Neuromag event values

Daniel Kislyuk scrofa at GMAIL.COM
Wed Apr 18 00:12:17 CEST 2007

What Neuromag system do you have? With the newer models it's enough to
look at the channel STI 014 only, where the events are very clearly
coded in an easily extractible way.


On 4/18/07, Myles Reilly <myles.reilly at> wrote:
> Hello,
> I have been trying timelockanalysis on continuous Neuromag data.
> It does do the average but the results don't match averages calculated by
> Neuromag applications. In Fieldtrip I can see a single event
> named 'trigger' that has 2 values, [3.0953e-004]
> and [6.1907e-004]. There are actually two triggers with the values 1 and 2.
> Interestingly 3.0953 * 2 = 6.196 so I wonder if there is a calibration
> factor at work here.
> I suspect both triggers are being averaged together.
> Thank you for any direction you can give me on this,
> Myles

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