Randomization of images

Sat Oct 15 11:06:27 UTC 2011

Thank you Meltem and Michiel. I made an array and then used the randomized
arrray. it worked perfectly.

Best Wishes,

Gautam Malu

On Fri, Oct 14, 2011 at 7:26 PM, Michiel Spape <
Michiel.Spape at nottingham.ac.uk> wrote:

> Hi,****
>
> Meltem is quite right, although people usually call it nested lists.
> Generally, you can go two ways:****
>
> 1.****
>
> Have a set of 20 stimuli selected within a list from a nested list, e.g.**
> **
>
> List1: 60 stimuli, attribute myStimuli, set to randomise.****
>
> List2: calls List1, and in attribute currentStimulus, set numero uno to
> [myStimuli:1] to select the first one from List1… after randomisation. The
> clever thing is that the randomisation of List1 only needs to occur once and
> you’re done. Probably no inline necessary. Whether you’ve got one or more
> attributes to call your jpeg isn’t important, because they can be
> concatenated to one. For instance, if we have instead of myStimuli,
> “aNumber”, “leftright”, “andsoon” and have a row in the list saying,
> respectively, “1” “right” “pose.jpg”, then this can be combined using
> another attribute (say, “filename”) as [myStimuli]_[leftright]_[andsoon] and
> eprime will just combine it all.  ****
>
> ** **
>
> 2.****
>
> Code all your stimuli into one array with 60 stimuli, randomizearray, and
> go from there.****
>
> ** **
>
> Best,****
>
> Mich****
>
> ** **
>
> ** **
>
> ** **
>
> *Michiel Spapé*
>
> *Research Fellow*
>
> *Perception & Action group*
>
> *University of Nottingham*
>
> *School of Psychology*
>
> *www.cognitology.eu***
>
> ** **
>
> *From:* e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] *On
> Behalf Of *Meltem BALLAN
> *Sent:* 14 October 2011 14:42
> *To:* e-prime at googlegroups.com
> *Subject:* Re: Randomization of images****
>
> ** **
>
> BTW you can also google it as sub-list e-prime or something like that. I am
> sure PST forum or this list discussed this or similar topics before.
> Meltem****
>
> On Fri, Oct 14, 2011 at 9:39 AM, Meltem BALLAN <meltemballan at gmail.com>
> wrote:****
>
> Gautam,
> I have an idea. You can prepare two lists (one for the right and the left
> and second for the middle images). Then, you might want to call those files
> (edit->properties->startup info). Lets say for session 1
>  call fileLR and shuffle the list (list properties->order->random).
> In order to show 20 models you can count to 20 and jump to the end of
> session (I would use goto)
> repeat it for session 2 including the middle images.
> I hope it helps.
> Meltem****
>
> ** **
>
> On Fri, Oct 14, 2011 at 8:56 AM, Gautam Malu <
> gautam.malu at research.iiit.ac.in> wrote:****
>
> Hi all,****
>
>           i am developing a simple face recognition task.  i am using
> picture stimuli. I have images of 20 models , 3 images per model so total
> 3*20 = 60 images.****
>
> 1_right_pose.jpg****
>
> 1_left_pose.jpg****
>
> 1_middle_pose.jpg****
>
>  ............................ total 60 images****
>
> Experiment consists of 2 phases****
>
> ** **
>
>  -->1st in learning phase, in which participants will see 2 poses of any 10
> models.****
>
> i.e total 2*10 = 20 images randomly each images for 3000ms****
>
> n_right_pose.jpg ****
>
> m_left_pose.jpg****
>
> ** **
>
> .......total 20 images ****
>
> ** **
>
> ---> 2nd is testing phase, In which participants will see all 20 model in
> middle pose, randomly  for 500ms, followed by fixation of infinite duration
> and during which they have to respond whether or not  they have seen that
> model in learning phase.****
>
> n_middle_pose.jpg****
>
> fixation.jpg****
>
> ...........20 times****
>
> ** **
>
> ** **
>
> now the problem i am facing is how to select 10 random model's both
> right_pose.jpg and left_pose.jpg and also display them in random order. **
> **
>
> how can i get this type of ordering in learning phase****
>
> Example****
>
> 3_right_pose.jpg****
>
> 7_left_pose.jpg****
>
> 11_left_pose.jpg****
>
> 3_left_pose.jpg****
>
> ** **
>
> ** **
>
> ** **
>
> Thanks,****
>
> ** **
>
> ** **
>
> ----****
>
> Gautam Malu****
>
> ** **
>
> --
> You received this message because you are subscribed to the Google Groups
> "E-Prime" group.
> To post to this group, send email to e-prime at googlegroups.com.
> To unsubscribe from this group, send email to
> e-prime+unsubscribe at googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/e-prime?hl=en.****
>
>
>
> ****
>
> --
> Meltem Ballan, PhD
> Department of Psychiatry, CB# 7160
> University of North Carolina School of Medicine
> 7023 Neurosciences Hospital
> Chapel Hill, NC 27599-7160****
>
>
>
>
> --
> Meltem Ballan, PhD
> Department of Psychiatry, CB# 7160
> University of North Carolina School of Medicine
> 7023 Neurosciences Hospital
> Chapel Hill, NC 27599-7160****
>
> --
> You received this message because you are subscribed to the Google Groups
> "E-Prime" group.
> To post to this group, send email to e-prime at googlegroups.com.
> To unsubscribe from this group, send email to
> e-prime+unsubscribe at googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/e-prime?hl=en.****
>
>  This message and any attachment are intended solely for the addressee and
> may contain confidential information. If you have received this message in
> error, please send it back to me, and immediately delete it. Please do not
> use, copy or disclose the information contained in this message or in any
> attachment. Any views or opinions expressed by the author of this email do
> not necessarily reflect the views of the University of Nottingham.
>
> This message has been checked for viruses but the contents of an attachment
> may still contain software viruses which could damage your computer system:
> you are advised to perform your own checks. Email communications with the
> University of Nottingham may be monitored as permitted by UK legislation.
>
> --
> You received this message because you are subscribed to the Google Groups
> "E-Prime" group.
> To post to this group, send email to e-prime at googlegroups.com.
> To unsubscribe from this group, send email to
> e-prime+unsubscribe at googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/e-prime?hl=en.
>

-- 
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com.
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com.
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listserv.linguistlist.org/pipermail/eprime/attachments/20111015/8ef2156e/attachment.htm>