Source localization of event-related potentials in cognitive neuroscience

Prof Jarmo Hämäläinen, University of Jyväskylä (Finland)

Wednesday 18 September 2019

The state-of-the-art in EEG research is using high-density electrode arrays. This allows mapping of the electrical field distribution on the scalp with relatively high accuracy. In some cases, this information could be useful in solving research questions involving cognitive functions. Although the spatial resolution of EEG is limited it can provide additional information particularly in cases where the neural generators of the event-related potentials have been established in previous literature. Examples are given on using source localization as a spatial filter, and on using it to estimate contribution of different brain regions on cognitive performance.