Explore versus store: Children strategically trade off reliance on exploration versus working memory during a complex...

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Neuroscience

Background:

• Working memory is crucial for complex tasks but is limited and effortful.
• Adults strategically adjust working memory use based on task demands and information accessibility.
• Children's working memory and executive functions are still developing.

Purpose of the Study:

• To investigate whether children use working memory strategically in complex, goal-oriented tasks.
• To examine how cognitive demands and exploration costs influence children's working memory strategies.

Main Methods:

• Forty-six 8-10-year-old children participated in a hidden object search task.
• Task cognitive demands were manipulated by category complexity.
• Exploration costs were varied by information access rate.
• Children's search patterns were analyzed to infer working memory usage.

Main Results:

• Increased cognitive demands led children to store less information in working memory and explore more.
• Higher exploration costs resulted in less exploration and more information storage in working memory.
• Children's strategy shifts align with those observed in adults.

Conclusions:

• Developing children exhibit strategic working memory modulation similar to adults.
• Children dynamically balance exploration and information storage based on task context.
• This suggests sophisticated cognitive control strategies emerge during childhood.