Evidence for cognitive plasticity during pregnancy via enhanced learning and memory
Bridget Callaghan1, Clare McCormack2,3, Nim Tottenham3
1Department of Psychology, The University of California, Los Angeles, CA, United States.
Memory (Hove, England)
|January 5, 2022
Summary
Pregnancy enhances spatial associative memory, improving long-term retention of object-scene-location information. Pregnant women also show better learning of parenting-relevant stimuli compared to non-parenting stimuli.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Developmental Psychology
Background:
- Pregnancy involves brain plasticity potentially supporting maternal behaviors.
- The concept of
- baby brain
- contrasts with adaptive plasticity, with inconsistent evidence for memory deficits.
- Few studies explored spatial associative memory during human pregnancy, especially with parent-relevant stimuli.
Purpose of the Study:
- To investigate spatial associative memory retention in pregnant women.
- To compare learning of parenting-relevant versus non-parenting-relevant stimuli.
- To examine cognitive adaptations during the third trimester of pregnancy.
Main Methods:
- Compared spatial associative memory retention in pregnant women (third trimester) versus never-pregnant women.
- Assessed long-term retention of object-scene-location associations over 4 weeks.
- Evaluated initial learning of parenting-relevant and non-parenting-relevant stimuli.
Main Results:
- Pregnant women showed enhanced long-term retention of spatial associative memory.
- Pregnant women exhibited better initial learning for parenting-relevant stimuli compared to non-parenting-relevant stimuli.
- Cognitive improvements in pregnancy were specific to spatial associative retention and recognition of parenting stimuli.
Conclusions:
- Human pregnancy is associated with cognitive enhancements, not deficits, in specific memory domains.
- Brain plasticity during pregnancy supports improved spatial associative memory and recognition of relevant stimuli.
- Findings align with rodent studies, suggesting adaptive cognitive changes supporting maternal roles.
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