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Related Experiment Videos

Long-term maintenance of infant memory.

C Rovee-Collier1, K Hartshorn, M DiRubbo

  • 1Department of Psychology, Rutgers University, Piscataway, NJ 08854-8020, USA.

Developmental Psychobiology
|August 26, 1999
PubMed
Summary

Periodic nonverbal reminders effectively maintain early memories in human infants over several months. This research demonstrates that even preverbal infants possess long-term memory capabilities, challenging previous assumptions.

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Area of Science:

  • Developmental Psychology
  • Cognitive Neuroscience
  • Infant Memory

Background:

  • Long-term memory in preverbal infants is debated.
  • Previous research suggests limitations due to neural immaturity or lack of rehearsal.

Purpose of the Study:

  • To investigate if periodic nonverbal reminders can sustain memory in 2-month-old infants.
  • To determine the duration of memory retention with repeated reminders.

Main Methods:

  • Two experiments were conducted with human infants starting at 2 months of age.
  • Periodic reactivation or reinstatement reminders were administered every 3 weeks.
  • Memory retention was assessed through preliminary tests before each reminder and final testing.

Main Results:

  • Reactivation reminders successfully recovered forgotten memories after 3 weeks in Experiment 1.
  • Infants in Experiment 2 showed significant retention up to 4.5 months and 5.25 months later.
  • Control infants without reminders showed no retention.

Conclusions:

  • Periodic nonverbal reminders can maintain infant memories over extended developmental periods.
  • Preverbal infants demonstrate robust long-term memory capabilities.
  • Findings challenge theories limiting early memory due to immaturity or lack of verbal rehearsal.

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