Secure Attachment: Your Baby's Biological Need for Connection

What attachment is, why babies depend on the adults who care for them, and what research can and cannot tell you. It is not a test of your parenting.

Illustration of a sleeping newborn with a glowing brain and glowing nerve connections around the head

What attachment is

Well-established Attachment is the selective, lasting emotional bond that grows between an infant and the familiar adults who care for them. In attachment theory it has two main purposes: protection and support when a baby needs it, and the felt sense of safety that comes with that. It is understood as part of human biology, which is why babies seek closeness and comfort when they are upset. A secure attachment means a baby has come to expect that a caregiver will usually help. Attachment research is a big field with active debates, and its main findings are about how caregiving relates to security. It is not a verdict on any individual parent.

Why babies depend so much on caregivers

Emerging Human babies are born very dependent. Compared with other great apes, they are born with brains that need a long period of maturation, and in the first year they cannot move about, feed, or reliably calm themselves without help. Researchers see this long dependence as part of how babies learn from, and bond with, the people around them. Many societies share the work of caring among several adults, and babies need responsive care and protection while families need support to give it. The brain is not "unfinished" or "defective" at birth; for example, the prefrontal cortex is slow to mature overall but changes quickly in the first year.

How a secure attachment develops

Sensitive, responsive care Well-established

Across 174 studies, caregivers who noticed, interpreted, and responded fairly promptly and appropriately to their baby's signals ("sensitivity") tended to have more securely attached children. The link was moderate (r = .25; .26 for mothers and .21 for fathers), meaning roughly 6 percent of the differences between children, so many other things matter too: the child, the family's circumstances, and chance. A parent's ability to wonder about what their baby might be feeling was also linked with security (r = .30). No parent is sensitive all the time, and the research does not ask for that.

Not destiny Well-established

Parents' own early attachment experiences are linked with their children's attachment only moderately (about r = .29 to .31), and that link has weakened in newer studies. Most differences between children are not explained by a parent's history. Programs that help parents notice and respond to their baby's signals can increase the number of children who are securely attached. One video-feedback program (VIPP-SD), studied in 25 trials with at-risk families, improved attachment security with a small to moderate effect (r = .23). Attachment patterns are not destiny, and later relationships and support can matter.

Photo-style illustration of a mother holding her newborn close. Notes list a calm voice, eye contact, gentle touch, and a steady heartbeat, and say that emotional connection helps regulate the baby's nervous system.
Mother and baby co-regulation. A calm voice, eye contact, gentle touch, and closeness can help a baby settle. The research on how parent and baby bodies influence each other is still emerging, so this shows ideas and ordinary comforts, not a guarantee. Any caregiver can do this, not only mothers. The labels inside the picture are in English.

Rupture and repair: perfect is not the goal

Emerging In everyday play, parent and baby are not in perfect step. In one study of 116 mother-infant pairs, the pair was in a matched positive state about 58 to 70 percent of the time, and when they fell out of step the mismatch typically lasted about five seconds before they matched again. At 6 and 9 months, pairs who matched more had babies who recovered better from a brief stressful moment. Other researchers also describe parent-infant coordination as partial and two-way. The takeaway: being out of sync is normal, and repair (a smile, a word, a cuddle after a missed signal) is part of ordinary life. This comes from one US sample and cannot show that repair "builds" attachment.

A secure base for exploring

Emerging Attachment theory says that when babies and toddlers can count on a caregiver for comfort, they can more easily venture out and explore. Warmth and encouraging independence are not opposites. In one study of 236 Canadian mother-child pairs, the least secure behavior appeared in children who did not attend childcare and whose mothers were less sensitive or less supportive of autonomy. That suggests care at home matters, but the study did not measure exploration. Direct research on attachment and exploration since 2016 is limited, so this is best seen as a core idea of the theory with supporting but not decisive evidence.

More than one person can be a safe person

Well-established Babies usually form attachments to more than one caregiver. Fathers' sensitivity is related to their child's security about as strongly as mothers' (r = .21 for fathers, .26 for mothers). In a meta-analysis of 95 studies, children's security with fathers was, on average, only very slightly lower than with mothers (a very small difference), and the two were related. In one hunter-gatherer community, caregivers other than the mother provided 40 to 50 percent of a child's care. In a Canadian study, childcare attendance was not by itself linked with less secure attachment; what mattered was the care children received at home. Evidence for other kinds of caregivers, such as adoptive parents and grandparents, is limited, so we say only that other consistent caregivers can be attachment figures.

