Programmers are the most important part of software production and individual developers are hard to substitute. The essential part of the knowledge intensive development process is the developers mind state. Understanding the mental states of software developers has become a main interest of software production companies since it is the most valuable resource for software development. However the main challenge in analysing the software developers mental states is that most precise equipment, such as fMRI, is extremely expensive and not portable. Thus, fMRI approximation from EEG readings tools such as MNE, have been developed over the years. The idea of recreating the fMRI based on EEG signal is the main motivation for the current work. This research explains how we used this tool in our studies. © 2021, Springer Nature Switzerland AG.