[pymvpa] Pkg-ExpPsy-PyMVPA Digest, Vol 55, Issue 15

Wed Sep 19 16:39:38 UTC 2012

Hi Michael,

I checked the version and looks like:

>>> scipy.version.version
'0.10.1'

I downloaded it from here and installed it on my machine:
http://sourceforge.net/projects/scipy/files/scipy/0.10.1/scipy-0.10.1-py2.7-python.org-macosx10.6.dmg/download

Thanks for helping get to the bottom of this error- lemme know what you
suggest!

Best,
Bruna

On Wed, Sep 19, 2012 at 5:00 AM, <
pkg-exppsy-pymvpa-request at lists.alioth.debian.org> wrote:

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> Today's Topics:
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>    1. Re: Eyetracking analyses in PyMVPA (Michael Hanke)
>    2. Re: Eyetracking analyses in PyMVPA (Michael Hanke)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 19 Sep 2012 13:16:10 +0200
> From: Michael Hanke <mih at debian.org>
> To: Development and support of PyMVPA
>         <pkg-exppsy-pymvpa at lists.alioth.debian.org>
> Subject: Re: [pymvpa] Eyetracking analyses in PyMVPA
> Message-ID: <20120919111610.GI24222 at meiner>
> Content-Type: text/plain; charset=us-ascii
>
> Hi,
>
> I'm CC'ing Florian, who contributed these examples originally -- maybe
> he has some ideas...
>
>
> Cheers,
>
> Michael
>
>
> On Mon, Sep 17, 2012 at 03:53:36PM -0700, Bruna Martins wrote:
> > Hi There,
> >
> > I am a complete newbie to PyMVPA, and currently doing an eyetracking
> study.
> > I'm currently navigating the eyetracking tutorial, but wanted to get your
> > pearls as well- thanks for your patience in advance.  My study has a
> > within-subjects design, where each trial is either condition A or B, and
> > we're looking at gaze differences between the conditions. Stimuli are
> > randomly presented either on the left or the right side of the screen, so
> > the analysis is a little complex . I am hoping to do two different
> things:
> >
> > 1. Input difference scores between  (Xcoord- Xcenter)  and (Ycoord-
> > Ycenter) for each trial- there will be a different number of trackable
> > instances for each timepoint (depending on whether track was lost, blink
> > frequency, etc) to predict condition A vs B
> >
> > 2. Input a scalar value indicating the percentage of time spent within
> the
> > stimulus area of interest on the screen (ie, 0.70 = on the stimulus for
> 70%
> > on stimulus), for each trial, and again predict whether the trial was of
> > condition A or B, but this time have one value per trial
> >
> > I was wondering how you would recommend approaching the two analyses
> > outlined above.
> >
> > Thanks so much for your help,
> > Bruna Martins
> >
> >
> > --
> > *Bruna S. Martins*
> > *
> > *
> > Ph.D. Student- Clinical Psychology
> > Emotion & Cognition Lab- Gero 341
> > University of Southern California
> > (213) 821- 5701
>
> > _______________________________________________
> > Pkg-ExpPsy-PyMVPA mailing list
> > Pkg-ExpPsy-PyMVPA at lists.alioth.debian.org
> >
> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa
>
>
> --
> Michael Hanke
> http://mih.voxindeserto.de
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 19 Sep 2012 13:18:03 +0200
> From: Michael Hanke <mih at debian.org>
> To: Development and support of PyMVPA
>         <pkg-exppsy-pymvpa at lists.alioth.debian.org>
> Subject: Re: [pymvpa] Eyetracking analyses in PyMVPA
> Message-ID: <20120919111802.GJ24222 at meiner>
> Content-Type: text/plain; charset=us-ascii
>
> On Mon, Sep 17, 2012 at 04:26:55PM -0700, Bruna Martins wrote:
> > I tried out the eyetracking tutorial, and ran into an error when running
> > the down-sampling step:
> >
> > >>> ds = fft_resample(raw_ds, 100, window='hann',
> > ...                   chunks_attr='trial', attr_strategy='sample')
> > python(2418) malloc: *** error for object 0x7fbad35fc008: incorrect
> > checksum for freed object - object was probably modified after being
> freed.
> > *** set a breakpoint in malloc_error_break to debug
> > Abort trap: 6
>
> This looks like something in SciPy is exploding. Can you give some mre
> details on your system, what version of Scipy, how you installed it...
>
> Michael
>
> --
> Michael Hanke
> http://mih.voxindeserto.de
>
>
>
> ------------------------------
>
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> End of Pkg-ExpPsy-PyMVPA Digest, Vol 55, Issue 15
> *************************************************
>

-- 
*Bruna S. Martins*
*
*
Ph.D. Student- Clinical Psychology
Emotion & Cognition Lab- Gero 341
University of Southern California
(213) 821- 5701
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