NEDE: an open-source scripting suite for developing experiments in 3D virtual environments.

Area of Science:

• Neuroscience
• Computational Neuroscience
• Experimental Psychology

Background:

• Neuroscience research is shifting towards ecologically valid scenarios, moving away from highly controlled experimental paradigms.
• The use of 3D rendering software is growing in neuroscience for creating realistic stimuli.
• Mastering 3D software and scripting experiments demands significant time and effort, posing a barrier to entry.

Purpose of the Study:

• To develop an accessible system for creating realistic virtual environments for neuroscience experiments.
• To reduce the technical expertise and time required to set up virtual reality studies.
• To provide a controlled yet naturalistic experimental design environment.

Main Methods:

• Developed the Naturalistic Experimental Design Environment (NEDE), an open-source suite of scripts using Unity3D game development software.
• NEDE integrates with eye tracking and electroencephalography (EEG) for precise data collection.
• The system allows for the presentation of dynamic 3D virtual environments with randomized stimulus objects.

Main Results:

• NEDE enables researchers to present dynamic 3D virtual environments for stimulus exploration.
• Real-time interface with research-grade eye trackers ensures accurate timing and synchronization with EEG.
• Stimuli can be randomized and presented within the virtual environment.

Conclusions:

• The NEDE system offers a flexible, open-source solution for neuroscience research.
• It significantly lowers the barrier to entry for scientists wanting to conduct experiments in realistic virtual settings.
• Facilitates the creation of complex, controlled experiments in naturalistic virtual environments.