Maarten -
It sounds like in this specific case you can safely ignore the bad
channel thing: you are anyway more interested in artifacts here than
in any brain signal.
Otherwise, the workaround with manual scanning isn't going to be very
time-efficient, I am afraid.
yury
2007/6/15, Maarten van Casteren <[log in to unmask]>:
> Hi,
>
> I made a number of empty room recordings to test the interference
> of several sets of headphones in several locations.
> I did use MaxShield with this, as we always do.
>
> I now have trouble with MaxFilter. It basically sees almost all channels
> as 'bad'. I'm sure this isn't true, as the machine was well tuned
> before these recordings and all data looked very good and clean.
>
> Is it possible that the fact that there's no signal at all coming from
> within the helmet confuses MaxFilter's algorithm?
>
> Maarten
>
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