Infant

Very young offspring of humans

"Baby", "Newborn", and "Babyhood" redirect here. For other uses, see Infant (disambiguation), Baby (disambiguation), Newborn (disambiguation), Babyhood (disambiguation), and Babies (disambiguation).

A newborn infant being held by a grown-up man Part of a series on

Human growth
and development
Stages

* Gamete
* Zygote
* Embryo
* Fetus

* Infant
* Toddler

* Child
* Preadolescent
* Adolescent

* Emerging and early adulthood
* Young adult
* Middle adult
* Old adult
* Dying

Biological milestones

* Fertilization
* Pregnancy
* Childbirth
* Walking
* Language acquisition
* Puberty
* Menopause
* Ageing
* Death

Development and psychology

* Pre- and perinatal
* Infant and child
* Nature versus nurture
* Adolescent
* Youth
* Young adult
* Adult
* Maturity

Developmental stage theories

* Attachment
* Ecological
* Psychosocial
* Psychosexual development
* Moral
* Cognitive
* Cultural-historical
* Evolutionary

* v
* t
* e

An infant or baby is the very young offspring of human beings. Infant (from the Latin word infans, meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term baby. The terms may also be used to refer to juveniles of other organisms. A newborn is, in colloquial use, an infant who is only hours, days, or up to one month old. In medical contexts, a newborn or neonate (from Latin, neonatus, newborn) is an infant in the first 28 days after birth;[1] the term applies to premature, full term, and postmature infants.

Before birth, the offspring is called a fetus. The term infant is typically applied to very young children under one year of age; however, definitions may vary and may include children up to two years of age. When a human child learns to walk, they are called a toddler instead.

## Contents

* 1 Other uses
* 2 Physical characteristics
* 2.1 Head
* 2.2 Hair
* 2.3 Length
* 2.4 Weight
* 2.5 Skin
* 2.6 Umbilical cord
* 2.7 Genitals
* 3 Care and feeding
* 3.1 Common care issues
* 3.2 Benefits of touch
* 3.3 Language development
* 3.4 Sleep
* 3.5 Maternal sensitivity
* 3.6 Other
* 4 Behaviour
* 4.1 Emotional development
* 4.2 Response to sounds
* 5 Health issues
* 5.1 Diseases
* 5.2 Mortality
* 6 Babyhood
* 7 References
* 8 External links

## Other uses

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In British English, an infant school is for children aged between four and seven.

As a legal term, infancy is more like being a minor, and continues until a person reaches 18 years of age.[2]

## Physical characteristics

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A newborn's shoulders and hips are wide, the abdomen protrudes slightly, and the arms and legs are relatively long with respect to the rest of their body.

### Head

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Eight-month-old infant; as a common feature, eyes are usually large in relation to the face.

A newborn's head is very large in proportion to the body, and the cranium is enormous relative to his or her face. While the adult human skull is about one seventh of the total body length, the newborn's is about 1⁄4. Normal head circumference for a full-term infant is 33–36 cm at birth.[3] At birth, many regions of the newborn's skull have not yet been converted to bone, leaving "soft spots" known as fontanels. The two largest are the diamond-shaped anterior fontanel, located at the top front portion of the head, and the smaller triangular-shaped posterior fontanel, which lies at the back of the head. Later in the child's life, these bones will fuse together in a natural process. A protein called noggin is responsible for the delay in an infant's skull fusion.[4]

During labour and birth, the infant's skull changes shape to fit through the birth canal, sometimes causing the child to be born with a misshapen or elongated head. It will usually return to normal on its own within a few days or weeks. Special exercises sometimes advised by physicians may assist the process.

### Hair

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Brown thin hair of an one-year-old infant girl

Some newborns have a fine, downy body hair called lanugo. It may be particularly noticeable on the back, shoulders, forehead, ears and face of premature infants. Lanugo disappears within a few weeks. Infants may be born with full heads of hair; others, particularly caucasian infants, may have very fine hair or may even be bald. Amongst fair-skinned parents, this fine hair may be blonde, even if the parents are not. An infant's hair color and texture can change: red can give way to blond, curly can go straight, and thick, dark hair could reappear a lot sparser and lighter.[citation needed] The scalp may also be temporarily bruised or swollen, especially in hairless newborns, and the area around the eyes may be puffy.

### Length

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In developed countries, the average total body length of a newborn is 35.6–50.8 cm (14.0–20.0 in), although premature newborns may be much smaller.

