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Digit ratio

Index Digit ratio

The digit ratio is the ratio of the lengths of different digits or fingers typically measured from the midpoint of bottom crease (where the finger joins the hand) to the tip of the finger. [1]

87 relations: Aggression, Alcohol dependence, Allometry, Amniocentesis, Androgen, Androgen insensitivity syndrome, Androgen receptor, Androstenedione, Anogenital distance, Anorexia nervosa, Anxiety, Asperger syndrome, Assertiveness, Attention deficit hyperactivity disorder, Autism spectrum, Benford's law, Body mass index, Bulimia nervosa, Butch and femme, Cardiovascular disease, Cave painting, Clitoris, Confidence interval, Congenital adrenal hyperplasia, Depression (mood), Dermatoglyphics, Early Human Development, Egg, Empathy, Estradiol, Estrogen, Experimental evolution, Facial symmetry, Fetus, Finger, Finns, Glenn Wilson (psychologist), Greenwood Publishing Group, Handedness and sexual orientation, Hominidae, Hormone, Hox gene, Human sexuality, Inbreeding, Index finger, Kenneth Zucker, King's College London, Klinefelter syndrome, Literacy, Live Science, ..., Marc Breedlove, Metabolic syndrome, Neuroticism, Normal distribution, Numeracy, Obesity, Openness to experience, Otoacoustic emission, Palmistry, Paranormal, Personality, Peter L. Hurd, Pheasant, Pleiotropy, Poles, Proceedings of the Royal Society, Prostate cancer, Psychopathy, Psychoticism, Puberty, Ring finger, Schizophrenia, Sexual dimorphism, Sexual orientation, Standard deviation, Superstition, Testosterone, Theodore Garland Jr., Time (magazine), Trans woman, Transgender, Uterus, Vagina, Verbal fluency test, Video game addiction, Waist–hip ratio, Zebra finch. Expand index (37 more) »

Aggression

Aggression is overt, often harmful, social interaction with the intention of inflicting damage or other unpleasantness upon another individual.

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Alcohol dependence

Alcohol dependence is a previous psychiatric diagnosis in which an individual is physically or psychologically dependent upon alcohol (also known formally as ethanol).

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Allometry

Allometry is the study of the relationship of body size to shape, anatomy, physiology and finally behaviour, first outlined by Otto Snell in 1892, by D'Arcy Thompson in 1917 in On Growth and Form and by Julian Huxley in 1932.

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Amniocentesis

Amniocentesis (also referred to as amniotic fluid test or AFT) is a medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections, and also for sex determination, in which a small amount of amniotic fluid, which contains fetal tissues, is sampled from the amniotic sac surrounding a developing fetus, and then the fetal DNA is examined for genetic abnormalities.

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Androgen

An androgen (from Greek andr-, the stem of the word meaning "man") is any natural or synthetic steroid hormone which regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors.

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Androgen insensitivity syndrome

Androgen insensitivity syndrome (AIS) is an intersex condition in which there is a partial or complete inability of many cells in the affected genetic male to respond to androgenic hormones.

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Androgen receptor

The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor that is activated by binding any of the androgenic hormones, including testosterone and dihydrotestosterone in the cytoplasm and then translocating into the nucleus.

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Androstenedione

Androstenedione, or 4-androstenedione (abbreviated as A4 or Δ4-dione), also known as androst-4-ene-3,17-dione, is an endogenous weak androgen steroid hormone and intermediate in the biosynthesis of estrone and of testosterone from dehydroepiandrosterone (DHEA).

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Anogenital distance

Anogenital distance (AGD) is the distance from the anus to the genitalia, the base of the penis or vagina.

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Anorexia nervosa

Anorexia nervosa, often referred to simply as anorexia, is an eating disorder characterized by low weight, fear of gaining weight, and a strong desire to be thin, resulting in food restriction.

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Anxiety

Anxiety is an emotion characterized by an unpleasant state of inner turmoil, often accompanied by nervous behaviour such as pacing back and forth, somatic complaints, and rumination.

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Asperger syndrome

Asperger syndrome (AS), also known as Asperger's, is a developmental disorder characterized by significant difficulties in social interaction and nonverbal communication, along with restricted and repetitive patterns of behavior and interests.

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Assertiveness

Assertiveness is the quality of being self-assured and confident without being aggressive.

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Attention deficit hyperactivity disorder

Attention-deficit hyperactivity disorder (ADHD) is a mental disorder of the neurodevelopmental type.

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Autism spectrum

Autism spectrum, also known as autism spectrum disorder (ASD), is a range of conditions classified as neurodevelopmental disorders.

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Benford's law

Benford's law, also called Newcomb-Benford's law, law of anomalous numbers, and first-digit law, is an observation about the frequency distribution of leading digits in many real-life sets of numerical data.

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Body mass index

The body mass index (BMI) or Quetelet index is a value derived from the mass (weight) and height of an individual.

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Bulimia nervosa

Bulimia nervosa, also known as simply bulimia, is an eating disorder characterized by binge eating followed by purging.

