3dREMLfit
AFNIÕs New Approach to Dealing with Serial Correlation in FMRI Linear Regression (GLM)
Conclusions First
3dDeconvolve and Ordinary Least Squares (OLSQ)
A Tiny Amount of Mathematics
Mathematical Model for Serial Correlation
New Program: 3dREMLfit
Rapid Event Related Design (NIH 3 T: JJY)
Individual Maps from 17 Subjects
Block Design (15 s blocks: FBIRN-1 SM Task)
1 Individual Map (Subject#106)
Block Design (30 s blocks: NIH 3T; JJY)
Individual Maps from 16 Subjects
Results Thus Far
Block Design: Group Results (3dANOVA3)
Event-Related Design: Group Results (3dANOVA3)
Tentative Conclusions
Outline of SPM and FSL Approaches
Using 3dREMLfit - 1
Using 3dREMLfit - 2
Potential Add-ons to 3dREMLfit
Serial Correlation Model & Notation: ARMA(1,1)
AR(1): a  vs.  MA(1): b  vs.  ARMA(1,1): a & b
Spectrum (slightly smoothed absFFT) of Residuals
Spectrum of Residuals
Spectrum of Residuals
6 Types of Analysis
Conclusions from Previous Slides
Mathematics and Implementation