Inspecting the external world: Memory capacity, but not memory self-efficacy, predicts offloading in working memory.

Area of Science:

• Cognitive Psychology
• Neuropsychology
• Human Memory

Background:

• Individuals with memory impairments often use external aids (offloading) by inspecting information rather than memorizing everything.
• Both genuine memory capacity deficits and subjective concerns can lead to reliance on external memory strategies.
• Current memory capacity assessments may not capture these real-world offloading behaviors.

Purpose of the Study:

• To differentiate the roles of memory capacity and memory self-efficacy in offloading behaviors.
• To investigate how individuals deploy memory strategies in tasks with flexible demands.
• To assess the utility of inspection behavior as a measure of everyday memory constraints.

Main Methods:

• Recruited 29 memory clinic referrals and 38 age-matched controls.
• Assessed memory capacity using neuropsychological tests and memory self-efficacy via questionnaires.
• Measured inspection behavior in a copy task allowing participants to choose information load or use external aids.

Main Results:

• Referred individuals exhibited lower memory capacity and self-efficacy, longer inspections, and poorer performance.
• Across all participants, higher memory capacity correlated with less frequent and shorter inspections.
• Memory self-efficacy did not significantly predict inspection frequency or duration.

Conclusions:

• Memory capacity, not self-efficacy, influences the deployment of memory strategies in tasks with adjustable demands.
• Standard capacity tests may overlook offloading strategies used to conserve cognitive effort.
• Inspection behavior may not reliably indicate perceived everyday memory limitations.