Do you mean the timeseries output by that regression?   They are not regressors - they are the GLM output - the fitted parameters.  They could have any scale, depending on your data and your model.
Steve.

On 26 Apr 2013, at 05:15, Marco Loggia <[log in to unmask]> wrote:

Thanks Steve,

I guess what raised the red flag is that the regressor values I have usually seen in the past were from ~ -10 to ~10. Any comments on these regressors, which reach 40s and 50s?

Best,

Marco



---------------------------------------------------------------------------
Stephen M. Smith, Professor of Biomedical Engineering
Associate Director,  Oxford University FMRIB Centre

FMRIB, JR Hospital, Headington, Oxford  OX3 9DU, UK
+44 (0) 1865 222726  (fax 222717)  2176
[log in to unmask]    http://www.fmrib.ox.ac.uk/~steve
---------------------------------------------------------------------------