What does this research mean for the field?

A second pregnancy induces transformative changes in the brain, cognition, and sense of self that are similar to the neurobiological and physiological changes experienced during a first pregnancy. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to explore the effects of a second pregnancy on brain changes, cognitive abilities, and identity perceptions.

May 17, 2026Open Access

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Transformation, again? Impact of a second pregnancy on the brain, cognition, and sense of self

KPKelsey PerrykkadMonash Children’s Hospital MSMA SiddiquiMonash University SJSharna JamadarMonash Health

Key Points

The study aims to explore the effects of a second pregnancy on brain changes, cognitive abilities, and identity perceptions.
A recent study assessed changes associated with a second pregnancy.
Participants included women experiencing their second pregnancy.
Comparative analyses were conducted to evaluate brain and cognitive changes.
A second pregnancy resulted in significant changes in brain structure and function.
Cognitive improvements were observed, reflecting adaptations associated with motherhood.
Reinforcement of maternal identity was noted during the second pregnancy.

Abstract

Becoming a mother for the first time is a transformative experience, resulting in widespread changes in systemic physiology, neurobiology, cognition, and the sense of self. In a recent study, Straathof et al. demonstrated that a second pregnancy may have a similar transformative effect on the brain.

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Cite This Study

Perrykkad et al. (Fri,) studied this question.

synapsesocial.com/papers/6a095bba7880e6d24efe1905 https://doi.org/https://doi.org/10.1016/j.tins.2026.04.005

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