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Butch and femme

Butch and femme are terms used in the lesbian and gay subculture to ascribe or acknowledge a masculine (butch) or feminine (femme) identity with its associated traits, behaviors, styles, self-perception, and so on.

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Cardiovascular disease

Cardiovascular disease (CVD) is a class of diseases that involve the heart or blood vessels.

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Cave painting

Cave paintings, also known as parietal art, are painted drawings on cave walls or ceilings, mainly of prehistoric origin, beginning roughly 40,000 years ago (around 38,000 BCE) in Eurasia.

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Clitoris

The clitoris is a female sex organ present in mammals, ostriches and a limited number of other animals.

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Confidence interval

In statistics, a confidence interval (CI) is a type of interval estimate, computed from the statistics of the observed data, that might contain the true value of an unknown population parameter.

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Congenital adrenal hyperplasia

Congenital adrenal hyperplasia (CAH) are any of several autosomal recessive diseases resulting from mutations of genes for enzymes mediating the biochemical steps of production of mineralocorticoids, glucocorticoids or sex steroids from cholesterol by the adrenal glands (steroidogenesis).

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Depression (mood)

Depression is a state of low mood and aversion to activity that can affect a person's thoughts, behavior, tendencies, feelings, and sense of well-being.

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Dermatoglyphics

Dermatoglyphics (from Ancient Greek derma, "skin", and glyph, "carving") is the scientific study of fingerprints, lines, mounts and shapes of hands.

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Early Human Development

Early Human Development is a peer-reviewed academic journal covering human development published by Elsevier.

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Egg

An egg is the organic vessel containing the zygote in which an animal embryo develops until it can survive on its own; at which point the animal hatches.

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Empathy

Empathy is the capacity to understand or feel what another person is experiencing from within their frame of reference, i.e., the capacity to place oneself in another's position.

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Estradiol

Estradiol (E2), also spelled oestradiol, is an estrogen steroid hormone and the major female sex hormone.

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Estrogen

Estrogen, or oestrogen, is the primary female sex hormone.

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Experimental evolution

Experimental evolution is the use of laboratory experiments or controlled field manipulations to explore evolutionary dynamics.

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Facial symmetry

Facial symmetry is one specific measure of bodily asymmetry.

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Fetus

A fetus is a stage in the prenatal development of viviparous organisms.

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Finger

A finger is a limb of the human body and a type of digit, an organ of manipulation and sensation found in the hands of humans and other primates.

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Finns

Finns or Finnish people (suomalaiset) are a Finnic ethnic group native to Finland.

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Glenn Wilson (psychologist)

Glenn Daniel Wilson (born 29 December 1942) is a psychologist best known for his work on attitude and personality measurement, sexual attraction, deviation and dysfunction, partner compatibility, and psychology applied to performing arts.

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Greenwood Publishing Group

ABC-CLIO/Greenwood is an educational and academic publisher (middle school through university level) which is today part of ABC-CLIO.

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Handedness and sexual orientation

A relationship between handedness and sexual orientation has been suggested by a number of researchers, who report that heterosexual individuals are somewhat more likely to be right-handed than are homosexual individuals.

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Hominidae

The Hominidae, whose members are known as great apes or hominids, are a taxonomic family of primates that includes eight extant species in four genera: Pongo, the Bornean, Sumatran and Tapanuli orangutan; Gorilla, the eastern and western gorilla; Pan, the common chimpanzee and the bonobo; and Homo, which includes modern humans and its extinct relatives (e.g., the Neanderthal), and ancestors, such as Homo erectus.

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Hormone

A hormone (from the Greek participle “ὁρμῶ”, "to set in motion, urge on") is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour.

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Hox gene

Hox genes, a subset of homeotic genes, are a group of related genes that control the body plan of an embryo along the head-tail axis.

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Human sexuality

Human sexuality is the way people experience and express themselves sexually.

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Inbreeding

Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically.

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Index finger

The index finger (also referred to as forefinger, first finger, pointer finger, trigger finger, digitus secundus, digitus II, and many other terms), is the first finger and the second digit of a human hand.

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Kenneth Zucker

Kenneth J. Zucker (born 1950) is an American-Canadian psychologist and sexologist.

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King's College London

King's College London (informally King's or KCL) is a public research university located in London, United Kingdom, and a founding constituent college of the federal University of London.

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Klinefelter syndrome

Klinefelter syndrome (KS) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosomes in males.

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Literacy

Literacy is traditionally meant as the ability to read and write.

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Live Science

Live Science is a science news website run by Purch, which it purchased from Imaginova in 2009.

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Marc Breedlove

Stephen Marc Breedlove (born 1954) is the Barnett Rosenberg professor of Neuroscience at Michigan State University in East Lansing, Michigan.

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Metabolic syndrome

Metabolic syndrome, sometimes known by other names, is a clustering of at least three of the five following medical conditions: abdominal obesity, high blood pressure, high blood sugar, high serum triglycerides and low high-density lipoprotein (HDL) levels.