The way to measure a baby's length is to lay the baby down and stretch a measuring tape from the top of the head to the bottom of the heel.

### Weight

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In developed countries, the average birth weight of a full-term newborn is approximately 3.4 kg (7+1⁄2 lb), and is typically in the range of 2.7–4.6 kg (6.0–10.1 lb).

Over the first 5–7 days following birth, the body weight of a term neonate decreases by 3–7%,[5] and is largely a result of the resorption and urination of the fluid that initially fills the lungs, in addition to a delay of often a few days before breastfeeding becomes effective. After the first week, healthy term neonates should gain 10–20 grams/day.[5]

### Skin

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A newborn infant, seconds after delivery. Amniotic fluid glistens on her skin, and the umbilical cord is still attached.

Immediately after birth, a newborn's skin is often grayish to dusky blue in color. As soon as the newborn begins to breathe, usually within a minute or two, the skin's color reaches its normal tone. Newborns are wet, covered in streaks of blood, and coated with a white substance known as vernix caseosa, which is hypothesised to act as an antibacterial barrier. The newborn may also have Mongolian spots, various other birthmarks, or peeling skin, particularly on the wrists, hands, ankles, and feet.

### Umbilical cord

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Main article: Adaptation to extrauterine life

The umbilical cord of a newborn is bluish-white in color. After birth, the umbilical cord is normally cut, leaving a 1–2 inch stub. The umbilical stub will dry out, shrivel, darken, and spontaneously fall off within about 3 weeks. This will later become a belly-button after it heals.

The umbilical cord contains three vessels: two arteries and one vein. The two arteries carry blood from the baby to the placenta while one vein carries blood back to the baby.

### Genitals

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A newborn's genitals are enlarged and reddened, with male infants having an unusually large scrotum. The breasts may also be enlarged, even in male infants. This is caused by naturally occurring maternal hormones and is a temporary condition. Females (and even males) may actually discharge milk from their nipples (sometimes called witch's milk), or a bloody or milky-like substance from the vagina. In either case, this is considered normal and will disappear with time.

## Care and feeding

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Further information: Newborn care and safety

Further information: Infant bathing

A crying infant in Japan in the Naki Sumo Crying Baby Festival

Infants cry as a form of basic instinctive communication.[6] A crying infant may be trying to express a variety of feelings including hunger, discomfort, overstimulation, boredom, wanting something, or loneliness.

Breastfeeding is the recommended method of feeding by all major infant health organizations.[7] If breastfeeding is not possible or desired, bottle feeding is done with expressed breast-milk or with infant formula. Infants are born with a sucking reflex allowing them to extract the milk from the nipples of the breasts or the nipple of the baby bottle, as well as an instinctive behavior known as rooting with which they seek out the nipple. Sometimes a wet nurse is hired to feed the infant, although this is rare, especially in developed countries.

Adequate food consumption at an early age is vital for an infant's development. The foundations of optimum health, growth, and neurodevelopment across the lifespan are established in the first 1000 days of life.[8] From birth to six months, infants should consume only breast milk or an unmodified milk substitute. As an infant's diet matures, finger foods may be introduced as well as fruit, vegetables and small amounts of meat.[9]

As infants grow, food supplements can be added. Many parents choose commercial, ready-made baby foods to supplement breast milk or formula for the child, while others adapt their usual meals for the dietary needs of their child. Whole cow's milk can be used at one year, but lower-fat milk is not recommended until the child is 2 to 3 years old. Weaning is the process through which breast milk is eliminated from the infant's diet through the introduction of solid foods in exchange for milk.[10] Until they are toilet-trained, infants in industrialized countries wear diapers. The transition from diapers to training pants is an important transition in the development of an infant/baby to that of a toddler. Children need more sleep than adults—up to 18 hours for newborn babies, with a declining rate as the child ages. Until babies learn to walk, they are carried in the arms, held in slings or baby carriers, or transported in baby carriages or strollers. Most industrialized countries have laws requiring child safety seats for babies in motor vehicles.

