¥Multiple activation cycles in a voxel, closer in time than duration of HRF:
HAssume that overlapping responses
add
H
¥Linearity is a pretty good
assumption ¥But not apparently perfect Ñ about 90% correct ¥Nevertheless, is widely taken to be true and is the
basis for the Ògeneral linear modelÓ (GLM)
in FMRI
analysis