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Neuroticism

Neuroticism is one of the Big Five higher-order personality traits in the study of psychology.

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Normal distribution

In probability theory, the normal (or Gaussian or Gauss or Laplace–Gauss) distribution is a very common continuous probability distribution.

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Numeracy

Numeracy is the ability to reason and to apply simple numerical concepts.

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Obesity

Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health.

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Openness to experience

Openness to experience is one of the domains which are used to describe human personality in the Five Factor Model.

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Otoacoustic emission

An otoacoustic emission (OAE) is a sound which is generated from within the inner ear.

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Palmistry

Palmistry, or chiromancy (also spelled cheiromancy; from Greek kheir (χεῖρ, ός; "hand") and manteia (μαντεία, ας; "divination"), is the claim of characterization and foretelling the future through the study of the palm, also known as chirology, or in popular culture as palm reading. The practice is found all over the world, with numerous cultural variations. Those who practice chiromancy are generally called palmists, hand readers, hand analysts, or chirologists. There are many—often conflicting—interpretations of various lines and palmar features across various schools of palmistry. These contradictions between different interpretations, as well as the lack of empirical support for palmistry's predictions, contribute to palmistry's perception as a pseudoscience among academics.

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Paranormal

Paranormal events are phenomena described in popular culture, folk, and other non-scientific bodies of knowledge, whose existence within these contexts is described to lie beyond normal experience or scientific explanation.

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Personality

Personality is defined as the set of habitual behaviors, cognitions and emotional patterns that evolve from biological and environmental factors.

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Peter L. Hurd

Peter L. Hurd is an academic specialising in biology.

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Pheasant

Pheasants are birds of several genera within the subfamily Phasianinae, of the family Phasianidae in the order Galliformes.

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Pleiotropy

Pleiotropy (from Greek πλείων pleion, "more", and τρόπος tropos, "way") occurs when one gene influences two or more seemingly unrelated phenotypic traits.

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Poles

The Poles (Polacy,; singular masculine: Polak, singular feminine: Polka), commonly referred to as the Polish people, are a nation and West Slavic ethnic group native to Poland in Central Europe who share a common ancestry, culture, history and are native speakers of the Polish language.

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Proceedings of the Royal Society

Proceedings of the Royal Society is the parent title of two scientific journals published by the Royal Society.

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Prostate cancer

Prostate cancer is the development of cancer in the prostate, a gland in the male reproductive system.

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Psychopathy

Psychopathy, sometimes considered synonymous with sociopathy, is traditionally defined as a personality disorder characterized by persistent antisocial behavior, impaired empathy and remorse, and bold, disinhibited, and egotistical traits.

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Psychoticism

Psychoticism is one of the three traits used by the psychologist Hans Eysenck in his P–E–N model (psychoticism, extraversion and neuroticism) model of personality.

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Puberty

Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.

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Ring finger

The ring finger is the finger on which it is the custom in a particular culture for a wedding ring to be placed during a wedding ceremony and on which the wedding ring is subsequently worn to indicate the status of the wearer as a married person.

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Schizophrenia

Schizophrenia is a mental disorder characterized by abnormal social behavior and failure to understand reality.

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Sexual dimorphism

Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs.

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Sexual orientation

Sexual orientation is an enduring pattern of romantic or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one gender.

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Standard deviation

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

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Superstition

Superstition is a pejorative term for any belief or practice that is considered irrational: for example, if it arises from ignorance, a misunderstanding of science or causality, a positive belief in fate or magic, or fear of that which is unknown.

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Testosterone

Testosterone is the primary male sex hormone and an anabolic steroid.

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Theodore Garland Jr.

Theodore Garland Jr. (born 28 November 1956) is a biologist specializing in evolutionary physiology.

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Time (magazine)

Time is an American weekly news magazine and news website published in New York City.

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Trans woman

A trans woman (sometimes trans-woman or transwoman) is a woman who was assigned male at birth.

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Transgender

Transgender people have a gender identity or gender expression that differs from their assigned sex.

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Uterus

The uterus (from Latin "uterus", plural uteri) or womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans and most other mammals.

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Vagina

In mammals, the vagina is the elastic, muscular part of the female genital tract.

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Verbal fluency test

Verbal fluency tests are a kind of psychological test in which participants have to produce as many words as possible from a category in a given time (usually 60 seconds).

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Video game addiction

Video game addiction (VGA) has been suggested by some in the medical community as a distinct behavioral addiction characterized by excessive or compulsive use of computer games or video games that interferes with a person's everyday life.

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Waist–hip ratio

The Waist-hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips.

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Zebra finch

The zebra finch (Taeniopygia guttata), is the most common estrildid finch of Central Australia and ranges over most of the continent, avoiding only the cool moist south and some areas of the tropical far north.

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Redirects here:

2D:4D, 2D:4D ratio, 2d:4d, Digit Ratio, First finger to third finger ratio, Index finger to ring finger ratio, Second digit to fourth digit ratio.

References

[1] https://en.wikipedia.org/wiki/Digit_ratio

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