### Common care issues

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* Baby colic
* Bassinet/crib
* Cradle cap
* Day care
* Diaper rash
* Infant massage
* Immunization
* Pacifier
* Paternal bond
* Swaddling
* Teething

### Benefits of touch

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A baby being hugged by a soldier

Experiments have been done with infants up to four months of age using both positive touch (stroking or cuddling) and negative touch (poking, pinching, or tickling). The infants who received the positive touch cried less often and vocalized and smiled more than the infants who were touched negatively. Infants who were the recipients of negative touch have also been linked with emotional and behavioral problems later in life. A lower amount of physical violence in adults has been discovered in cultures with greater levels of positive physical touching.[11]

### Language development

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An infant holding a space-themed baby book

Caregivers of an infant are advised to pick up on the infant's facial expressions and mirror them. Reproducing and empathizing with their facial expressions enables infants to experience effectiveness and to recognize their own actions more easily (see mirror neurons). Exaggeratedly reproduced facial expressions and gestures are recommended, as they are clearer forms of expression. The baby's babbling should also be picked up and repeated. By imitating each other's sounds the first simple dialogues are initiated.[12] Accentuated pronunciation and melodic intonation make it easier to recognize individual words in a sentence.[13] However, it is not advisable to use simplified "baby talk" (e.g. "Did you 'ouch'?" instead of, "Did you hurt yourself?").[14]

Even if parents cannot yet understand infants' babbling, a timely response by parents to babbling leads to faster language acquisition.[15] This was confirmed by researchers who first studied mothers' behavior towards 8-month-old infants and later tested the infants' vocabulary when they were 15 months old.[16] A first important development of infants is the discovery that they can influence their parents through babbling (development of intentional communication).[16] Parents can encourage this by engaging with their infants in babbling. This in turn promotes further language development, as infants then turn to their parents more often.[15]

Previous studies have shown that the infant's speech is encouraged when parents, for example, smile in the infant's direction or touch the infant every time the infant looks at them and babbles. It also helps if parents respond to what they think their baby is saying (for example, giving a ball or commenting when the baby looks at the ball and babbles).[15] Responding to sounds produced when the baby looks at an object (object-directed vocalizations) thus provide an opportunity to learn the name of the object. In this way, babies also learn that sounds are associated with objects.[16] However, language development is only achieved if parents react positively (e.g. smile) in response to the infant's babbling. A high response rate without a connection to the infant's utterances does not lead to language promotion.[16] It is detrimental to language development if a mother instead tries to divert the infant's attention to something else.[17]

### Sleep

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See also: SIDS

A sleeping infant

A 2018 review analysed 146 studies on infant sleep behavior and listed several factors that show an effect on sleep duration and the number of night wakings. For example, stimulating daytime activities, reading aloud before sleeping, early bedtime, a sleep routine, and avoiding television and media exposure before bedtime are associated with longer sleep duration and fewer nighttime awakenings.[18]: S. 24

Furthermore, strong parental involvement at falling asleep is associated with shorter sleep duration, slower falling asleep and more frequent night-time awakenings in the studies analysed. Strong parental involvement is understood to include parental presence, cradling, or breastfeeding at bedtime, as well as carrying the infant to sleep and then putting the infant down. Strong parental involvement has a negative effect on infant sleep because the infant cannot develop the ability to self-soothe. On the other hand, low parental involvement at bedtime gives the infant room to learn self-soothing and self-regulation.[18]: S. 24

In 2020, a Finnish study established (according to the research leader) for the first time a reference value for infant sleep quality based on a large data set (about 5,700 babies).[19][20] Almost 40% of the participating parents with eight-month-old babies said they were worried about their sleep. In fact, sleep problems were common; however, children fall asleep faster, wake up less often during the night and stay awake less late at night the older they get. At the same time, total sleep time decreases.

The study was also able to determine reference values for normal sleep (see table). Children who sleep significantly less than average would usually benefit from supportive measures, for which a number of methods would be available (a discussion with the pediatrician or see, for example, the article on sleep training).[15]

| Time until

falling asleep

| Wakings

per night

| Waking time

per night

|
|
|

12 months  |  0 – 30 min |  0x – 2.5x  |  0 – 20 min
30 – 40 min  |  2x – 4x  |  20 – 45 min
> 40 min  |  > 4x  |  > 45 min
24 months  |  0 – 30 min  |  0x – 1x  |  0 – 8 min
30 – 45 min  |  1x – 2x  |  8 – 15 min
> 40 min  |  > 2x  |  > 40 min

= normal sleep
= Sleep hygiene should be improved
= it is recommended to seek help (pediatrician, sleep counselling).

