Time series analysis and ROI signal folder

Hi all, 

So after processing and extracting roi signals, the next step is for me to analyze the roi signals of my subjects using SPSS. Does anyone know what type of analyisis I should carry out on SPSS as I have two groups, one healthy and the other  have Alzheimers.
Whic do I use rregression or corellation.

Also what does the different type of file mean in the results folder for roi extraction. does  Z mean zett?


much appreciation, really  benefiting from this program!!


You can perfrom two sample t test in SPSS.

Z means Fisher's r-to-z transformation.