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Sibling

 
Sibling

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Sibling



 
 
A sibling is a brother or a sister; that is, any person who shares the same parents.

In most societies throughout the world, siblings usually grow up together and spend a good deal of their childhood with each other.






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William Adolphe Bouguereau (1825 1905)   Two Sisters (1901)
Princes
A sibling is a brother or a sister; that is, any person who shares the same parents.

In most societies throughout the world, siblings usually grow up together and spend a good deal of their childhood with each other. This genetic and physical closeness may be marked by the development of strong emotional associations such as love
Love

Love is any of a number of emotions and experiences related to a sense of strong affection and attachment . The word wikt:en:love can refer to a variety of different feelings, states, and attitudes, ranging from generic pleasure to intense interpersonal attraction....
 or enmity. The sibling bond is often complicated and is influenced by factors such as parental treatment, birth order
Birth order

Birth order is defined as a person's rank by age among his or her siblings. Birth order is often believed to have a profound and lasting effect on psychological development....
, personality
Personality psychology

Personality psychology is a branch of psychology that studies personality and individual differences. One emphasis in this area is to construct a coherent picture of a person and his or her major psychological processes ....
, and people and experiences outside the family.

Types of siblings


Full sibling

A full sibling (full brother or full sister), is a sibling that shares both biological or adoptive parents.

Half sibling

A half sibling (half brother or half sister) is a sibling with one shared biological or adoptive parent
Parent

A parent is a mother or father; one who sexual reproduction or gives birth to and/or nurtures and raises an offspring. The different roles of parents vary throughout the tree of life, and are especially complex in human culture....
. A half sibling that shares the same mother
Mother

A mother is a biological and/or Maternal bond female parent of an offspring. Because of the complexity and differences of the social, cultural, and religious definitions and roles, it is challenging to define a mother in a universally accepted definition....
 (but different father
Father

The father is defined as the male parent of an offspring. The adjective "paternal" refers to father, parallel to "maternal" for mother.According to the anthropologist Maurice Godelier, the parental role assumed by human males is a critical difference between human society and that of humans' closest biological relatives - chimpanzees and b...
s) is known as a uterine sibling, whereas one that shares the same father is known as an agnate sibling. In law, the term consanguine is used in place of agnate. Half siblings can have a wide variety of interpersonal relationships, from a bond as close as any full siblings, to total strangers.

At law (and especially inheritance
Inheritance

Inheritance is the practice of passing on property, Title s, debts, and obligations upon the death of an individual. It has long played an important role in human societies....
 law) half siblings were often accorded unequal treatment. Old English common law
Common law

Common law refers to law and the corresponding Legal systems of the world developed through legal opinion of courts and similar tribunals , rather than through statute law or Executive ....
 at one time incorporated inequalities into the laws of intestate succession
Intestacy

Intestacy is the condition of the estate of a person who dies owning property greater than the sum of his or her enforceable debts and funeral expenses without having made a valid will or other binding declaration; alternatively where such a will or declaration has been made, but only applies to part of the estate , the remaining estate fo...
, with half siblings taking only half as much property of their intestate siblings' estates as other siblings of full-blood. Unequal treatment of this type has been wholly abolished in England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
 and throughout the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
.

Stepsibling

A stepsibling (stepbrother or stepsister) is a sibling with whom an individual bears no blood or equivalent adoptive relation, and is related by the marriage or relationship of one parent of the individual to one parent of the sibling.

Siblings through breast feeding

Milk brothers or sisters are children breastfed
Breastfeeding

Breastfeeding is the feeding of an infant or young child with breast milk directly from human breasts rather than from a baby bottle or other container....
 by a woman other than their biological mother, a practice known as wetnursing and once widespread in the developed world, as it still is in parts of the developing world.

In Islam
Islam

Islam is a Monotheism, Abrahamic religion originating with the teachings of the Prophets of Islam Muhammad, a 7th century Arab religious and political figure....
 those who are fed in this way become siblings to the biological children of their wetnurse, provided that they are less than two years old and have been breastfed five times or more by her. Islamic law (shariah) codifies the relationship between these people, and certain specified relatives, as rada
Rada (fiqh)

Rada or rida'a is a List of Islamic terms in Arabic from fiqh meaning "the suckling which produces the legal impediment to marriage of foster-kinship"....
; once they are adult, they are mahram
Mahram

In Islamic sharia legal terminology, a mahram is an unmarriageable kin with whom sexual intercourse would be considered incestuous, a punishable taboo....
, meaning that they are not allowed to marry each other, and the rules of modesty known as hijab
Hijab

Hijab or ?ijab is the Arabic word for "curtain / cover" , based on the root ??? meaning "to cover, to veil, to shelter". In popular use, hijab means "head cover and modest dress for women" among Muslims, which most Islamic legal systems define as covering everything except the face, feet and hands in public....
 are relaxed, as with other family members.

