Standard tasks implemented in OpenSesame (requests welcome)

sebastiaan

Update: The standard-tasks page is no longer updated, and only available in older versions of the documentation. We're thinking about a better way to allow people (you!) to distribute their experiments.

Over the past few weeks, a number of people have indicated that there is demand for a central place to host standard tasks that have been implemented in OpenSesame. Things like a stroop task, an implicit association task, a Posner cuing task, etc. Any kind of well known, commonly used task. To accommodate this need, I have added a page to the OpenSesame documentation site:

• http://osdoc.cogsci.nl/3.0/standard-tasks/

Adding your task

I have added the two tasks that I know of ( @filo and @Papi, thanks!), but of course the list should be much longer! Therefore, if you have implemented a task that you feel has a high re-use potential, we want to know about it! You can have your task included in the list in two ways:

1. Edit the standard-tasks page on GitHub, add your experiment, and send a pull request. To do this, you need to have a GitHub account.
   • The standard-tasks page on GitHub: https://github.com/smathot/osdoc/blob/master/content/standard-tasks.md
   • Instructions on how to edit a page: http://osdoc.cogsci.nl/contribute/documentation
2. Or drop a note in this discussion to let us know about your experiment.

Please provide the following information:

1. A description of your task.
2. A (list of) developer(s).
3. A URL where people can download the task.
4. Citation information.
5. A license, such as the GPL-3.

Making a request

If there is a standard task that you'd like to see implemented in OpenSesame, feel free to make a request here. Note that, especially in the beginning, the chances of anyone actually having implemented your task in a re-usable way may not be very big. Therefore, please also consider implementing the task yourself and sharing it, as described above!

NPHatton

Hi, I am new to Opensesame. What I am looking for is a simple Duration Reproduction Task, in order to record perception of Suprasecond Reaction Time Intervals (ie at 1.1, 2.2 and 3.3 seconds). I'm sure this is acheivable on the software and I will have a go myself, but as a complete novice if anybody has anything to share this would be greatly appreciated.

MichaelPi

I'm working on (Hebrew) versions of:
Implicit Association Test (IAT), Brief IAT (BIAT), Single-target IAT (ST-IAT), Affective Misattribution Procedure (AMP), Sorting Paired Features task (SPF), and Evaluative Priming (EP).
If anyone is willing to publish their code as a starting point it would be greatly appreciated.
I will post the completed tasks as they reach 'stable' status here and also at Yoav Bar Anan's webpage.
Michael

lironi

Hello everyone,

I'm looking for a task switching, which deals with a cognitive flexibilty function. Is there any task here that can be adapted...?

Thanks in advance,
Liron

kris

I'm looking for examples of inhibition tasks, specifically, the Stroop and antisaccade tasks. Has anyone done these types of tasks on Open Sesame? If so, appreciate any help!

Satansteddybear

Hi, I'm struggling to create this. Trying to recreate this task for my dissertation ... A reference line (10 long and 0.05 large) was flashed on the screen for 500 ms, followed by a target dot displayed for 200 ms. In order to prevent observers from expecting the
line to be located at a particular spot on the screen, the position of the reference line was counterbalanced among 5 possible foveal locations: in the center, 1.5 or 3 either side of the center. The relative position of the target dot was also counterbalanced among four positions: 0.05 or 1 either side of the reference line. In the ‘‘horizontal axis discrimination’’ condition, observers had to press on the left or right arrow of the keyboard if the dot appeared respectively on the left or right side of the vertical reference line. In the ‘‘vertical axis discrimination’’ condition, observers had to press on the ‘‘up’’ or ‘‘down’’ key whenever the dot was flashed above or below the horizontal reference line, respectively. In order to prevent subjects from synchronizing their reaction
times to the pace of the stimulus presentation, the interstimulus interval (ISI) could randomly take the four following values: 500, 700, 900 or 1100 ms.

Brochard, R., Dufour, A., & Despres, O. (2004). Effect of musical expertise on visuospatialabilities: Evidence from reaction times and mental imagery. Brain and Cognition, 54, 103-109

HELP!!

sebastiaan

@Satansteddybear What you're describing is not a standard task, such as the stroop, but something very specific. I doubt that anyone will give you a fully functioning experiment that does exactly this!

I would first start by familiarizing yourself with OpenSesame by walking through a tutorial, and see how far you get. Then, if you get stuck, feel free to open a new discussion with specific questions.

• http://osdoc.cogsci.nl/tutorials/step-by-step-tutorial/

Good luck!
Sebastiaan

alebedev

Hi everyone!
I would be very happy to see any of the N-back tasks implemented in OpenSesame. I have just started working on one (http://www.cogsci.nl/forum/index.php?p=/discussion/1342/n-back-task) and would really appreciate your help...

Best,
Alex

bbaribau

I'm currently working on a two-button version of a Continuous Performance Test (CPT), a classic sustained attention task. I haven't used github before but I'll figure out how to upload in a week or two when the task is finalized

panos_uol

Hi all. I am currently working on building an Alcohol-Stroop Task. I realize this is specialized for alcohol research only, but it is a quite common task for that field of research. However I haven't published the article yet. I saw that most of the standardized tests you already have come with a citation. Is a publication necessary before I can add this?

Many thanks!

sebastiaan

Hi @panos_uol,

Great that you want to contribute!

Is a publication necessary before I can add this?

Absolutely not. Adding a citable publication is just a way to get extra credit for yourself. What you could do is add the task right now without a publication, in which case it can just be cited as a software package. And you can always change the citation information later, if and when a paper becomes available.

