Chapter 4 - Introduction to Developmental Psychology

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Infancy: early learning, motor skills, and perceptual capacities the organized. A reflex is an inborn, automatic response to a particular form of stimulation; reflexes are the neonate s most obvious organized patterns of behaviour. Isolating infants to promote sleep is rate elsewhere in the world; when babies sleep with their parents, their average sleep period remains constant at three hours from. 1 to 8 months of age; only at the end of the first year, as rem sleep (the state that usually prompts waking) declines, do infants move in the direction of an adultlike sleep-waking schedule. In infants who are brain-damaged or who have experienced birth trauma, disturbed rem-nrem sleep cycles are often present; the brain-functioning problems that underlie newborn sleep irregularities may culminate in sudden infant death syndrome, a major cause of infant mortality. Crying crying is the first way that babies communicate, lettings parents know that they need food, comfort, and stimulation.

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