What secure attachment is associated with

These are group averages. They are not predictions for your child, and insecure attachment is not a disorder.

Associations with secure attachment in research
AreaWhat studies foundStrength of evidence
Emotion regulationMore securely attached children, on average, regulated emotion somewhat better and showed more positive and less negative emotion.Well-established modest effects
Behavior and emotional problemsIn children aged 3 to 18, secure attachment was modestly linked with fewer internalizing problems such as anxiety or low mood (d = .58) and fewer externalizing problems such as aggression (d = .49). Effects were smaller in older children and varied across studies.Well-established modest effects
Social competenceEarlier attachment security is linked with getting along with peers, but we found no recent study giving a reliable effect size.Emerging
Learning and languageCaregiver sensitivity (not attachment itself) was moderately linked with children's thinking (r = .23) and language (r = .26).Emerging
We found no adequate recent evidence on attachment and later relationship expectations, wellbeing, or resilience, so we do not claim them. Temperament, genes, family circumstances, and culture all matter (general context), and the review literature stresses that attachment patterns can change.

Ten everyday ways to support security

These are practical ideas drawn from the research above. None requires being perfect, and none is the only right way. Different cultures comfort babies differently; in one small study of mothers in Uganda and the UK, babies recovered well in both settings.

  1. Notice your baby's signals and respond, not instantly every time, but often and kindly.
  2. Talk, sing, and take turns with sounds and smiles (back-and-forth talk is linked with children's vocabulary).
  3. Wonder aloud what your baby might be feeling.
  4. Comfort distress. We found no research showing that comforting a baby "spoils" them.
  5. Repair after a missed moment: a smile, a cuddle, a quiet "I'm here".
  6. Let your toddler explore, and be the place they can come back to.
  7. Share care with a partner, family, or trusted caregivers.
  8. Protect your own sleep, health, and mood, and ask for help early.
  9. Name feelings and accept them, while still setting the limits you need (supportive responses to feelings are linked with better adjustment).
  10. Be kind to yourself when a day goes badly (general encouragement, not a research finding).

An idea we looked at: being true to your feelings

Some of the thinking behind this page was inspired by the writings of physician Gabor Maté, who argues that children need to be allowed to feel and express their real emotions and that suppressing feelings can have long-term costs. His books and talks are not used as evidence here. We checked the idea against independent research.

  • Partly supported (small associations) Parents who respond supportively to children's emotions, rather than dismissing or punishing them, tend to have children with somewhat better emotional and behavior outcomes, though the associations are small. In adults and students, habitually suppressing emotions is linked with poorer social wellbeing in correlational studies.
  • Limited We found no strong evidence that suppressing feelings as a child causes later physical illness; the studies below measured adversity or diagnosed stress disorders, not suppressing feelings. Childhood adversity is linked with higher average risks for many problems, but a person's score has poor accuracy for predicting what happens to one individual, and links between everyday stress and cancer are not consistent. Stress-related psychiatric disorders have been linked with later autoimmune disease at the population level. These are associations that need cautious interpretation, not proof of a single cause.

Before you become a mother: understanding your own attachment experiences

This is for reflection only. It is not a test, it does not give you an "attachment style", and it cannot diagnose anything. Take what is useful and leave the rest.

Things worth knowing

Your own early experiences do not decide how your child will attach. The link between parents' and children's attachment is only moderate and has weakened in newer studies. You can offer your baby what you did not receive. Many parents do, with support, reflection, and good relationships now, although research on how is limited.

Pregnancy and bonding

Many parents feel connected to their baby during pregnancy, and stronger connection in pregnancy tends to go with stronger bonding afterwards, but only to a small or moderate degree. Activities such as touch, music, relaxation, and meditation are linked with higher scores on prenatal attachment measures, though we do not know that they change later bonding. The associations are small to moderate and many parents bond well after a quieter pregnancy, so feeling little connection now does not mean you will not bond.