Cheers,
Sebastiaan

cpollack

Hi Everyone!
I'm looking for a backward digit span task to measure working memory. If anyone has something to share, I'd be grateful. Regardless, I'd be happy to share the task when I build it myself.
Thanks!
courtney

earcanal

I'm about to develop a dot-probe/attentional bias modification (ABM) task. Grateful for any existing code/advice.

christianhigton

@earcanal
semi 'standardised' version of the visual dot probe task.
Hopefully this is the right place to post this task and video and it will be useful to someone, a version of this was conducted as part of and undergraduate dissertation.

This is a semi 'standardised' version of the visual dot probe task ( I show you in the video how to make the standard one)
for more information please see

(Higton, 2015)

Higton, C. (2015). A standardised visual Dot-probe Task. Birmingham: Newman University.
Based on Mathews, A., & MacLeod, C. (2002). "Induced processing biases have causal effects on anxiety". Cognition & Emotion 16 (3): 331–354. doi:10.1080/02699930143000518.
https://mega.co.nz/#!El50AQra!mgKo8hk-4JjTQMYNFARir0CTyM5CHuhaYhvqVzAXs-Q
License: GPL-3.

Thanks
Chris

earcanal

Thanks Chris. My version of the dot-probe/attentional bias modification (ABM) is pretty much done now, but it's good to know of others and was worth writing to get over the initial learning curve. I recently discovered there's also an open Java version (MacLeod et al., 2007).

MacLeod, C., Lih, Y. S., Elizabeth, M. R., & Lynlee, W. C. (2007). Internet-delivered assessment and manipulation of anxiety-linked attentional bias: Validation of a free-access attentional probe software package. Behavior Research Methods, 39(3), 533–538. http://doi.org/10.3758/BF03193023

CoreyB

Hi all,

I'm new to using OpenSesame and am a complete novice with Python/ coding in general. I'm currently trying to build the Sternberg task. The issue I'm running in is not being able to get each item (in this case letters, i.e. "X", "Q", etc.) in the remember list to be presented individually. I believe I have the rest of the design setup, this is the part I'm having difficulty with. Any help would be appreciated.

Best regards,

Corey

For design reference:
Sternberg, S. (1966). High-speed scanning in human memory. Science, 153(3736), 652-654

yrose

Hi everyone,
I am new to OpenSesame, and would like to start with an AXB task. Thank you for any script/pointer you might have!

Best regards,
Yvan

Russell

Hi all,
I'd appreciate hearing from anyone who's programmed a Rayner-style gaze contingent 'boundary paradigm' reading study...or any priming study where sentence-length stimuli change while the participant is looking at them.
Thanks,
Russell

Hanna

Hi,

I am currently working on a cross-modal oddball task and would be grateful to hear from anyone who has built any similar program.

In more detail, my program will start by showing a fixation cross and play a 400 ms-long sound (one of two deviant sounds at 20 % of trials; standard sound at 80% of trials). Immediately after, an image (one of two, each displayed at 50% of trials) will be shown for 200 ms. The fixation cross is then displayed again, and the participant has 1000 ms to give the correct answer (categorizing the image by pressing a button) before the next trial starts.

Kind regards,
Hanna

kcorbeil

Hello,

I am a new Open Sesame user and am interested in accessing this collection of standardized tasks, but I get a 404 error when I try to open the OP's link. Is there still a way to access it?

Thank you!
Kate

sebastiaan

Right, that page has been removed. But you can still find it in the 3.0 documentation (I'll update the link):

• http://osdoc.cogsci.nl/3.0/standard-tasks/

This is more-or-less a failed initiative though. We're still thinking about a good way to allow people to distribute their experiment, but this standard-tasks page didn't really do the job.

MichaelPi

I know it's been deprecated but, I'll leave here a link to my take of the implicit association test (IAT), in case someone finds this post while looking for the old page..
It was designed with adaptability in mind, so you could modify the template for your purposes very easily. It offers several improvements over other IAT versions found at the time of writing, such as better randomization of stimuli, optional secret skip-sequence shortcut key to make development and testing easier, arbitrary ITI, arbitrary number of stimuli per category, using both images and words as stimuli, optional feedback on error, optional error correction, and much more. You should check it out and compare...

• Developer: Michael Pinus
• URL: https://osf.io/v8yaj/
• License: [MIT]
• Citation: Pinus, M., & Bar-Anan, Y. (2017, January 24). An IAT Template for OpenSesame. http://doi.org/10.17605/OSF.IO/V8YAJ

sebastiaan

Thanks for sharing!

Knante

@MichaelPi

That is an amazing template, thank you so much for this!

Carine

Hi,
I am new to OpenSesame and would like to design a Finger Tapping Task experiment. Anyone around with a script for this kind of test?
Thanks for the help.
C.

sebastiaan

@MichaelPi Thanks. It does indeed look very good!

Fyi. It's currently a bit inconvenient to open public repositories directly in OpenSesame, through the OSF extension. To do so, you need to fork the project. We'll try to make this more user-friendly in the future.

(And of course you can just download the experiment through the OSF website too.)

Lisildur

Hi . I am new to OpenSesame . I would like to design a new Stroop task . Anyone can help me in the first steps ?

eduard

Hi,
If I am not mistaken, there is a stroop task on osf: https://osf.io/d2ecb/

Eduard

arash_mon

@eduard I can't open it! 😐️

eduard

Yeah, it has been written for an old version of Opensesame. So, unfortunately, this repository won't help you probably. But Stroop is rather easy to implement. So maybe you can just give it a go, and let us know if you get stuck?

Eduard