At what age does the "Trust vs. Mistrust" stage of development occur?

The "Trust vs. Mistrust" stage of development is a critical period in Erik Erikson's psychosocial development theory that fundamentally occurs from birth to approximately 18 months. During this stage, infants are dependent on caregivers for their basic needs, including nourishment, comfort, and security. If caregivers are consistent, reliable, and nurturing, the infant develops a sense of trust, which serves as the foundation for healthy relational and emotional development later in life.

This stage emphasizes the importance of a stable environment and responsive caregiving, as positive experiences lead to feelings of safety and trust. Conversely, inconsistent or inadequate care may result in feelings of mistrust toward the world, which can affect future relationships and coping mechanisms. The timeframe aligns with the rapid physical and emotional developments that take place during infancy, making it a pivotal stage in shaping the individual's personality and worldview as they grow.