[FieldTrip] Lost reference location
christine.blume at sbg.ac.at
Wed Sep 21 14:57:51 CEST 2016
Dear Casper and Tineke,
As voltage is always the difference between the reference and an electrode, voltages are lowest for electrodes closest to the reference electrode. You could check where voltages are minimal across trials and for each participant. If then for example that is close to Cz, it is likely that data were referenced to the vertex. Just an idea, it might work…but perhaps someone else has a better idea?
Von: fieldtrip-bounces at science.ru.nl [mailto:fieldtrip-bounces at science.ru.nl] Im Auftrag von Casper van Heck
Gesendet: Mittwoch, 21. September 2016 14:25
An: fieldtrip at science.ru.nl
Betreff: [FieldTrip] Lost reference location
We've recently started working on an old dataset, but have ran into a problem; nobody bothered to write down where the reference was placed... Does anybody have ideas on how to reconstruct the location of the reference, based on (some aspect of) the data?
Casper van Heck and Tineke van Rijn
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