PhD thesis defense

Submitted by ZangYF on Tue, 04/05/2011 - 12:24

Welcome to the PhD thesis defense of two PhD candidates

8:30, April 12, 3rd floor meeting room, MRI center, State Key Lab of Cognitive Neuroscience and Learning, BNU

1. Miss Qihong Zou. Resting-State Functional magnetic Resonance Imaging---Based on BOLD and ASL Techniques.
2. Mr. Chaogan Yan. The spontaneous brain activity: resting-state fMRI network studies.

Forums: 
Resting-state fMRI topics

结果分析问题

Submitted by natalia on Mon, 04/04/2011 - 03:22

严老师：
您好。我以PCC为种子点得到了正常组跟病例组的FC值，用zFC分别做了单样本T检验和双样本的T检验。正常组与PCC相关的脑区与文献相同，病例组得到的相关脑区要少于正常组，但是做了双样本T检验之后发现，病例组在单样本T检验没有出现激活的脑区，现在出现了激活，正值负值都有。例如海马旁回和枕叶，单样本的病例组并未出现任何激活区，但是做完双样本时候海马旁回出现了负值，而枕叶却出现了正值。请问这是什么原因呢？是不是我的数据有问题？该如何分析这种情况？谢谢。

Forums: 
Resting-state fMRI topics