Stimulus
Correlated Movement?
¥ Extensive ÒactivationÓ (i.e., correlation of data
time series with model time
series) along the top of the
brain is an indicator of
stimulus correlated motion
artifact
¥ Can remain even after registration, due
to errors in registration,
magnetic field inhomogeneities,
etc.
¥ Can be partially removed by using the estimated
movement history (from 3dvolreg) as additional baseline
model functions
¥ 3dvolreg saved the motion parameters
estimates into file epi_r1_mot.1D
¥ For fun: 1dplot epi_r1_mot.1D