[FieldTrip] Longitudinal statistical analysis

Alexandre Chalard alexandre.chalard at inserm.fr
Wed Jul 24 17:18:22 CEST 2019

Hello, everyone,

I would like to post a statistical question on this group.

I am dealing with longitudinal data during 4 different visits of stroke patients during a motor task (T1,T2,T3,T4). T1 and T2 represent baseline measurements in different days and T3 and T4 represent measurements after an intervention at different times after the intervention.

My goal is to investigate the potential effect of my intervention in these patients on T3 and T4 evaluations. 

After a preliminary data exploration, TopoplotTFR data are well reproducible with little variance. The topoplotTFR data during the T3 and T4 evaluations change with the intervention, but they vary with a different pattern for each subject (some subjects will increase their activity in an area, others will reduce it, some the area of activity will change, etc.... )

Cluster analysis does not reveal any obvious changes because there are different patterns within patients. 

So my question is, if anyone has a method or a lead to investigate in order to evaluate these longitudinal changes? 

Thanks to the community

Kind regards,

Alexandre Chalard
PhD Student
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