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1st Level Analysis 2: Basis functions, parametric modulation and correlated regressorsBR
You can download a copy of Gayaneh and Oriel's talks here: attachment:BasisFunctions.ppt attachment:ParametricMod.ppt BR
Web ResourcesBR
Below is a list of web resources used in the talk BRBR Basis Functions BR [http://www.fourier-series.com/fourierseries2/fourier_series_tutorial.html Fourier Series Tutorial]BR [http://www.texample.net/tikz/examples/convolution-of-two-functions/ Animated illustration of the convolution of two functions]BR [http://www-structmed.cimr.cam.ac.uk/Course/Convolution/convolution.html The convolution theorem and its applications]BR [http://www.fil.ion.ucl.ac.uk/spm/doc/books/hbf2/ A link to all the chapters of the Human Brain Function]BRBR Rik's SPM GLM powperpoint from our imaging wiki attachment:SPM.ppt BRBR Correlated regressorsBRBR [http://www.matthijs-vink.com/tools.html Design Magic toolbox- Multicollinearity assessment for fMRI for SPM]BR
ReferencesBR
Basis FunctionsBR
Human Brain Function, Academic press, 2nd edition, 2003 (Chapter 10)BR
Functional Magnetic Resonance Imaging (Scott A Huttel et al.)BR
R.N.A. Henson, M.D. Rugg, and K.J. Friston. (2001) The choice of basis functions in event-related fMRI. NeuroImage, 13(6):149, Note: Supplement 1 BR [http://www.fil.ion.ucl.ac.uk/spm/doc/papers/rnah_choice.pdf PDF of paper]
attachment:Dale.pdf Selective Averaging of Rapidly Presented Individual Trials Using fMRIBR attachment:Josephs.pdf Event-Related fMRIBR attachment:Friston.pdf Event-Related fMRI: Characterizing Differential ResponsesBR attachment:Friston2.pdf Nonlinear Event-Related Responses in fMRIBR Parametric regressorsBRBR
Characterizing stimulus-response function using nonlinear regressors in parametric fMRI experiments’, Buchel et al, Neuroimage, 1998 BR
[http://www.fil.ion.ucl.ac.uk/spm/doc/papers/cb_characterizing.pdf PDF of paper]
Using parametric regressors to disentangle properties of multi-feature processes’, Wood et al, Behavioural and Brain Functions, 2008 doi:10.1186/1744-9081-4-38BR [http://www.behavioralandbrainfunctions.com/content/4/1/38/ Link to paper]