Dear Xu,
Do you mean these subjects have no significant BOLD changes even
in single case analysis? If do, I think you should go backforward to
have a look at their headmotion etc., since these may affect the BOLD
signal.
Anyway, BOLD changes in event related experiment are always to small
and easily to be flushed by the noise.
Hope these may helps.
Sincerely yours,
Hongjian
--
何宏建
Bio-X Lab, Physics Department, Zhejiang University.
Zheda Road 38, Hang Zhou, China.
310027
Phone: 86-571-87952811
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