PowerPoint Presentation - 3dDeconvolve etc

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Stimulus Correlated Movement?

• Extensive “activation” (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