### Maternal sensitivity

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Maternal sensitivity plays a particular role in the relationship with the infant and for favorable emotional development. This means being attentive to the infant's behavioral expressions, not misinterpreting the infant's expressions because of one's own moods, reacting immediately to the situation and finding a response that is appropriate to the context and the expressed needs. A secure attachment is promoted through empathetic and adequate as well as prompt responses.[21][22][12] In accordance with their basic needs, infants show an inborn behavior of seeking closeness to the mother – or to another primary caregiver – and thus in turn foster an attachment. When separated from the mother, infants protest by crying and by body movements.

### Other

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An infant from Uganda playing with stoves

Wearing has a calming effect on infants. A 2013 study showed that infants placed in a cradle cried and kicked more often and had an increased heart rate (so the infants were stressed), while those picked up and carried by the mother while walking around calmed down significantly. The effect of being held motionless in the arm was intermediate between that of being carried around and that of being put down.[23] That carrying (e.g., in a baby sling) makes infants more content and makes them cry less had already been shown in a randomized study in 1986.[24]

For infant feeding, breastfeeding is recommended by all major infant health organizations.[7]

Many airlines refuse boarding for all babies aged under 7 days (for domestic flights) or 14 days for international flights. Asiana Airlines allows babies to board international flights at 7 days of age. Garuda Indonesia disallows all babies under the age of 14 days to board any flights.

Delta Air Lines allows infants to travel when they are less than 7 days old when they present a physician travel approval letter. Skywest will not allow an infant less than 8 days old on board.[25]

## Behaviour

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### Emotional development

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Eight-month-old sororal twin sisters

Attachment theory is primarily an evolutionary and ethological theory whereby the infant or child seeks proximity to a specified attachment figure in situations of alarm or distress for the purpose of survival.[26] The forming of attachments is considered to be the foundation of the infant/child's capacity to form and conduct relationships throughout life. Attachment is not the same as love or affection although they often go together. Attachment and attachment behaviors tend to develop between the age of 6 months and 3 years. Infants become attached to adults who are sensitive and responsive in social interactions with the infant, and who remain as consistent caregivers for some time. Parental responses lead to the development of patterns of attachment, which in turn lead to 'internal working models' which will guide the individual's feelings, thoughts, and expectations in later relationships.[27] There are a number of attachment 'styles' namely 'secure', 'anxious-ambivalent', 'anxious-avoidant', (all 'organized') and 'disorganized', some of which are more problematic than others. A lack of attachment or a seriously disrupted capacity for attachment could potentially amount to serious disorders.[28]

Infants develop distinct relationships to their mothers, fathers, siblings, and non-familial caregivers.[29] Beside the dyadic attachment relationships also a good quality of the triadic relationships (mother – father – infant) is important for infant mental health development.[30][31]

### Response to sounds

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Infants respond to the sound of snake hissing, angry voices of adults, the crackling sound of a fire, thunder, and the cries of other infants. They have a drop in heart rate, their eyes blinking, increased turning toward the speakers or parent, all of these indicating that they were paying more attention. This is believed to be an evolutionary response to danger. Babies' ability to accurately locate sounds is refined during their first year.[32]

## Health issues

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### Diseases

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Further information: Neonatology

The infant is undergoing many adaptations to extrauterine life, and its physiological systems, such as the immune system, are far from fully developed. Potential diseases of concern during the neonatal period include:

* Neonatal jaundice
* Infant respiratory distress syndrome
* Neonatal lupus erythematosus
* Neonatal conjunctivitis
* Neonatal tetanus
* Neonatal sepsis
* Neonatal bowel obstruction
* Benign neonatal seizures
* Neonatal diabetes mellitus
* Neonatal alloimmune thrombocytopenia
* Neonatal herpes simplex
* Neonatal hemochromatosis
* Neonatal meningitis
* Neonatal hepatitis
* Neonatal hypoglycemia

### Mortality

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Main article: Infant mortality

An infant being immunized in Bangladesh

Infant mortality is the death of an infant in the first year of life, often expressed as the number of deaths per 1000 live births (infant mortality rate). Major causes of infant mortality include dehydration, infection, congenital malformation and SIDS.[33]

This epidemiological indicator is recognized as a very important measure of the level of health care in a country because it is directly linked with the health status of infants, children, and pregnant women as well as access to medical care, socioeconomic conditions, and public health practices.[34][35]