Questions to think about, perhaps with a friend, partner, or therapist

  • What did comfort look like when I was little, and what would I like to keep or change?
  • Who are the people I can lean on after the baby comes?
  • What do I want my baby to know about being loved?
  • What would help me feel less alone in the early weeks?

If thinking about your childhood brings up pain, a perinatal mental-health professional can help. Postpartum Support International (above) can point you to one.

What is still uncertain

  • Much of the attachment research so far was carried out in a small number of countries, and we are still learning how it applies to families and communities around the world. Effect sizes are modest.
  • The evidence on repair, on exploration, on adoptive parents and grandparents, and on prenatal preparation is limited.
  • Treating a parent's depression does not always change parenting, and the studies disagree about how much.
  • This is psychoeducation and has not yet been reviewed by an attachment researcher or clinician.
Psychoeducation, not medical advice. Attachment research describes patterns across many families. It is not a verdict on any parent or child, and it cannot diagnose anyone. Most claims are tied to a numbered reference at the bottom of the page.

Secure attachment does not require sacrifice

A baby does not need a parent who gives up sleep, health, friendships, and help to be "good enough". Research on attachment is about responsive, reasonably consistent care. Care is likely easier to give when a parent is rested, supported, and not alone, though that is general sense more than a tested finding. Looking after the person who looks after the baby is part of looking after the baby.

When a parent is struggling, for example with depression, caregiving can be a little harder on average (the link is small, r = -.16 in a review of 48 studies). These are group patterns that may reflect circumstances such as exhaustion and isolation, not how much a parent loves their child, and many parents in these situations care warmly and well. In one large US study the link largely disappeared after accounting for other life circumstances. In one study, support from a partner or family was linked with better parent-baby interaction among mothers with depressive symptoms. Programs that support parents are linked with better parent-child interaction and child outcomes, although they do not all work equally well, and no program "fixes" parenting. Asking for help, sleeping when you can, and getting treatment are good for you, and support is linked with better caregiving, though treatment studies disagree about how much it changes parenting.

Support for mothers after birth: Postpartum Support International

Postpartum Support International (PSI) offers free help for pregnancy and postpartum mental health, for mothers and for other parents. You do not need to be in crisis to reach out. Feeling overwhelmed, anxious, sad, or not like yourself after a baby is common and treatable, and you will always hear back from a person, not an AI program.

  • Call the PSI HelpLine: 1-800-944-4773 (press 1 for Spanish, 2 for English)
  • Text in English: text "Help" to 800-944-4773
  • Text in Spanish: 971-203-7773
  • App: download "Connect by PSI" in your app store

The HelpLine is free and confidential. You can leave a message any time, and calls and texts are returned every day, from 8 am to 11 pm Eastern time. It gives information, support, and local resources. It is not a crisis line and does not handle emergencies. About the HelpLine

In a crisis or emergency, reach out right now. The National Maternal Mental Health Hotline is free, available 24/7 in the United States, and you can call or text 1-833-852-6262. You can also call or text 988, text HOME to 741741, or call 911 if you or your baby are in immediate danger. PSI emergency information

References

All sources are peer-reviewed journal articles published 2016 to 2026. Select a number above to jump to its reference, and a DOI to open the original article. APA 7th edition.

