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Poster C101

EEG-ExPy: Democratizing the Cognitive Neuroscience Experiment

Poster Session C - Sunday, April 14, 2024, 5:00 – 7:00 pm EDT, Sheraton Hall ABC

John D Griffiths1 (, Taha Morshedzadeh1, Sorenza Bastiaens1, Ore Ogundipe2, Erik Bjareholt3, Daniele Marinazzo4, Yannick Roy5, EEG-ExPy Team .6; 1University of Toronto & Centre for Addiction & Mental Health, 2Fusion Research Inc., 3Lund University, 4Unversity of Ghent, 5McGill Universty,

Cognitive neuroscience experiments using EEG and related techniques have traditionally been restricted to lab settings, with dedicated space, expensive hardware, and professional technical/academic/student staff. Fortunately however, it is now becoming possible to run a wide range of classic experimental paradigms in a highly affordable fashion with minimal specialist equipment and expertise. This shift represents to many a "democratizaton of the cognitive neuroscience experiment". It is in this spirit that we introduce EEG-ExPy ( - A Python-based platform for cognitive neuroscience experimentation and education. This new tool allows a variety of visual, auditory, and other tasks to be run using a personal computer and a minimal+affordable, wireless (bluetooth), consumer-grade EEG device (e.g. InteraXon Muse, Neurosity Crown, OpenBCI Cyton, G.tec Unicorn). It can also be used with research-grade systems (including concurrently with mobile devices) in a lab setting. EEG-ExPy offers a fully self-contained solution to running cognitive neuroscience studies, with functionality spanning the entire span of data recording/stimulus presentation/analysis, with setup times of <30 seconds. This ease of use makes it attractive for a wide audience, including research scientists, clinicians, educators, and hobbyists. Use cases to date span a wide range of settings, from high school outreach programs, hackathons, under/graduate-level neuroscience courses, brain stimulation clinical trials in psychiatry, and bedside recordings in neurology patients. Here we describe the motivation, design, and usage of EEG-ExPy, demonstrating data from several featured experiments, including face-selective N170 ERP components, visual and auditory oddball tasks, and frequency tagging with visual and steady-state evoked potentials.

Topic Area: METHODS: Neuroimaging


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April 13–16  |  2024