An automatic body response to a stimulus. At birth, an infant's physical abilities are limited to reflexes.
reflex
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Order in which a child is able to perform new movements. Motor sequence depends on the development of the brain and nerves.
motor sequence
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An understanding that objects continue to exist even if a person cannot seem them.
object permanence
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Watching another person's behavior, then acting out that behavior. This occurs between eighteen and twenty-four months.
deferred imitation
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Two-word phrases used by toddlers when they first learn to combine words.
telegraphic speech
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Quality and intensity of children's emotional reactions to their environment, such as passivity, irritability, and activity patterns.
temperament
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The strong emotional connection that develops between people.
attachment
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A child's difficulty in separating from parents, often occurring between 6 and 15 months of age.
separation anxiety
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An infant's average weight at birth.
7 1/2 pounds
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Reflex that is necessary for life.
survival reflex
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This reflex causes infants to turn their heads toward anything that brushes their faces. This action helps them find a food source such as a nipple.
Rooting reflex
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This reflex is sometimes referred to as the "startle reflex." It occurs when a newborn is startled by a noise or sudden movement. The infant will react by flinging the arms and legs outward and extending the head. Then the infant...
Moro reflex
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When you touch the infant's palms, the hands will grip tightly.
Palmar grasp reflex
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This reflex is present at birth in babies who are born at full term. Infants will fan out and curl and the foot twists in.
Babinski reflex
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This reflex can be observed in full-term babies. When an infant is held so the feet are flat on a surface, the infant will lift one foot after another in a stepping motion.
stepping or walking reflex
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There are weight and height differences between boys and girls by two years of age