| Slide 1 |
| "Signal = Measurable response to..." |
| FMRI Philosopy: Signals and Noise |
| Meta-method for creating analysis methods |
| Time Series Analysis on Voxel Data |
| Some Features of FMRI Voxel Time Series |
| "First:" |
| Slide 8 |
| Slide 9 |
| Slide 10 |
| Slide 11 |
| Slide 12 |
| More Sample FMRI Data Time Series |
| Two Voxel Time Series from Same Run |
| "HRF is the idealization of..." |
| Linearity of HRF |
| Linearity and Extended Activation |
| Convolution Signal Model |
| "Assume a fixed shape h..." |
| Simple Regression: Example |
| Duration of Stimuli - Important Caveats |
| Slide 22 |
| Multiple Stimuli = Multiple Regressors |
| Multiple Stimuli - Important Caveat |
| Multiple Regressors: Cartoon |
| Multiple Regressors: Collinearity!! |
| Multiple Regressors: Near Collinearity |
| The Geometry of Collinearity - 1 |
| The Geometry of Collinearity - 2 |
| Equations: Notation |
| Equations: Single Response Function |
| Equations: Multiple Response Functions |
| Equations: Matrix-Vector Form |
| Visualizing the R Matrix |
| Solving zÈRb for b |
| Simple Regression: Recapitulation |
| "Enough theory (for now" |
| Preparing Data for Analysis |
| Data Analysis Script |
| Contents of.1D files |
| To Run Script and View Results |
| More Viewing the Results |
| Stimulus Correlated Movement? |
| Removing Residual Motion Artifacts |
| Some Results: Before and After |
| Multiple Stimulus Classes |
| Regression with Multiple Model Files |
| Regressors for This Script |
| Extra Features of 3dDeconvolve - 1 |
| Extra Features of 3dDeconvolve - 2 |
| Extra Features of 3dDeconvolve - 3 |
| Results of decon_ht2 Script |
| Statistics from 3dDeconvolve |
| Alternative Way to Run waver |
| Deconvolution Signal Models |
| Deconvolution: Pros and Cons |
| Expressing HRF via Regression Unknowns |
| Basis Function: ÒSticksÓ |
| Sticks: Good Points |
| Sticks and TR-locked Stimuli |
| Deconvolution and Collinearity |
| 3dDeconvolve with Stick Functions |
| Extra Features of 3dDeconvolve - 4 |
| Script for Deconvolution - The Data |
| Script for Deconvolution - Outline |
| Script for Deconvolution - 1 |
| Script for Deconvolution - 2 |
| Script for Deconvolution - 3 |
| Script for Deconvolution - 4 |
| Script for Deconvolution - 5 |
| Script for Deconvolution - 6 |
| Script for Deconvolution - 6a |
| Script for Deconvolution - 6b |
| Script for Deconvolution - 6c |
| Script for Deconvolution - 7 |
| Results: Humans vs. Tools |
| Yet More Fun 3dDeconvolve Options |
| 3dDeconvolve with Free Timing |
| Tent Functions = Linear Interpolation |
| At This Point (13 July 2004) É |
| Upgrades Since July 2004 |
| Recent Upgrades - 2 |
| Recent Upgrades - 3 |
| Recent Upgrades - 4 |
| Recent Upgrades - 5 |
| Recent Upgrades - 6 |
| Recent Upgrades - 7 |
| Upgrades Ð Planned or Dreamed of |
| Advanced Topics in Regression |
| Even More Complicated Case |
| Noise Issues |
| Nonlinear Regression |