Joystick direction as response & RT

Wed Feb 3 11:19:10 UTC 2010

Hi,
Well - I do actually have script that gets you to run an XBOX-360 controller (convenient, because they connect using USB and Microsoft tends to release source-code for drivers of such things) on one computer which then connects with a serial cable to another one running E-Prime? It's even able to send continuous data from the various buttons and sticks on the XBOX, AND can receive commands to make it vibrate! Groovy!
Best,
Mich

Michiel Spapé
Research Fellow
Perception & Action group
University of Nottingham
School of Psychology

-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of David McFarlane
Sent: 02 February 2010 16:28
To: e-prime at googlegroups.com
Subject: Re: Joystick direction as response & RT

Nick,

Fair question, and sadly the answer is no, I have not yet had any 
experience whatsoever with modern joysticks in E-Prime.  And if the 
past is any guide, my saying that means that, almost certainly, one 
of the labs here is just about to bring me such a project...

But hey, as I keep saying, that's what PST Web Support is for, so 
please contact them post haste at 
http://support.pstnet.com/e%2Dprime/support/login.asp , they strive 
to respond to all requests in 24-48 hours.  And if you do get an 
answer from PST Web Support, please do us all the favor of posting 
their reply back here.

Regards,
-- David McFarlane, Professional Faultfinder

At 2/2/2010 11:05 AM Tuesday, Nick wrote:
>Hi David,
>
>Thanks for the interesting suggestion.  I think we're kinda locked
>into trying to figure something out with the existing joysticks we
>have before buying other equipment though. Also, I am not so sure that
>I could pull off the the custom cable and connections in the near
>future having never done anything like that before.  The frustrating
>thing is that my colleague and I have our procedure ready to go except
>for this data recording issue. Would you have any suggestion of in-
>line script that might be able to accomplish the recording of first
>direction & RT by any chance?
>
>On Feb 1, 3:21 pm, David McFarlane <mcfar... at msu.edu> wrote:
> > This old geezer cannot quite resist chiming in with some useless
> > thoughts.  If I only wanted to detect when a subject pushed a
> > joystick forward or backward (and not how far or fast), then I would
> > go to eBay and purchase a simple old four- or eight-position Atari or
> > Commodore style joystick, or even better, an arcade game joystick
> > that used good quality micro switches.  These gave simple off-on
> > switch closures when the user pushed the stick to a side or
> > corner.  Then I would build a custom cable to go from the appropriate
> > switches directly to an old parallel printer port or an added digital
> > I/O card.  Then in E-Prime I would use the Port device, or the
> > ReadPort function from script.
> >
> > Ah for the days when the electronics were laid bare and the operating
> > system got out of our way...
> >
> > -- David McFarlane, Professional Faultfinder
> >
> >
> >
> > >I can certainly forgive it, but unfortunately that's not the problem.
> > >I can get E-Prime to recognize the joystick and record certain
> > >responses (e.g. button click and concomitant RT), but I can't get it
> > >to record the direction of first movement and the RT of that response.
> >
> > >On Feb 1, 11:00 am, liwenna <liwe... at gmail.com> wrote:
> > > > I hope you can forgive me if this is is a really silly question but:
> > > > did you add a 'joystick' to the devices in the experiment properties?
> > > > (e-prime logo at the top of your experiment tree).
> >
> > > > On Feb 1, 5:15 pm, Nick <ndla... at gmail.com> wrote:
> >
> > > > > Hi everybody,
> >
> > > > > I am trying to interface a Logitech Attack3 joystick with E-Prime. So
> > > > > far I have only had limited success although I think it should be
> > > > > pretty simple to do what I need.
> >
> > > > > On each trial, the participants will have to respond to the final
> > > > > slide with a forward or backward movement of the joystick (depending
> > > > > on the trial type). All I need is 1) for E-Prime to record the
> > > > > Reaction Time of when the the push or pull of the joystick is
> > > > > initiated (in correspondence to the onset of the final slide for each
> > > > > trial) and 2) for the direction (up or down) of the first joystick
> > > > > movement to be recorded to the data file.
> >
> > > > > It seems like this should be pretty standard, but I can't find any
> > > > > code that addresses it. Is there some code you might know of to do
> > > > > this type of thing?
> >
> > > > > Also, I did read through previous posts attempting to solve this
> > > > > problem with continuous sampling of the joystick X-Y coordinates, but
> > > > > I couldn't get the posted code to work out.  Although I don't like
> > > > > this solution quite as much for my purposes, any help with how to
> > > > > continuously sample the X-Y coordinates would also be very
> > > > > appreciated.
> >
> > > > > Thanks!
> > > > > Nick

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