A posthypnotic suggestion is an instruction or command given to an individual while they are in a hypnotic state, with the understanding that the suggested behavior or experience will occur after they have emerged from hypnosis. For instance, a person might be told that upon hearing a specific word after waking, they will feel a surge of confidence. This action, triggered by the pre-arranged cue, is the manifestation of the suggestion.
This phenomenon has significant implications within the field of psychology, demonstrating the power of the subconscious mind and its capacity to influence behavior outside of conscious awareness. Historically, it has been used in therapeutic settings to address various issues, such as smoking cessation or anxiety management. The effectiveness stems from the ability to bypass the critical faculty of the conscious mind during hypnosis, allowing suggestions to be more readily accepted and acted upon later.