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Abnormally low beta coefficients?

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Rob M
Posts: 20
Topic starter
(@rob-j-maclennan)
Eminent Member
Joined: 1 year ago

Hello everyone,

I've recently processed some data and found one channel has very low coefficients for a subset of our subjects. This abnormality(?) seems consistent but is limited to one channel, for a small group. I've pasted text from the output.misc.beta in italics below with the channel in question in red/bold. There is also a screenshot of my excel sheet that better illustrates what I'm seeing.

val(:,:,6,9) =

1.0e-04 *

0.2343 0.2812

val(:,:,7,9) =

1.0e-04 *

0.8085 0.0554

val(:,:,8,9) =

1.0e-17 *

0.1233 -0.0339

val(:,:,9,9) =

1.0e-04 *

0.6300 0.2110

val(:,:,10,9) =

1.0e-04 *

-0.2418 -0.0585

 

Why might this occur? Is it a problem with hardware or acquisition, something I've done wrong in processing, or is it completely normal?

Thanks for your help!

Rob

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