Psychological operations (Military science) -- See Psychological warfare Here are entered general works dealing with methods used to undermine the morale of the civilian population and the military forces of an enemy country. --subdivision Psychological aspects under names of wars, e.g. World War, 1939-1945--Psychological aspects
Psychological schemas -- See Schemas (Psychology) Here are entered works on the cognitive structure used for comprehension, perception, and interpretation of stimuli. Works on the internal or symbolic representation of social or physical environments, means-end relationships, or spatial relationships are entered under Cognitive maps (Psychology).
Psychological thrillers (Radio programs) -- See Thrillers (Radio programs) This heading is used as a genre/form heading for radio programs that feature a build up of suspense, tension, uncertainty, menace, and anxiety as primary elements and in which the audience is kept on tenterhooks.