The Technique of Subliminal Perception as Used in Cognitive Psychology

The technique of subliminal perception as used in cognitive psychology research has ____.​

A) ​been discounted as fraud
B) been discounted as a pseudo-problem
C) ​suggested that learning occurs primarily at a conscious level
D) suggested that "mental aspects" of learning occur at a nonconscious level
E) suggested that Freud's conceptualizations of unconscious influences on behavior are better accounted for by subliminal activation