There is a positive relationship between national wealth and good health. The rich and industrialized countries of the world, prominently Canada, the United Kingdom, the United States, and Japan, spend a large proportion of their wealthy budget on the health care system. As, a result, their health care systems are very sophisticated, with many physicians, nurses, and other health care experts servicing the population. Thus, infant mortality is low. On the other hand, a country such as Mexico, which spends disproportionately less of its budget on healthcare, suffers from high mortality rates. This is because the general population is likely to be less healthy.[36] In the U.S., infant mortality rates are especially high in minority groups. For instance, non-Hispanic black women have an infant mortality rate of 13.63 per 1000 live births whereas in non-Hispanic white women it was much lower at a rate of 5.76 per 1000 live births.[37] The average infant mortality rate in the U.S. is 6.8 per 1000 live births.[38]

## Babyhood

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Babyhood is a critical period in personality development when the foundations of adult personality are laid.[39] In contrast toddler is used to denote a baby that has achieved relative independence, in moving about, and feeding.[40]

## References

[edit | edit source]

1. ^ "Neonate". Merriam-Webster online dictionary. Merriam-Webster. Archived from the original on 2007-03-11. Retrieved 2007-03-27.
2. ^ "Infancy". Law.com Legal Dictionary. Law.com. Archived from the original on 2015-09-05. Retrieved 2015-09-30.
3. ^ Wallace, Donna K.; Cartwright, Cathy C. (2007). Nursing Care of the Pediatric Neurosurgery Patient. Berlin: Springer. p. 40\. ISBN 978-3-540-29703-1.
4. ^ Warren SM, Brunet LJ, Harland RM, Economides AN, Longaker MT (2003-04-10). "The BMP antagonist noggin regulates cranial suture fusion". Nature. 422 (6932): 625–9. Bibcode:2003Natur.422..625W. doi:10.1038/nature01545. PMID 12687003. S2CID 4331659.
5. ^ a b Neonatology Considerations for the Pediatric Surgeon at eMedicine
6. ^ Chicot, Dr Rebecca (2015-12-03). The Calm and Happy Toddler: Gentle Solutions to Tantrums, Night Waking, Potty Training and More. Random House. ISBN 978-1-4735-2759-1.
7. ^ a b Gartner LM, Morton J, Lawrence RA, Naylor AJ, O'Hare D, Schanler RJ, Eidelman AI (February 2005). "Breastfeeding and the Use of Human Milk". Pediatrics. 115 (2): 496–506. doi:10.1542/peds.2004-2491. PMID 15687461.
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9. ^ Wells, Dilys (January 1995). "Infant Feeding". Nutrition & Food Science. 95 (2): 42–44. doi:10.1108/00346659510078312.
10. ^ Marriott and Foote, L.D. and K.D. (2003). Weaning of infants. (Review). 88.6. Academic OneFile. ISBN 978-1-4129-0475-9.
11. ^ Field, T. (2002). "Infants' Need for Touch". Human Development. 45 (2): 100–103. doi:10.1159/000048156. S2CID 144155181.
12. ^ a b Hartmut Kasten. "Entwicklungspsychologische Grundlagen der frühen Kindheit und frühpädagogische Konsequenzen" (PDF) (in German). Kostenloser Volltext
13. ^ Erik Thiessen, Emily Hill, Jenny Saffran (January 2005), "Infant-Directed Speech Facilitates Word Segmentation", Infancy, vol. 7, no. 1, pp. 53–71, doi:10.1207/s15327078in0701_5, PMID 33430544`{{citation}}`: CS1 maint: multiple names: authors list (link)
14. ^ Gehirn&GeistSerie Kindesentwicklung No. 1, February 2014, "Püppi, muttu AA machen?", p. 63.
15. ^ a b c d "Parents, listen next time your baby babbles". 2014-08-27.
16. ^ a b c d Julie Gros-Louis, Meredith J. West, Andrew P. King (July 2014), "Maternal Responsiveness and the Development of Directed Vocalizing in Social Interactions", Infancy, vol. 19, no. 4, pp. 385–408, doi:10.1111/infa.12054`{{citation}}`: CS1 maint: multiple names: authors list (link)
17. ^ Smith J, Levickis P, Eadie T, Bretherton L, Conway L, Goldfeld S (January 2019). "Associations between early maternal behaviours and child language at 36 months in a cohort experiencing adversity". International Journal of Language & Communication Disorders. 54 (1): 110–122. doi:10.1111/1460-6984.12435. hdl:11343/284733. PMID 30387273. S2CID 54389163.
18. ^ a b Cláudia Castro Dias, Bárbara Figueiredo (2019-03-06), "Sleep-wake behaviour during the first 12 months of life and associated factors: a systematic review", Early Child Development and Care, vol. 190, no. 15, pp. 1–33, doi:10.1080/03004430.2019.1582034, hdl:1822/59691, ISSN 0300-4430, S2CID 151246725, retrieved 2020-11-01
19. ^ "New study provides criteria for good infant sleep for the first time – individual variations large – Press release – THL".
20. ^ Paavonen EJ, Saarenpää-Heikkilä O, Morales-Munoz I, Virta M, Häkälä N, Pölkki P, Kylliäinen A, Karlsson H, Paunio T, Karlsson L (May 2020). "Normal sleep development in infants: findings from two large birth cohorts" (PDF). Sleep Medicine. 69: 145–154. doi:10.1016/j.sleep.2020.01.009. PMID 32087408. S2CID 211253429.
21. ^ Kathrin Keller-Schuhmacher (2010) Bindung – von der Theorie zur Praxis: worauf kommt es an? Referat anlässlich der Fachtagung der AWO vom 8. November 2010 in Freiburg i.Br., (PDF; 111 kB).
22. ^ Helmut Johnson (2006) Bindungsstörungen Material zur Systemischen Arbeit in Erziehung und Betreuung. (PDF; 72 kB).
23. ^ Esposito G, Yoshida S, Ohnishi R, Tsuneoka Y, Rostagno Mdel C, Yokota S, Okabe S, Kamiya K, Hoshino M, Shimizu M, Venuti P, Kikusui T, Kato T, Kuroda KO (May 2013). "Infant calming responses during maternal carrying in humans and mice". Current Biology. 23 (9): 739–45. doi:10.1016/j.cub.2013.03.041. PMID 23602481.
