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Developmental psychology studies how humans mature from conception to childhood, raising questions about the influences of nature versus nurture. Early fetal development marks the beginning of growth, with critical phases occurring from conception through to birth at around 40 weeks. Infants are born with all senses, adapting rapidly to their environment. Physical milestones range from lifting their heads at three months to potential walking by nine months. Cognitive and emotional development, including language acquisition and the importance of human faces, highlights the complexities of early growth.
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Development Infancy and Childhood
Developmental Psychology Studies how people mature and questions why they develop as they do. Questions nature vs. nurture
Early Development Fetal Development Newborn Infant Early Childhood
Fetal Development From conception cells start developing into a fetus. Each week brings a new set of cells By week 5, there are internal organs Fetus is vulnerable to environmental factors, whatever the mother ingests, the baby will. Gestation for humans is 40 weeks, Born before 37, baby is considered pre-mature
Babies have all senses at birth This helps them adapt to the world around Vision is the last to fully develop, they have a about a foot then becomes blurry Grasping reflex: infants clinging response to a touch on the palm of their hand Rooting Reflex: an infant’s response in turning toward the source of touching that occurs anywhere around their mouth
Physical Development • Around 3 months, babies can lift their head • 4 months smile • 5-6 months grasp things • Could start walking around 9 months • Perceptual Development: • 1961: Robert Fantz did research on what babies want to look at. • Found that it was human faces and patterns
Language Acquisition Symbols: Something that stands for or suggests something else; a visible sign of something invisible. Argument as to whether language is learned or inborn Babble is normal, and by the end of the first year, it becomes more similar to the language