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From birth, babies are learning to communicate. The communication begins with crying and then begins to develop into cooing and babbling. Infants develop their speech by mimicking those around them. Gestures and facial expressions are all part of language development.
Visual acuity in newborns is very limited as well compared to adults – being 12 to 25 times worse than that of a normal adult. [3] It is important to note that the distance from the cornea at the front of the infant's eye to the retina which is at the back of eye is 16–17 mm at birth, 20 to 21 mm at one year, and 23–25 mm in adolescence ...
These scores measure a variety of areas including the "neurological, social, and behavioral aspects of a newborn's functioning." [ 1 ] Additionally, "factors such as reflexes, responses to stress, startle reactions, cuddliness, motor maturity, ability to habituate to sensory stimuli, and hand-mouth coordination are all assessed."
Newborns typically lose 7–10% of their birth weight in the first few days, but they usually regain it within two weeks. [ 17 ] During the first month, infants grow about 1 to 1.5 inches (2.5 to 3.8 cm) and gain weight at a rate of about 1 ounce (28 g) per day.
Newborn infants do not seem to experience fear or have preferences for contact with any specific people. In the first few months they only experience happiness, sadness, and anger. [109] [110] A baby's first smile usually occurs between 6 and 10 weeks, as this usually occurs during social interactions it is called a "social smile". [111]
During toddlerhood, babies begin learning how to walk, talk, and make decisions for themselves. An important characteristic of this age period is the development of language , where children are learning how to communicate and express their emotions and desires through the use of vocal sounds, babbling, and eventually words. [ 104 ]
By 2nd and 3rdmonth of their life, babies develop early consonant sounds like /k/ and /g/. The second half of the first year is the babbling phase where babies begin with repeated sounds like "babababa" or "mamamama". Infants vocalising more tend to develop stronger communication skills. [23] Early communication skills vary from child to child.
This maneuver should yield the opposite information and validate the findings of the first maneuver. If the woman enters labor, this is the part which will most likely come first in a vaginal birth. If it is the head and is not actively engaged in the birthing process, it may be gently pushed back and forth.