Hi,
As part of a study we have collected data which appears to be affacted by
periodic signal intensity variations (with a period of 100 seconds). We have
since discovered that this was caused by a faulty air-conditioning unit!
The study involved collecting data over 25 minutes with a baseline for the
first 5 mins followed by a challange for 5 minutes with 15 minutes of
proceeding baseline.
Would it be possible to either low pass filter this data (or to band pass
it) without affacting the SPM analysis? If so is it possible to do this
within SPM?
Thanks for your help
Dave Brennan
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