew Paul]

Hi,

In your List object where your conditions are defined add a column
called "CorrectResp" and then next to each condition of your experiment,
have the required key press response listed.  For no-response, simply
leave the cell blank.

Then in your procedure, have the object that collects the response
(slide, TextDisplay or whatever) refer to the above List column for the
appropriate correct response.  You do this by adding the text
"[CorrectResp]" into the 'Correct' cell of the object's properties (the
square brackets tell E-Prime to look to a List item for the response.)

When the experiment runs and a response is expected, the program will
look to see what the response should be according to the CorrectResp
cells and then code your data accordingly.

Matthew

---------------------------------------
Matthew Paul
Centre for Cognitive Neuroscience
School of Psychology
University of Wales, Bangor
Gwynedd
LL57 2AS
United Kingdom

www.psychology.bangor.ac.uk
e-mail:  m.paul at bangor.ac.uk
tel:     +44 1248 38 3832
fax:     +44 1248 38 2599
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-----Original Message-----
From: eprime at mail.talkbank.org [mailto:eprime at mail.talkbank.org] On
Behalf Of C.Bonnemayer at DMKEP.unimaas.nl
Sent: 03 March 2004 15:19
To: eprime at mail.talkbank.org
Subject: implementing GNAT

Hi all,

I'm trying to implement a Go -NoGo Association Task (GNAT) as described
by
Nosek, B. A., & Banaji, M. R. When a stimulus belongs to the target
category
subjects have to press a key (go) and they have to do nothing if it
belongs
to an other category (no-go). So a "key pressed" as wel as a "no key
pressed" can be correct answers. Does anybody has a suggestion how to
implement this in E-Prime?
Thanks in advance,
C. Bonnemayer

Maastricht University
Dept. of Medical, Clinical and Experimental Psychology
P.O. Box 616
6200 MD Maastricht
The Netherlands
p: +31 (0)43 3882486
f: +31 (0)43 3884155
w: http://www.dmkep.unimaas.nl/