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Recognition memory in 3- to 4-day-old human neonates
1Developmental Neurocognition Unit, Laboratory of Cognitive Neurosciences CNRS, Marseille, France.
Neuroreport
|September 8, 1994
Summary
Human infants possess visual recognition memory by postnatal day 3, a capability potentially linked to subcortical structures rather than solely the medial temporal lobe. This finding advances our understanding of early cognitive development.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Visual recognition memory in adults and monkeys is linked to medial temporal lobe structures.
- This memory function appears later in infant monkeys (postnatal day 15).
Purpose of the Study:
- To determine the earliest onset of visual recognition memory in human infants.
- To explore potential neural underpinnings of early visual recognition memory.
Main Methods:
- Familiarization technique used with human infants.
- Assessment of visual recognition memory with a 2-minute retention interval.
Main Results:
- Visual recognition memory is present in human infants as early as postnatal day 3.
- This capability emerges significantly earlier than observed in infant monkeys.
Conclusions:
- Early visual recognition memory in human infants may involve subcortical structures.
- The role of medial temporal lobe structures in newborns remains to be fully elucidated.