No image available Behaviour Brain Research

Since 2000

No image available


Application status: release

WM3 Screenshot


WM3 is a computer program that is used to test the 2D mental rotation (Mental rotation task).

In a 2D mental rotation test, the subject is asked to compare two or more 2D objects (or images) and state if they are the same image or if they are mirror images or if they are completely different images. Commonly, the test will have pairs of images each rotated a specific amount of degrees (e.g. 20°, 75°, 140° or 180°). Some pairs will be the same image rotated, some will be different, and some will be mirrored.

Within this program, you can choose from four basic types of experiment (test). With these experiments we examine how quickly and accurately a person differs same (rotated) from different (mirror or completely different) images.

The images (stimuli) are created using a mathematical algorithm so that it is quite difficult to verbalize ("nonverbal" stimuli).

You can change a number of settings of the test, which affects the degree of difficulty of the test: a form of stimulus, stimulus presentation time, the length of the delay, the number of correct responses, test duration, the degree of similarity of target and non-target stimuli, the appearance of the screen during the experiment..

WM3 is Freeware software and is designed primarily for scientific and research purposes.

Background Database: Microsoft Jet 4.0 Database Engine (Access)

Language interface: Simplified English (default) or Croatian (hr-HR)

Help files: Simplified English (WM3.chm-default) + Croatian (WM3_HR.chm).

Working resolution: all screen resolutions  >=  640 x 480

Note: This product comes in two versions, depending on the form of the Windows operating system and installed Net framework system. Select version in accordance with the type of operating system that you have installed on your computer.

Version: 1.2


Software requirements for Version 1.2:

  1. OS Microsoft WINDOWS - Windows 7 Service Pack 1, Windows Server 2008 R2 SP1, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2,  Windows Vista SP2 (x86 and x64), Windows 7 SP1 (x86 and x64), Windows Server 2008 R2 SP1 (x64), Windows Server 2008 SP2 (x86 and x64).
  2. Microsoft .NET Framework 4.5
  3. Microsoft Jet 4.0 Database Engine (or Microsoft Access application)  



Software requirements for Version

  1. OS Microsoft WINDOWS - Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
  2. Microsoft .NET Framework 3.5
  3. Microsoft Jet 4.0 Database Engine (or Microsoft Access application)  


Below you can download the Data related to this application.

This Access WM3 database contains 235 (154+81) records. Thanks to the students from Department of Psychology Faculty of Humanities and Social Sciences University of Zagreb and Ivana Hromatko, Ph.D. Assistant Professor on the collection of these data.


If you need any explanations regarding this data, please feel free to contact us.