24. ^ Urs Hunziker, Ronald Barr (1986-05-01), "Increased Carrying Reduces Infant Crying: A Randomized Controlled Trial", Pediatrics, vol. 77, no. 5, pp. 641–648, ISSN 0031-4005, PMID 3517799, retrieved 2020-02-02
25. ^ Infant Age Restrictions Archived 2016-03-26 at the Wayback Machine. Delta Airlines. Retrieved on 2013-04-27.
26. ^ Tronick, Edward Z.; Morelli, Gilda A.; Ivey, Paula K. (1992). "The Efe forager infant and toddler's pattern of social relationships: Multiple and simultaneous". Developmental Psychology. 28 (4): 568–577. doi:10.1037/0012-1649.28.4.568. "Until recently, scientific accounts ... of the infant's early social experiences converged on the view that the infant progresses from a primary relationship with one individual... to relationships with a growing number of people... This is an epigenetic, hierarchical view of social development. We have labeled this dominant view the continuous care and contact model (CCC...). The CCC model developed from the writings of Spitz..., Bowlby..., and Provence and Lipton... on institutionalized children and is represented in the psychological views of Bowlby...[and others]. Common to the different conceptual frameworks is the belief that parenting practices and the infant's capacity for social engagement are biologically based and conform to a prototypical form. Supporters of the CCC model generally recognize that the infant and caregiver are able to adjust to a range of conditions, but they consider the adjustments observed to reflect biological variation. However, more extreme views (e.g., maternal bonding) consider certain variants as non adaptive and as compromising the child's psychological development. Bowlby's concept of monotropism is an exemplar of the CCC perspective...".
27. ^ Bretherton, I. and Munholland, K., A. Internal Working Models in Attachment Relationships: A Construct Revisited. Handbook of Attachment:Theory, Research and Clinical Applications 1999 eds Cassidy, J. and Shaver, P., R. Guilford press ISBN 1-57230-087-6[page needed]
28. ^ Cicchetti, Dante; Carlson, Vicki (30 June 1989). Child Maltreatment: Theory and Research on the Causes and Consequences of Child Abuse and Neglect. ISBN 9780521379694. Retrieved 21 December 2018.
29. ^ Klitzing K von, Simoni H, Amsler F, Burgin D: The role of the father in early family interactions. Inf Mental Health J 1999; 20: 222–37.
30. ^ von Klitzing K, Simoni H, Bürgin D (February 1999). "Child development and early triadic relationships". The International Journal of Psychoanalysis. 80 ( Pt 1): 71–89. doi:10.1516/0020757991598576. PMID 10216817.
31. ^ von Klitzing K, Bürgin D (January 2005). "Parental capacities for triadic relationships during pregnancy: Early predictors of children's behavioral and representational functioning at preschool age". Infant Mental Health Journal. 26 (1): 19–39. doi:10.1002/imhj.20032. PMID 28682511.
32. ^ Erlich, Nicole; Lipp, Ottmar V.; Slaughter, Virginia (2013). "Of hissing snakes and angry voices: human infants are differentially responsive to evolutionary fear-relevant sounds". Developmental Science. 16 (6): 894–904. doi:10.1111/desc.12091. PMID 24118715.
33. ^ Garrett, Eilidh (2007). Infant Mortality: A Continuing Social Problem. Ashgate Pub Co. ISBN 978-0-7546-4593-1.[page needed]
34. ^ Hertz E, Hebert JR, Landon J (July 1994). "Social and environmental factors and life expectancy, infant mortality, and maternal mortality rates: results of a cross-national comparison". Soc Sci Med. 39 (1): 105–14. doi:10.1016/0277-9536(94)90170-8. PMID 8066481.
35. ^ Etchegoyen G, Paganini JM (April 2007). "The relationship between socioeconomic factors and maternal and infant health programs in 13 Argentine provinces" (PDF). Rev Panam Salud Publica (in Spanish). 21 (4): 223–30. doi:10.1590/S1020-49892007000300005. PMID 17612466. Archived (PDF) from the original on 2018-04-21.
36. ^ Brym, Robert (2007). Sociology: Your Compass for a New World. Wadsworth/Cengage Learning. p. 546\. ISBN 978-0-495-09912-3.
37. ^ Kuehn, B. M. (2008). "Infant Mortality". JAMA: The Journal of the American Medical Association. 300 (20): 2359. doi:10.1001/jama.2008.642.
38. ^ Infant Mortality Rate (Deaths per 1,000 Live Births), Linked Files, 2006–2008 Archived 2012-06-12 at the Wayback Machine. statehealthfacts.org
39. ^ Human Growth Development and Learning 2004 Ed. p. 50. ISBN 971-23-3911-4 2004 "... is mainly through prespeech forms of crying, babbling, gesturing, and emotional expressions. In babyhood, understanding comes from a combination of sensory exploration, motor manipulation, and, toward the end of babyhood, from questions to answers. Babyhood is regarded as a critical period in personality development because it is the time when the foundations of adult personality are laid."
40. ^ Developmental Psychology. p. 121 ISBN 971-23-2463-X 1998 "However, Hurlock (1982) cites that infancy, compared to babyhood, is characterized by extreme helplessness. The word baby may likewise suggest a helpless individual; hence, the word toddler has been increasingly used to denote a baby that has achieved enough control of his body to permit relative independence, such as' moving about, feeding himself, etc. Characteristics of Babyhood The most important characteristics of babyhood are listed below: 1. It is the true foundation age .."

