FLUX - Assessing Working Memory in Context


The FLUX software was developed to assess daily working memory fluctuations in children at the age of eight to ten years. More information about the FLUX research project can be found here.


The FLUX software allows presenting two working memory tasks to participants in their everyday lives via smartphone.


We conceptualize working memory as the ability to simultaneously store and process information in a controlled manner.


The two working memory tasks comprise either numerical or spatial updating operations and are presented in two different levels of difficulty (load 2, load3).


The tasks are embedded in a child appropriate story around a mascot named Sascha and other cartoon figures.


In both tasks accuracy of the given responses and total response time for each block is registered by the FLUX software and stored in movisensXS.


Numerical Memory Updating


Story: Sascha has candy in his bag. You have to remember how many pieces of each type of candy (e.g., chocolate, lollipop) are in the bag. Be careful, Sascha loses some candy and also receives new candy. Always update how much candy Sascha has currently in his bag until you are prompted to tell how much is in the bag.


In this task participants have to memorize and update one digit number by applying mathematical operations to the presented numbers.


Updating operations are additions and subtractions from -2 to +2.


In the load 2 condition, 2 digits have to be updated by a total of 3 updating operations.


In the load 3 condition, 3 digits have to be updated by a total of 4 updating operations.


One session contains 4 blocks of both difficulty levels.


For detailed instructions and screenshots click here.


Spatial Memory Updating


Story: Sascha has a radar to follow the little cartoon figures. Sascha can see their positions at the beginning of the game. During the game they move around. When they move, they change their position by one cell in the direction of the arrow. You have to remember where in the presented grid they are located and where they move until you are prompted to tell where they are in the grid.


In this task participants have to update positions of cartoon creatures presented in a four by four grid by remembering the positions of the presented creatures.


Updating operations are spatial shifts of the presented creatures by 1 cell in the grid in all possible directions as indicated by arrows in corresponding colors.


In the load 2 condition, the positions of 2 creatures have to be updated by a total of 3 updating operations.


In the load 3 condition, the positions of 3 creatures have to be updated by a total of 4 updating operations.


One session contains 4 blocks of both difficulty levels.


For detailed instructions and screenshots click here.

License


This application is freeware (only for academic purposes). It is not allowed to distribute or install the program or any separate components/files without downloading them from this website.


If you decide to use the FLUX software in your research work, please refer to it in your paper by citing the most recent publication as indicated on this website. For now, please refer to



Dirk, J., & Schmiedek, F. (2015, Sept.). Fluctuations in elementary school children's working memory performance in the school context. Journal of Educational Psychology. Advance online publication. doi: 10.1037/edu0000076. pdf available here.


Dalir, M., Rölke, H., Buchal, B. (2012, November). Android-based mobile assessment system. In G. Biswas, L.-H. Wong, T. Hirashima, & W. Chen (Eds.), Proceedings of the 20th International Conference on Computers in Education ICCE 2012 Singapur (370-377). Singapore: National Institute of Education, Nanyang Technological University. pdf available here.


If you decide to use the FLUX software for your research work, please send a short notice or comment before publication of your work to flux_download@dipf.de.


System Requirements


The FLUX software was developed using Android™ 2.2 and screen resolution of 800 x 480 pixels. The FLUX software runs under the movisensXS environment (when installed on an Android device (e.g., Smartphone or Tablet)) by following the installation instructions available on this website under Download tab.


By using the FLUX software in the movisensXS environment, the session names are passed on from FLUX to Movisens.