Neuromag event values

Myles Reilly Myles.Reilly at HSC.UTAH.EDU
Wed Apr 18 16:16:32 CEST 2007

It's a Vectorview, 306 sensors. The first one actually.


-----Original Message-----
From: FieldTrip discussion list [mailto:FIELDTRIP at NIC.SURFNET.NL] On
Behalf Of Daniel Kislyuk
Sent: Tuesday, April 17, 2007 4:12 PM
Subject: Re: [FIELDTRIP] Neuromag event values

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
> 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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