Self-Enhanced False Memory Across the Life Span

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Neuroscience

Background:

• The role of self-reference in true memory is well-established.
• Limited research exists on how self-reference influences false memory development throughout the lifespan.

Purpose of the Study:

• To investigate the impact of self-reference on associative false memory in children, younger adults, and older adults.
• To explore the underlying memory mechanisms (recollection and familiarity) through which self-reference affects false memory across different age groups.

Main Methods:

• Utilized the Deese/Roediger-McDermott (DRM) paradigm with a self-reference manipulation.
• Participants (children, younger adults, older adults) encoded word lists associated with their name, another person's name, or a neutral stimulus.
• Measured true and false recognition memory, alongside recollection and familiarity.

Main Results:

• A self-enhanced false memory effect was observed in all age groups, with more false memories in the self-reference condition.
• Self-reference increased false recollection in younger adults.
• Self-reference facilitated familiarity of critical lures in older adults.

Conclusions:

• Self-reference amplifies false memory across the lifespan, but through distinct mechanisms: increased false recollection in younger adults and enhanced familiarity in older adults.
• Findings suggest self-relevance is a crucial factor in understanding false memory, with implications for evaluating eyewitness testimony and potential risk factors.