Irish twins

"Irish twins" and "Vatican twins" are slang
Slang

Slang is the use of highly informal words and expressions that are not considered standard in the speaker's dialect or language....
 terms for siblings who are not actually twin
Twin

Twins are two offspring resulting from the same pregnancy, usually childbirth in close succession. They can be the same or different sex. Twins can either be monozygotic or dizygotic ....
s, but rather, were born less than 12 months apart —possibly in the same calendar year and/or school year. It refers to the perception that Irish Catholic
Irish Catholic

Irish Catholics is a term used to describe people of Catholic or Roman Catholic background who are Irish people or of Irish descent.The term is of note due to Irish immigration to many countries of the English speaking world, particularly as a result of the Irish Famine in the 1840s - 1850s, following which the population declined by over...
 families have many children, often with little time between births. It is sometimes considered derogatory. Similarly, "Irish triplets" refers to three siblings born within a three year time period.

Godsiblings

A Godsibling (Godbrother or Godsister) is determined when one child is a Godchild of another child's parents. For example, if a child has a Godparent, and that Godparent has a child of his/her own, the child of the Godparent and the Godchild are Godsiblings. Godsiblings can either be related or non-related to each other.

Foster Siblings

A Foster Sibling are children whom are raised in the same Foster Home, or are also Foster Children of the individual's Parents, or Foster Parents' biological children.

Birth order


Birth order is a person's rank by age among his or her siblings. Typically, researchers classify siblings as “eldest”, “middle child”, and “youngest” or simply distinguish between “firstborn” and “later born” children.

Birth order is commonly believed in pop psychology and popular culture to have a profound and lasting effect on psychological development and personality
Personality psychology

Personality psychology is a branch of psychology that studies personality and individual differences. One emphasis in this area is to construct a coherent picture of a person and his or her major psychological processes ....
. For example, firstborns are seen as conservative and high achieving, middle children as natural mediators, and youngest children as charming and outgoing. In his book Born to Rebel, Frank Sulloway
Frank Sulloway

Frank J. Sulloway is a visiting Scholar in the Institute of Personality and Social Research at the University of California, Berkeley, and a Visiting Professor in the Department of Psychology....
 argues that firstborns to be more conscientious, more socially dominant, less agreeable, and less open to new ideas compared to laterborns. Literature review
Literature review

A literature review is a body of text that aims to review the critical points of current knowledge on a particular topic.Most often associated with science-oriented literature, such as a thesis, the literature review usually precedes a research proposal, methodology and results section....
s that have examined many studies and attempted to control for confounding variables tend to find minimal effects for birth order on personality. In her review of the scientific literature, Judith Rich Harris
Judith Rich Harris

Judith Rich Harris is a psychologist and the author of The Nurture Assumption, a book criticizing the belief that parents are the most important factor in child development, and presenting evidence which contradicts that belief....
 suggests that birth order effects may exist within the context of the family of origin, but that they are not enduring aspects of personality.

Some research has found that firstborn children have slightly higher IQs on average than later born children. However, other research finds no such effect.

In practice, systematic birth order research is a challenge because it is difficult to control for all of the variables that are statistically related to birth order. For example, large families are generally lower in socioeconomic status than small families, so third born children are more likely than firstborn children to come from poorer families. Spacing of children, parenting style, and gender are additional variables to consider.

Regressive behavior at the birth of a new sibling


The arrival of a new baby is especially stressful for firstborns and for siblings between 3 and 5 years old. Regressive behavior and aggressive behavior, such as handling the baby roughly, can also occur. All of these symptoms are considered to be typical and developmentally appropriate for children between the ages of 3-5. While some can be prevented, the remainder can be improved within a few months. Regressive behavior may include demand for a bottle, thumb sucking, requests to wear diapers (even if toilet-trained), or requests to carry a security blanket
Security blanket

A security blanket is any familiar object whose presence provides comfort or security to its owner, such as the literal blankets often favoured by small children....
.

Regressive behaviors are the child’s way of demanding the parents’ love and attention.

The American Academy of Pediatrics
American Academy of Pediatrics

The American Academy of Pediatrics was founded in 1930 and now has 60,000 primary care pediatricians, pediatric medical subspecialists and pediatric surgical specialists as members....
 suggests that instead of protesting or telling children to act their age, parents should simply grant their requests without becoming upset. The affected children will soon return to their normal routine when they realize that they now have just as important a place in the family as the new sibling. Most of the behaviors can be improved within a few months.

The University of Michigan Health System
University of Michigan Health System

The University of Michigan Health System is the wholly-owned academic medical center of the University of Michigan in Ann Arbor, Michigan. It includes the U-M Medical School, with its Faculty Group Practice and many research laboratories; the U-M Hospitals and Health Centers, which includes University Hospital, C.S....
 advises that most occurrences of regressive behavior are mild and to be expected; however, it recommends parents to contact a pediatrician or child psychologist if the older child tries to hurt the baby, if regressive behavior does not improve within 2 or 3 months, or if the parents have other questions or concerns.

