Abnormally low beta coefficients?
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.
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!