  1. Izaki, A., Verbeke, W. J. M. I., Vrticka, P., & Ein-Dor, T. (2024). A narrative on the neurobiological roots of attachment-system functioning. Communications Psychology, 2(1), 96. https://doi.org/10.1038/s44271-024-00147-9 https://doi.org/10.1038/s44271-024-00147-9 narrative review (theoretical)
  2. Fearon, R. P., & Roisman, G. I. (2017). Attachment theory: progress and future directions. Current Opinion in Psychology, 15, 131–136. https://doi.org/10.1016/j.copsyc.2017.03.002 https://doi.org/10.1016/j.copsyc.2017.03.002 narrative review
  3. Burkart, J. M., Cerrito, P., Natalucci, G., & van Schaik, C. P. (2025). Cooperative Breeding as a Likely Early Catalyst of Human Evolution. Evolutionary Anthropology: Issues, News, and Reviews, 34(3), e70016. https://doi.org/10.1002/evan.70016 https://doi.org/10.1002/evan.70016 review (evolutionary anthropology)
  4. Kliesch, C. (2025). Postnatal dependency as the foundation of social learning in humans. Proceedings of the Royal Society B: Biological Sciences, 292(2045), 20242818. https://doi.org/10.1098/rspb.2024.2818 https://doi.org/10.1098/rspb.2024.2818 theoretical review
  5. Britto, P. R., Lye, S. J., Proulx, K., Yousafzai, A. K., Matthews, S. G., Vaivada, T., Perez-Escamilla, R., Rao, N., Ip, P., Fernald, L. C. H., MacMillan, H., Hanson, M., Wachs, T. D., Yao, H., Yoshikawa, H., Cerezo, A., Leckman, J. F., & Bhutta, Z. A. (2017). Nurturing care: promoting early childhood development. The Lancet, 389(10064), 91–102. https://doi.org/10.1016/s0140-6736(16)31390-3 https://doi.org/10.1016/s0140-6736(16)31390-3 narrative review (Lancet Series paper)
  6. Hodel, A. S. (2018). Rapid infant prefrontal cortex development and sensitivity to early environmental experience. Developmental Review, 48, 113–144. https://doi.org/10.1016/j.dr.2018.02.003 https://doi.org/10.1016/j.dr.2018.02.003 narrative review (neuroimaging)
  7. Madigan, S., Deneault, A.-A., Duschinsky, R., Bakermans-Kranenburg, M. J., Schuengel, C., van IJzendoorn, M. H., Ly, A., Fearon, R. M. P., Eirich, R., & Verhage, M. L. (2024). Maternal and paternal sensitivity: Key determinants of child attachment security examined through meta-analysis. Psychological Bulletin, 150(7), 839–872. https://doi.org/10.1037/bul0000433 https://doi.org/10.1037/bul0000433 meta-analysis
  8. Zeegers, M. A. J., Colonnesi, C., Stams, G.-J. J. M., & Meins, E. (2017). Mind matters: A meta-analysis on parental mentalization and sensitivity as predictors of infant–parent attachment. Psychological Bulletin, 143(12), 1245–1272. https://doi.org/10.1037/bul0000114 https://doi.org/10.1037/bul0000114 meta-analysis (multilevel, with meta-analytic structural equation model)
  9. Verhage, M. L., Schuengel, C., Madigan, S., Fearon, R. M. P., Oosterman, M., Cassibba, R., Bakermans-Kranenburg, M. J., & van IJzendoorn, M. H. (2016). Narrowing the transmission gap: A synthesis of three decades of research on intergenerational transmission of attachment. Psychological Bulletin, 142(4), 337–366. https://doi.org/10.1037/bul0000038 https://doi.org/10.1037/bul0000038 meta-analysis
  10. Verhage, M. L., Fearon, R. M. P., Schuengel, C., van IJzendoorn, M. H., Bakermans-Kranenburg, M. J., Madigan, S., Roisman, G. I., Oosterman, M., Behrens, K. Y., Wong, M. S., Mangelsdorf, S., Priddis, L. E., Brisch, K.-H., The Collaboration on Attachment Transmission Synthesis, Arnott, B., Aviezer, O., Bailey, H., Behringer, J., Bernier, A., . . . Ward, M. J. (2018). Examining Ecological Constraints on the Intergenerational Transmission of Attachment Via Individual Participant Data Meta-analysis. Child Development, 89(6), 2023–2037. https://doi.org/10.1111/cdev.13085 https://doi.org/10.1111/cdev.13085 individual participant data meta-analysis
