Hello FSL coders,
I have been checking the standard preprocessing scripts (prestats) and
noticed at line 5274 of file featlib.tcl
set smoothsigma [ expr $fmri(smooth) / 2.355 ]
Could you briefly explain where the 2.355 comes from?
That happens before registration to standard template: does it mean
that if it was happening after registration to template then: set
smoothsigma [ expr $fmri(smooth) / 1 ] is valid?
thanks in advance
Enrico
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