## External links

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Wikiquote has quotations related to Babies.

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Look up infant in Wiktionary, the free dictionary.

* American Academy of Pediatrics
* The impact of buggy orientation on parent-infant interaction and infant stress
* The World Health Report 2005 – Make Every Mother and Child
* Infant eyesight – University of Illinois
* Simkin, Penny; Whalley, Janet; Keppler, Ann (1991). Pregnancy, Childbirth and the Newborn: The Complete Guide (Revised ed.). Meadowbook Press. ISBN 978-0-88166-177-4.

Preceded by

Fetus

|  Stages of human development
Infancy  | Succeeded by

Toddlerhood

|
|

* v
* t
* e

Infants and their care

Health (Pediatrics)|

* Baby food
* Birth weight
* Breast pump
* Breastfeeding
* Breastfeeding and medications
* Bottle feeding
* Colic
* Immunizations
* Cradle cap
* Cross eyed
* Failure to thrive
* Immunization
* Infant and toddler safety
* Infant bathing
* Infant food safety
* Infant formula
* Infant massage
* Infant food safety
* Infant nutrition
* Infant respiratory distress syndrome
* Infant sleep training
* Neo-natal intensive care unit
* Newborn care and safety
* Oral rehydration therapy
* Pedialyte
* Preterm birth
* Shaken baby syndrome
* Soy formula
* Sudden infant death syndrome
* Breastfeeding and mental health

