In turn , this causes fear behaviors , increased caution , and activation of the SAM system .
It has been determined that when glucocorticoids , including cortisol , are placed into various parts of the brain for many days , CRH is produced in increased quantities .
This causes fear behaviors , increased caution , and activation of the SAM system .
It has been determined that when glucocorticoids , including cortisol , are placed into various parts of the brain for many days , CRH is produced in increased quantities .