We found two regions that preferred A to B, region 1 and 2, respectively.

I was keen to explore the time series a little further. So what I did was take the A-B difference for each subject in each of the regions and compute the 95%CI for each 2 sec interval from the start of the stimulus presentation.

We get a difference time series for each region  and for each point we have a 95%CI. I have plotted the CIs for each point on each function (one for region 1 and one for region 2).

Now I note at which time point the CIs reflect a sig diff (i.e., dont cross the x axis) and what I find is that the critical difference occurs earlier for region 1 than 2. At last a window on the time course of psychological functioning?

I, of course, now want to claim my Nobel Prize but suspect this is completely flawed.

Please advise.

Philip.