Sibling rivalry


Sibling rivalry is a type of competition or animosity among brothers and sisters. It appears to be particularly intense when children are very close in age and of the same gender. Sibling rivalry can involve aggression
Aggression

In psychology, as well as other social science and behavioral sciences, aggression refers to behavior between members of the same species that is intended to cause pain or harm....
; however, it is not the same as sibling abuse
Sibling abuse

Sibling abuse is the physical abuse, emotional abuse, and/or sexual abuse of one sibling by another.It is estimated that as many as three in 100 children are dangerously abusive towards a sibling, making sibling abuse more common than child abuse by parents, and more common than spousal abuse....
 where one child victimizes another.

Sibling rivalry usually starts right after, or before, the arrival of the second child. While siblings will still love each other, it is not uncommon for them to bicker and be malicious to each other. Children are sensitive from the age of one year to differences in parental treatment and by three years they have a sophisticated grasp of family rules and can evaluate themselves in relation to their siblings. Sibling rivalry often continues throughout childhood and can be very frustrating and stressful to parents. One study found that the age group 10 to 15 reported the highest level of competition between siblings Sibling rivalry can continue into adulthood and sibling relationships can change dramatically over the years. Approximately one-third of adults describe their relationship with siblings as rivalrous or distant. However, rivalry often lessens over time and at least 80 percent of siblings over age 60 enjoy close ties.

Each child in a family competes to define who they are as individuals and want to show that they are separate from their siblings. Sibling rivalry increases when children feel they are getting unequal amounts of their parents’ attention, where there is stress in the parents’ and children’s lives, and where fighting is accepted by the family as a way to resolve conflicts. Sigmund Freud
Sigmund Freud

Sigmund Freud , born Sigismund Schlomo Freud , was an Austrian psychiatrist who founded the psychoanalysis of psychology. Freud is best known for his theories of the unconscious mind and the defense mechanism of Psychological repression and for creating the clinical practice of psychoanalysis for curing psychopathology through dialogue...
 saw the sibling relationship as an extension of the Oedipus complex
Oedipus complex

The Oedipus complex , in psychoanalytic theory, is a group of largely unconscious ideas and feelings which centre around the desire to possess the parent of the opposite sex and eliminate the parent of the same sex....
, where brothers were in competition for their mother's attention and sisters for their father's. Evolutionary psychologists
Evolutionary psychology

Evolutionary psychology attempts to explain Mind and psychology Trait theorys?such as memory, perception, or language?as adaptations, that is, as the functional products of natural selection or sexual selection....
 explain sibling rivalry in terms of parental investment
Parental investment

In evolutionary biology, parental investment is any parental expenditure that benefits one offspring at a cost to parents' ability to invest in other components of fitness ....
 and kin selection
Kin selection

Some organisms tend to exhibit strategies that favor the reproductive success of their relatives, even at a cost to their own survival and/or reproduction....
: a parent is inclined to spread resources equally among all children in the family, but a child wants most of the resources for him or herself.

Westermarck effect and its opposite

Anthropologist Edvard Westermarck
Edvard Westermarck

Edvard Alexander Westermarck was a Swedish speaking Finns philosopher and sociologist. Among other subjects, he studied exogamy and the incest taboo....
 found that children who are brought up together as siblings are desensitized to form sexual attraction
Sexual attraction

Sexual attraction refers to a person's ability to Attractiveness in a sexual or erotic manner the interest of another person.Which aspects of sexual attraction have had greatest influence to humans at different points in time have differed between cultures and regions....
 to one another later in life. This is known as the Westermarck Effect. It can be seen in biological and adoptive families, but also in other situations where children are brought up in close contact, such as the Israel
Israel

Israel officially the State of Israel , is a country in the Middle East located on the eastern shore of the Mediterranean Sea. It borders Lebanon in the north, Syria in the northeast, Jordan in the east, and Egypt on the southwest, and contains geographically diverse features within its relatively small area....
i kibbutz
Kibbutz

A kibbutz is a Intentional community in Israel that was traditionally based on agriculture. The kibbutz is a form of communal living that combines socialism and Zionism....
 system and the Chinese Shim-pua marriage
Shim-pua marriage

Shim-pua marriage , also known as Tong Yang Xi in Chinese, was a tradition of arranged marriage in China, in which a poor family would sell a young daughter to a richer family for labour, and in exchange, the poorer family would be married into the richer family, through the daughter....
.

The opposite phenomenon, when relatives do fall in love, is known as genetic sexual attraction
Genetic sexual attraction

Genetic sexual attraction is sexual attraction between close relatives, such as brother and sister or a parent and offspring, who first meet as adults....
. This can occur between siblings brought up apart from each other, for example, adoptees who are re-united in adulthood.

See also

  • Cousin
  • Siblicide
    Siblicide

    Siblicide , the death of an individual by its close relatives may occur directly between siblings or indirectly across the parent-offspring relationship and is seen to have beneficial indirect results for the Genetics viability of a population or direct results for the recipient individuals....


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