Slide 1
"Signal = Measurable response to..."
FMRI Philosopy: Signals and Noise
Meta-method for creating analysis methods
Time Series Analysis on Voxel Data
"First:"
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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
Multiple Stimuli = Multiple Regressors
Multiple Stimuli - Important Caveat
Multiple Regressors: Cartoon
Multiple Regressors: Collinearity!!
Multiple Regressors: Near Collinearity
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
More Fun 3dDeconvolve Options
3dDeconvolve with Free Timing
Tent Functions = Linear Interpolation
At This Point 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
More Complicated Case
Noise Issues
Nonlinear Regression