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Timely sleep facilitates declarative memory consolidation in infants

Journal Article


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Abstract


  • Human infants devote the majority of their time to sleeping. However, very little is known about the role of sleep in early memory processing. Here we test 6- and 12-mo-old infants’ declarative memory for novel actions after a 4-h [Experiment (Exp.) 1] and 24-h delay (Exp. 2). Infants in a nap condition took an extended nap (≥30 min) within 4 h after learning, whereas infants in a no-nap condition did not. A comparison with age-matched control groups revealed that after both delays, only infants who had napped after learning remembered the target actions at the test. Additionally, after the 24-h delay, memory performance of infants in the nap condition was significantly higher than that of infants in the no-nap condition. This is the first experimental evidence to our knowledge for an enhancing role of sleep in the consolidation of declarative memories in the first year of life.

Authors


  •   Seehagen, Sabine (external author)
  •   Konrad, Carolin (external author)
  •   Herbert, Jane S.
  •   Schneider, Silvia (external author)

Publication Date


  • 2015

Citation


  • Seehagen, S., Konrad, C., Herbert, J. S. & Schneider, S. (2015). Timely sleep facilitates declarative memory consolidation in infants. Proceedings of the National Academy of Sciences of USA, 112 (5), 1625-1629.

Scopus Eid


  • 2-s2.0-84922253089

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3617&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/2616

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1625

End Page


  • 1629

Volume


  • 112

Issue


  • 5

Place Of Publication


  • United States

Abstract


  • Human infants devote the majority of their time to sleeping. However, very little is known about the role of sleep in early memory processing. Here we test 6- and 12-mo-old infants’ declarative memory for novel actions after a 4-h [Experiment (Exp.) 1] and 24-h delay (Exp. 2). Infants in a nap condition took an extended nap (≥30 min) within 4 h after learning, whereas infants in a no-nap condition did not. A comparison with age-matched control groups revealed that after both delays, only infants who had napped after learning remembered the target actions at the test. Additionally, after the 24-h delay, memory performance of infants in the nap condition was significantly higher than that of infants in the no-nap condition. This is the first experimental evidence to our knowledge for an enhancing role of sleep in the consolidation of declarative memories in the first year of life.

Authors


  •   Seehagen, Sabine (external author)
  •   Konrad, Carolin (external author)
  •   Herbert, Jane S.
  •   Schneider, Silvia (external author)

Publication Date


  • 2015

Citation


  • Seehagen, S., Konrad, C., Herbert, J. S. & Schneider, S. (2015). Timely sleep facilitates declarative memory consolidation in infants. Proceedings of the National Academy of Sciences of USA, 112 (5), 1625-1629.

Scopus Eid


  • 2-s2.0-84922253089

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3617&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/2616

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1625

End Page


  • 1629

Volume


  • 112

Issue


  • 5

Place Of Publication


  • United States