  11. van IJzendoorn, M. H., Schuengel, C., Wang, Q., & Bakermans-Kranenburg, M. J. (2023). Improving parenting, child attachment, and externalizing behaviors: Meta-analysis of the first 25 randomized controlled trials on the effects of Video-feedback Intervention to promote Positive Parenting and Sensitive Discipline. Development and Psychopathology, 35(1), 241–256. https://doi.org/10.1017/s0954579421001462 https://doi.org/10.1017/s0954579421001462 meta-analysis of randomized controlled trials
  12. Mountain, G., Cahill, J., & Thorpe, H. (2017). Sensitivity and attachment interventions in early childhood: A systematic review and meta-analysis. Infant Behavior and Development, 46, 14–32. https://doi.org/10.1016/j.infbeh.2016.10.006 https://doi.org/10.1016/j.infbeh.2016.10.006 systematic review and meta-analysis of RCTs
  13. Hu, Y., Li, X., & McElwain, N. L. (2025). Mother–infant interactive processes and infant behavioral and vagal stress recovery: Associations at 3, 6, and 9 months of age. Developmental Psychology, 61(8), 1452–1463. https://doi.org/10.1037/dev0001878 https://doi.org/10.1037/dev0001878 observational longitudinal (still-face paradigm)
  14. Beebe, B., Messinger, D., Bahrick, L. E., Margolis, A., Buck, K. A., & Chen, H. (2016). A systems view of mother–infant face-to-face communication. Developmental Psychology, 52(4), 556–571. https://doi.org/10.1037/a0040085 https://doi.org/10.1037/a0040085 observational (time-series coding)
  15. Bernier, A., Côté, S. M., Leclerc, G., Matte-Gagné, C., & Marquis-Brideau, C. (2024). Revisiting the childcare–attachment question: under what conditions is childcare participation associated with mother–child attachment security?. Attachment & Human Development, 26(2), 95–115. https://doi.org/10.1080/14616734.2024.2344521 https://doi.org/10.1080/14616734.2024.2344521 cross-sectional/longitudinal cohort (observational)
  16. Nivison, M. D., Fearon, P., Jenkins, J. M., & Madigan, S. (2026). Annual Research Review: The role of caregiver sensitivity in children's developmental outcomes – an umbrella review. Journal of Child Psychology and Psychiatry, 67(4), 486–507. https://doi.org/10.1111/jcpp.70087 https://doi.org/10.1111/jcpp.70087 umbrella review (17 meta-analyses)
  17. Pinquart, M. (2022). Attachment security to mothers and fathers: A meta‐analysis on mean‐level differences and correlations of behavioural measures. Infant and Child Development, 31(6), e2364. https://doi.org/10.1002/icd.2364 https://doi.org/10.1002/icd.2364 meta-analysis
  18. Chaudhary, N., Salali, G. D., & Swanepoel, A. (2024). Sensitive responsiveness and multiple caregiving networks among Mbendjele BaYaka hunter-gatherers: Potential implications for psychological development and well-being. Developmental Psychology, 60(3), 422–440. https://doi.org/10.1037/dev0001601 https://doi.org/10.1037/dev0001601 observational field study
  19. Cooke, J. E., Kochendorfer, L. B., Stuart-Parrigon, K. L., Koehn, A. J., & Kerns, K. A. (2019). Parent–child attachment and children’s experience and regulation of emotion: A meta-analytic review. Emotion, 19(6), 1103–1126. https://doi.org/10.1037/emo0000504 https://doi.org/10.1037/emo0000504 meta-analysis
  20. Madigan, S., Brumariu, L. E., Villani, V., Atkinson, L., & Lyons-Ruth, K. (2016). Representational and questionnaire measures of attachment: A meta-analysis of relations to child internalizing and externalizing problems. Psychological Bulletin, 142(4), 367–399. https://doi.org/10.1037/bul0000029 https://doi.org/10.1037/bul0000029 meta-analysis
  21. Groh, A. M., Narayan, A. J., Bakermans-Kranenburg, M. J., Roisman, G. I., Vaughn, B. E., Fearon, R. M. P., & van IJzendoorn, M. H. (2017). Attachment and Temperament in the Early Life Course: A Meta-Analytic Review. Child Development, 88(3), 770–795. https://doi.org/10.1111/cdev.12677 https://doi.org/10.1111/cdev.12677 meta-analysis
