Proportional Changes

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Infants
Proportional changes * The infant’s posterior fontanel closes by 6 to 8 weeks of age. * The infant’s anterior fontanel closes by 12 to 18 months of age * Weight – Infants gain approximately 150 to 210 g (about 5 to 7 oz) per week the first 6 months of life. Birth weight is at least doubled by the age of 6 months, and tripled by the age of 12 months. * Height – Infants grow approximately 2.5 cm (1 in) per month the first 6 months of life. Growth occurs in spurts after the age of 6 months, and the birth length increases by 50% by the age of 12 months. * Head circumference – The circumference of infants’ heads increases approximately 1.5 cm (0.6 in) * per month for the first 6 months of life, and then
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* Attachment is seen when infants begin to bond with their parents. This development is seen within the first month, but it actually begins before birth. The process is enhanced when infants and parents are in good health, have positive feeding experiences, and receive adequate rest. * Separation-individuation occurs during the first year of life as infants first distinguish themselves and their primary caregiver as separate individuals, and then develop object permanence. * Separation anxiety begins around 4 to 8 months of age. Infants will protest when separated from parents, which can cause considerable anxiety for parents. * Stranger fear becomes evident between 6 and 8 months of age, when infants are less likely to accept strangers. * Reactive attachment disorder results from maladaptive or absent attachment between the * infant and primary caregiver, and continues through childhood and adulthood

Sleep and Activity * Activity * Play should provide interpersonal contact and educational stimulation. * Infants have short attention spans and will not interact with other children during play (solitary play). * Rattles, teething toys, nesting toys * Playing pat-a-cake, playing with balls, reading a book * Mirrors * Brightly colored toys * Playing with
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