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spm_bf.m File Reference


Functions
	p (1)-delay of response(relative to onset) 6-gamd in waver-GAM%p(2)-delay of undershoot(relative to onset) 16%p(3)-dispersion of response 1%p(4)-dispersion of undershoot 1 X%p(5)-ratio of response to undershoot 6 X%p(6)-onset(seconds) 0-gamd%p(7)-length of kernel(seconds) 32 p
	p (6)
Variables
	function [err, bf]
Bethesda MD Define the function name for easy referencing	FuncName = 'spm_bf.m'
Debug Flag	DBG = 1
initailize return variables	err = 1
default	parameters [bf1 p] = spm_hrf(TR,p)
get gamma hrf from SPM function spm_hrf	dp = 1
for calculating time derivative	bf2 = (bf1 - spm_hrf(TR,p))/dp
	D = (bf(:,1) - spm_hrf(TR,p))/dp
time derivative	bf = [bf1 bf2]
	return

Function Documentation

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Variable Documentation

time derivative bf = [bf1 bf2]

Definition at line 55 of file spm_bf.m.

for calculating time derivative bf2 = (bf1 - spm_hrf(TR,p))/dp

Definition at line 53 of file spm_bf.m.

D = (bf(:,1) - spm_hrf(TR,p))/dp

Definition at line 54 of file spm_bf.m.

Debug Flag DBG = 1

Definition at line 35 of file spm_bf.m.

get gamma hrf from SPM function spm_hrf dp = 1

Definition at line 51 of file spm_bf.m.

combine the two err = 1

Definition at line 57 of file spm_bf.m.

Bethesda MD Define the function name for easy referencing FuncName = 'spm_bf.m'

Definition at line 32 of file spm_bf.m.

function[err, bf]

Initial value:

 spm_bf (TR)
%
%   [err,] = spm_bf ()
%
%Purpose:
%   
%   
%   
%Input Parameters:
%   
%   
%   
%Output Parameters:
%   err : 0 No Problem
%       : 1  Problems
%   
%   
%      
%Key Terms:
%   
%More Info :
%   
%   
%   
%
%     Author : Gang Chen
%     Date : Mon Oct 27 17:13:26 EST 2003
%     SSCC/NIMH/ National Institutes of Health

Definition at line 1 of file spm_bf.m.

default parameters[bf1 p] = spm_hrf(TR,p)

Definition at line 50 of file spm_bf.m.

return

Definition at line 58 of file spm_bf.m.

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