I made it into Kellogg's mind/memories, but am stuck unable to EXIT them. Can someone please help? I tried walking back/retracing my steps but that does not seem to work... is there something I need to do after I get to the name of the scientist who defected from the Institute? Any answers/hints are welcome. In advance, thanks. RCB

after the scene where the courser take shaun back click on the tv to exit

As the poster above mentioned, you have to interact with the TV that's in Kellogg's home. It took me a long time to figure that out the first time...