Fluctuations in Sustained Attention Explain Moment-to-Moment Shifts in Children’s Memory Formation

Author:

Decker Alexandra L.1,Duncan Katherine2,Finn Amy S.2

Affiliation:

1. McGovern Institute for Brain Research, Massachusetts Institute of Technology

2. Department of Psychology, University of Toronto

Abstract

Why do children’s memories often differ from adults’ after the same experience? Whereas prior work has focused on children’s immature memory mechanisms to answer this question, here we focus on the costs of attentional lapses for learning. We track sustained attention and memory formation across time in 7- to 10-year-old children and adults ( n = 120) to show that sustained attention causally shapes the fate of children’s individual memories. Moreover, children’s attention lapsed twice as frequently as adults’, and attention fluctuated with memory formation more closely in children than adults. In addition, although attentional lapses impaired memory for expected events in both children and adults, they impaired memory for unexpected events in children only. Our work reveals that sustained attention is an important cognitive factor that controls access to children’s long-term memory stores. Our work also raises the possibility that developmental differences in cognitive performance stem from developmental shifts in the ability to sustain attention.

Funder

Canada Foundation for Innovation and Ontario Research Foundation

Natural Sciences and Engineering Research Council of Canada

Publisher

SAGE Publications

Subject

General Psychology

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