fMRI signal + - Neurometrika

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Stimulus timing convolved with the“canonical” HRF...What is the use, in most analyses, of “canonicalHRF” function?It refers to the fact that the SAME “HRF” is usedFOR ALL voxels in the brain,FOR ALL stimulus types,FOR ALL subjects!
Stimulus timing convolved with the“canonical” HRF...One can use the “Finite Impulse Response (FIR)”model to estimate the HRF individually: for eachvoxel in the brain, for each stimulus type, for eachsubject.In practice, full FIR analysis is rarely done. Butestimating the dispersion and delay of the HRFindividually on a voxel basis, and then treating thoseas “covariates of no interest”, is more commonlyuseful.
Page 3 and 4: NMRData AnalysisPracticalitiesMRIPs
Page 5 and 6: Overview of SPMImagetime-seriesSpat
Page 7 and 8: Lecture 2Preprocessing: Realignment
Page 9 and 10: Lecture 2Preprocessing: Spatial Nor
Page 11 and 12: Overview of SPMImagetime-seriesSpat
Page 13 and 14: Lecture 4Modeling for Second Level
Page 16 and 17: View 1:A series of volumes(scans, 3
Page 18 and 19: From Experimental Timing to Expecte
Page 20 and 21: The General Linear Model (GLM)β 0
Page 22 and 23: The General Linear Model (GLM)estim
Page 24 and 25: Time= + + +fMRI signal= datadesign
Page 26 and 27: ⊗
Page 30 and 31: The General Linear Model (GLM)
Page 32 and 33: The GLM in Matrix Notation
Page 34 and 35: Fitting a GLM
Page 36 and 37: Observed fMRI signalPredicted fMRI
Page 38 and 39: Observed fMRI signalPredicted fMRI
Page 40: Functional MRI WorkshopsIntroductio

fMRI signal + - Neurometrika

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