Secure attachment between an infant and their primary caregiver is critical for healthy social and emotional development. During the first year of life, this attachment helps the infant develop feelings of security and autonomy. Infants who form secure attachments become more resilient, curious, and socially competent as they grow. Insecure attachment, which can occur if a mother's actions are inappropriate, insufficient, or rejecting, leads to children who lack security and are overly anxious or dependent. Early attachment patterns tend to remain fairly permanent and shape expectations in future relationships.