Posthypnotic amnesia for a first romantic relationship: Forgetting the entire relationship versus forgetting selected...

Area of Science:

• Cognitive Psychology
• Neuroscience
• Hypnosis Research

Background:

• Posthypnotic amnesia (PHA) is a phenomenon where suggestions given during hypnosis cause memory loss after the hypnotic state.
• Understanding the parameters of PHA is crucial for exploring autobiographical memory and functional amnesia.

Purpose of the Study:

• To investigate how the focus of a posthypnotic amnesia suggestion (entire period vs. specific memories) affects memory recall.
• To examine the differential impact of suggestion focus on individuals with high and low hypnotizability.

Main Methods:

• Participants (high and low hypnotizability) recalled memories of a first romantic relationship during hypnosis.
• A posthypnotic amnesia suggestion was administered, targeting either the entire memory period or specific events.
• Explicit memory was assessed via cued recall before and after suggestion cancellation; implicit memory was assessed using a social judgment task.

Main Results:

• Posthypnotic amnesia had a greater impact on memory performance (recall, latency, quality) for highly hypnotizable individuals when the suggestion targeted the entire memory period.
• Low hypnotizable individuals showed less impact from PHA, regardless of suggestion focus.
• Dissociations between implicit and explicit memory were observed.

Conclusions:

• The scope of a posthypnotic amnesia suggestion significantly influences its effectiveness, particularly for highly hypnotizable individuals.
• PHA is a valuable tool for studying the structure of autobiographical memory and its potential disruptions.
• Findings contribute to understanding laboratory analogues of functional amnesia.