Development|

* Attachment parenting
* Baby-led weaning
* Baby talk
* Babbling
* Childbirth
* Congenital disorder
* Crawling
* Infant visual development
* Diaper rash
* Gestational age
* Infant cognitive development
* Kangaroo care
* Mother
* Nursery Rhyme
* Object permanence
* Parent
* Parenting
* Peekaboo
* Play
* Prenatal development
* Prenatal development table
* Teething
* Types of crying
* Walking
* Weaning

Socialization and Culture|

* Attachment
* Babysitting
* Child abuse
* Child custody
* Child's rights
* UN Child rights
* Circumcision
* Daycare
* Foster care
* Grandparent visitation
* Infant swimming
* Milk bank
* Nanny
* Wet nurse

Infant care and equipment|

* Baby bouncer
* Baby gate
* Baby monitor/Hidden camera
* Baby powder
* Baby shampoo
* Baby toy
* Baby walker
* Bib
* Baby swing
* Baby transport
* Bassinet
* Car seat safety
* Cloth diaper
* Cradle board
* Diaper
* Diaper bag
* Baby wipes
* Haberman Feeder
* High chair
* Infant bed (American 'crib' and 'cradle', British 'cot')
* Infant carrier
* Infant clothing
* Pacifier
* Playpen
* Stroller
* Supplemental nursing system
* Swaddling
* Swim diaper
* Teether
* Travel cot

Other topics|

* Baby shower
* Babywearing
* Child neglect
* Closed adoption
* Cry room
* Infant ear piercing
* Open adoption
* Prenatal cocaine exposure
* Neonatal withdrawal syndrome
* Parental child abduction
* Parental responsibility
* Parenting plan
* Paternity
* Paternity fraud

* v
* t
* e

Pregnancy and childbirth

Planning|

* Birth control
* Natural family planning
* Pre-conception counseling

Conception|

* Assisted reproductive technology
* artificial insemination
* fertility fraud
* fertility medication
* in vitro fertilisation
* partner-assisted reproduction
* Fertility awareness
* Unintended pregnancy

Testing|

* 3D ultrasound
* Obstetric ultrasonography
* Pregnancy test
* home testing
* Prenatal diagnosis

Prenatal|

| Anatomy|

* Amniotic fluid
* Amniotic sac
* Endometrium
* Placenta

|

Development|

* Fetus
* Fundal height
* Gestational age
* Human embryogenesis
* Maternal physiological changes
* Postpartum physiological changes

Care|

* Nutrition
* environmental toxicants
* in pregnancy
* prenatal
* Concomitant conditions
* drinking
* diabetes mellitus
* smoking
* vaping
* SLE
* Sexual activity during pregnancy

Procedures|

* Amniocentesis
* Cardiotocography
* Chorionic villus sampling
* Nonstress test
* Abortion

Childbirth|

| Preparation|

* Bradley method
* Hypnobirthing
* Lamaze
* Nesting instinct

|

Roles|

* Mother
* Newborn
* Preterm birth
* Postterm pregnancy
* Doula
* Birth attendant
* Men's roles
* Midwife
* Obstetrician
* Perinatal nurse
* Traditional birth attendant

Delivery|

* Pelvimetry / Bishop score
* cervical dilation
* cervical effacement
* position
* Bloody show
* Uterine contraction
* Vaginal delivery
* Presentation
* breech
* cephalic
* shoulder
* Rupture of membranes
* Caesarean
* Childbirth positions
* Home birth
* Labor induction
* Multiple birth
* Natural childbirth
* Silent birth
* Unassisted childbirth
* Water birth
* Placental expulsion

Postpartum|

| Maternal|

* Postpartum care
* Postpartum confinement
* Sex after pregnancy
* Psychiatric disorders of childbirth
* Postpartum physiological changes

|

Roles|

* Doula
* Health visitor
* Lactation consultant
* Monthly nurse
* Confinement nanny

Infant|

* Adaptation to extrauterine life
* Apgar score
* Child care
* Congenital disorders

Obstetric history|

* Gravidity and parity

* v
* t
* e

Development of the human body

Before birth|

* Development
* Zygote
* Embryo
* Fetus
* Gestational age

Birth and after|

* Birth
* Child development
* stages
* early
* Puberty
* Adult development
* Ageing
* Senescence
* Death

Phases|

* Early years
* Infant
* Toddler
* Early childhood
* Childhood
* Child
* Youth
* Preadolescence
* Adolescence
* Emerging adulthood
* Adulthood
* Young adult
* Middle adult
* Elder adult

Social and legal|

* Minor
* Age of majority

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