[Eeglablist] Fw: BrainCap MR impedance values

[Alun Metcalf]

Hi,


I'm looking for some advice on impedance values using 64Ch Standard BrainCap-MR with multirodes. I'm planning on using the 64 channel cap for a concurrent EEG-fMRI setup and need to get a idea of what sort of impedance values can be tolerated before signal quality is compromised. As far as I'm aware there is already a 10kOhm impedance within the cap/connecting boxes. With this being the case what sort of overall impedance values are generally deemed acceptable?


Thanks in advance for any help anyone can offer on this.


Alun Metcalf


Cardiff University Brain Research Imaging Centre



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