  22. Vreden, C., Atim, S., Buryn-Weitzel, J. C., Di Gregorio, G., Donnellan, E., Hoffman, M., Holden, E., Jurua, M., Knapper, C. V., Marshall, S., Paricia, J., Tusiime, F., Wilke, C., Slocombe, K. E., & Clay, Z. (2025). Maternal responsiveness to infant distress: A cross-cultural investigation in Uganda and the United Kingdom. Developmental Psychology. https://doi.org/10.1037/dev0002038 https://doi.org/10.1037/dev0002038 longitudinal cohort (naturalistic observation)
  23. Donnelly, S., & Kidd, E. (2021). The longitudinal relationship between conversational turn-taking and vocabulary growth in early language development. Child Development, 92(2), 609-625. https://doi.org/10.1111/cdev.13511 https://doi.org/10.1111/cdev.13511 longitudinal cohort (daylong audio recordings)
  24. Cooke, J. E., Deneault, A.-A., Devereux, C., Eirich, R., Fearon, R. M. P., & Madigan, S. (2022). Parental sensitivity and child behavioral problems: A meta-analytic review. Child Development, 93(5), 1231-1248. https://doi.org/10.1111/cdev.13764 https://doi.org/10.1111/cdev.13764 meta-analysis
  25. Bernard, K., Nissim, G., Vaccaro, S., Harris, J. L., & Lindhiem, O. (2018). Association between maternal depression and maternal sensitivity from birth to 12 months: a meta-analysis. Attachment & Human Development, 20(6), 578–599. https://doi.org/10.1080/14616734.2018.1430839 https://doi.org/10.1080/14616734.2018.1430839 meta-analysis
  26. MacMillan, K. K., Lewis, A. J., Watson, S. J., Bourke, D., & Galbally, M. (2021). Maternal social support, depression and emotional availability in early mother-infant interaction: Findings from a pregnancy cohort. Journal of Affective Disorders, 292, 757–765. https://doi.org/10.1016/j.jad.2021.05.048 https://doi.org/10.1016/j.jad.2021.05.048 prospective pregnancy cohort
  27. Johnson, A. M., Hawes, D. J., Eisenberg, N., Kohlhoff, J., & Dudeney, J. (2017). Emotion socialization and child conduct problems: A comprehensive review and meta-analysis. Clinical Psychology Review, 54, 65-80. https://doi.org/10.1016/j.cpr.2017.04.001 https://doi.org/10.1016/j.cpr.2017.04.001 meta-analysis
  28. Zinsser, K. M., Gordon, R. A., & Jiang, X. (2021). Parents’ socialization of preschool-aged children's emotion skills: A meta-analysis using an emotion-focused parenting practices framework. Early Childhood Research Quarterly, 55, 377-390. https://doi.org/10.1016/j.ecresq.2021.02.001 https://doi.org/10.1016/j.ecresq.2021.02.001 meta-analysis
  29. Chervonsky, E., & Hunt, C. (2017). Suppression and expression of emotion in social and interpersonal outcomes: A meta-analysis. Emotion, 17(4), 669-683. https://doi.org/10.1037/emo0000270 https://doi.org/10.1037/emo0000270 meta-analysis
  30. Hughes, K., Bellis, M. A., Hardcastle, K. A., Sethi, D., Butchart, A., Mikton, C., Jones, L., & Dunne, M. P. (2017). The effect of multiple adverse childhood experiences on health: a systematic review and meta-analysis. The Lancet Public Health, 2(8), e356-e366. https://doi.org/10.1016/s2468-2667(17)30118-4 https://doi.org/10.1016/s2468-2667(17)30118-4 systematic review and meta-analysis
  31. Baldwin, J. R., Caspi, A., Meehan, A. J., Ambler, A., Arseneault, L., Fisher, H. L., Harrington, H., Matthews, T., Odgers, C. L., Poulton, R., Ramrakha, S., Moffitt, T. E., & Danese, A. (2021). Population vs Individual Prediction of Poor Health From Results of Adverse Childhood Experiences Screening. JAMA Pediatrics, 175(4), 385. https://doi.org/10.1001/jamapediatrics.2020.5602 https://doi.org/10.1001/jamapediatrics.2020.5602 prospective birth cohorts (2)
  32. Galicia Pacheco, S. I., Petrova, D., Garrido, D., Catena, A., Madrid Pérez-Esparza, B., Torralba, C., Ruiz-Vozmediano, J., García-Pérez, J., Sánchez, M. J., & Garcia-Retamero, R. (2026). The relationship between psychological stress and cancer incidence: a systematic review and meta-analysis. Health Psychology Review, 20(2), 330-356. https://doi.org/10.1080/17437199.2025.2590491 https://doi.org/10.1080/17437199.2025.2590491 systematic review and meta-analysis of prospective studies
