The previous article in this series introduced the triune brain, the three components of which handle specialized life tasks. The survival brain, or brain stem, directs automatic physiological functions, such as heartbeat and breathing, and mobilizes fight/flight behaviour in times of threat. The emotional (or limbic) brain activates positive or…

The selective learning hypothesis holds that individuals' learning of prose passages will be affected in varying ways by the passages' threatening or unpleasant content. To test this hypothesis, 19 college students read six prose passages--three containing threatening material and three nonthreatening--and then completed a cloze test for each…