From Discovery Maga­zine: One of memory’s big jobs is to keep straight what actu­ally happened versus what we imag­ined: whether we said some­thing out loud or to ourselves, whether we locked the door behind us or just thought about locking the door. That ability, a new study found, is linked to the pres­ence of a small fold in the front of the brain, which some people have and others don’t—a finding that could help researchers better under­stand not only healthy memory, but disor­ders like schiz­o­phrenia in which the line between the real and the imag­ined is blurred. · Go to A fold in the brain is linked to keeping reality and imag­i­na­tion sepa­rate →