  33. Song, H., Fang, F., Tomasson, G., Arnberg, F. K., Mataix-Cols, D., Fernández de la Cruz, L., Almqvist, C., Fall, K., & Valdimarsdóttir, U. A. (2018). Association of Stress-Related Disorders With Subsequent Autoimmune Disease. JAMA, 319(23), 2388. https://doi.org/10.1001/jama.2018.7028 https://doi.org/10.1001/jama.2018.7028 population- and sibling-matched retrospective register cohort
  34. Trombetta, T., Giordano, M., Santoniccolo, F., Vismara, L., Della Vedova, A. M., & Rollè, L. (2021). Pre-natal Attachment and Parent-To-Infant Attachment: A Systematic Review. Frontiers in Psychology, 12, 620942. https://doi.org/10.3389/fpsyg.2021.620942 https://doi.org/10.3389/fpsyg.2021.620942 systematic review
  35. Coté, J. J., Dilsaver, D. B., Dimmock, J., Doehrman, P., Teague, S., Coté, R. D., Coté, B. P., Kilzer, R., Sabbaghi, M. O., Borelli, J. L., & Massey, S. H. (2025). Prenatal attachment interventions: a comprehensive systematic review and meta-analysis. Archives of Women's Mental Health, 28(6), 1447–1471. https://doi.org/10.1007/s00737-025-01630-w https://doi.org/10.1007/s00737-025-01630-w systematic review and meta-analysis
  36. Branjerdporn, G., Meredith, P., Strong, J., & Garcia, J. (2017). Associations Between Maternal-Foetal Attachment and Infant Developmental Outcomes: A Systematic Review. Maternal and Child Health Journal, 21(3), 540–553. https://doi.org/10.1007/s10995-016-2138-2 https://doi.org/10.1007/s10995-016-2138-2 systematic review
  37. Freeman, S. E., Reznik, J., Jain, M., Sokol, E. E., Manning, D., Rohde, H., Loverich, T. M., & Lawler, J. M. (2025). Perinatal Mental Health Interventions with a Parent–Child Relational Component: A Systematic Review of the Effects on Mothers and Dyads. Clinical Child and Family Psychology Review, 28(3), 650–683. https://doi.org/10.1007/s10567-025-00535-5 https://doi.org/10.1007/s10567-025-00535-5 systematic review
  38. Al Sager, A., Goodman, S. H., Jeong, J., Bain, P. A., & Ahun, M. N. (2024). Effects of multi-component parenting and parental mental health interventions on early childhood development and parent outcomes: a systematic review and meta-analysis. The Lancet Child & Adolescent Health, 8(9), 656–669. https://doi.org/10.1016/s2352-4642(24)00134-2 https://doi.org/10.1016/s2352-4642(24)00134-2 systematic review and meta-analysis of RCTs
  39. Padrutt, E. R., Stallworthy, I., DeJoseph, M., Wilson, S., & Berry, D. (2026). Maternal postnatal depression and sensitive parenting: Considering developmental timing with a causally informative approach. Developmental Psychology. https://doi.org/10.1037/dev0002273 https://doi.org/10.1037/dev0002273 prospective longitudinal cohort (causal-inference modelling)
  40. Alves, C. R. L., Seibel, B. L., Gaspardo, C. M., Altafim, E. R. P., & Linhares, M. B. M. (2024). Home-visiting Parenting Programs to Improve Mother-Infant Interactions at Early Ages: A Systematic Review. Psychosocial Intervention, 33(2), 117–132. https://doi.org/10.5093/pi2024a7 https://doi.org/10.5093/pi2024a7 systematic review

You don't have to wait until it's bad

These free US lines are for parents, partners, and anyone supporting them, during pregnancy and after.

Outside the US, contact your local emergency number or health service. If someone has confusion, hallucinations, or thoughts of harming themselves or the baby, call 911 or go to an emergency room.

Physical warning signs like chest pain, trouble breathing, a severe headache, or heavy bleeding during pregnancy or in the year after birth also need care right away. See urgent warning signs

Safety information in other languages: Español · Français · 中文 · Tiếng Việt · Italiano