Louisville Twin Study
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Louisville Twin Study
The Louisville Twin Study is a longitudinal Longitudinal is a geometric term of location which may refer to: * Longitude ** Line of longitude, also called a meridian * Longitudinal engine, an internal combustion engine in which the crankshaft is oriented along the long axis of the vehicle, ... twin study which was started in 1957 at the University of Louisville by Frank Falkner. It started with 885 twins that were born in metropolitan Louisville, Kentucky and these were randomly selected to cover the full demographic spectrum of its population. The main phase of activity was in the first 40 years and the participants were repeatedly tested at different ages throughout that period. Hundreds of papers were then published from this data. In 2014, the data was digitised and further efforts have been made to contact and study the surviving subjects. References Twin studies University of Louisville {{ULouisville-stub ...
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Longitudinal Study
A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time (i.e., uses longitudinal data). It is often a type of observational study, although it can also be structured as longitudinal randomized experiment. Longitudinal studies are often used in social-personality and clinical psychology, to study rapid fluctuations in behaviors, thoughts, and emotions from moment to moment or day to day; in developmental psychology, to study developmental trends across the life span; and in sociology, to study life events throughout lifetimes or generations; and in consumer research and political polling to study consumer trends. The reason for this is that, unlike cross-sectional studies, in which different individuals with the same characteristics are compared, longitudinal studies track the same people, and so the differences observed in those people are less like ...
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Twin Study
Twin studies are studies conducted on identical or fraternal twins. They aim to reveal the importance of environmental and genetic influences for traits, phenotypes, and disorders. Twin research is considered a key tool in behavioral genetics and in related fields, from biology to psychology. Twin studies are part of the broader methodology used in behavior genetics, which uses all data that are genetically informative – siblings studies, adoption studies, pedigree, etc. These studies have been used to track traits ranging from personal behavior to the presentation of severe mental illnesses such as schizophrenia. Twins are a valuable source for observation because they allow the study of environmental influence and varying genetic makeup: "identical" or monozygotic (MZ) twins share essentially 100% of their genes, which means that most differences between the twins (such as height, susceptibility to boredom, intelligence, depression, etc.) are due to experiences that one tw ...
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University Of Louisville
The University of Louisville (UofL) is a public research university in Louisville, Kentucky. It is part of the Kentucky state university system. When founded in 1798, it was the first city-owned public university in the United States and one of the first universities chartered west of the Allegheny Mountains. The university is mandated by the Kentucky General Assembly to be a "Preeminent Metropolitan Research University". It enrolls students from 118 of 120 Kentucky counties, all 50 U.S. states, and 116 countries around the world. Louisville is classified among "R1: Doctoral Universities – Very high research activity". The University of Louisville School of Medicine is touted for the first fully self-contained artificial heart transplant surgery, as well as the first successful hand transplantation in the United States. The University Hospital is also credited with the first civilian ambulance, the nation's first accident services, now known as an emergency department (ED), a ...
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Frank Falkner
Frank Tardrew Falkner (October 27, 1918 – August 21, 2003) was a British-born American biologist and pediatrician known for his expertise on child development. After graduating from the University of Cambridge with a medical degree in 1945, he worked at Great Ormond Street Hospital in London, England, prior to joining the faculty of the University of Louisville School of Medicine in January 1956. He remained on the faculty of the University of Louisville until 1968, initially serving as an assistant professor of child health there, and eventually rising to chair their Department of Pediatrics. While on the faculty of this university, he started the Louisville Twin Study in 1957. He joined the National Institute of Child Health and Human Development as program director, later becoming an associate director there. In 1970, he became director of the Fels Longitudinal Study of Physical Growth and Development at the Fels Research Institute. He then served on the faculties ...
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Louisville, Kentucky
Louisville ( , , ) is the largest city in the Commonwealth of Kentucky and the 28th most-populous city in the United States. Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County, on the Indiana border. Named after King Louis XVI of France, Louisville was founded in 1778 by George Rogers Clark, making it one of the oldest cities west of the Appalachians. With nearby Falls of the Ohio as the only major obstruction to river traffic between the upper Ohio River and the Gulf of Mexico, the settlement first grew as a portage site. It was the founding city of the Louisville and Nashville Railroad, which grew into a system across 13 states. Today, the city is known as the home of boxer Muhammad Ali, the Kentucky Derby, Kentucky Fried Chicken, the University of Louisville and its Cardinals, Louisville Slugger baseball bats, and three of Kentucky's six ''Fortune'' 500 companies: Humana, Kindred Healthcare, and Yum! Brands. Muhamm ...
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Twin Studies
Twin studies are studies conducted on identical or fraternal twins. They aim to reveal the importance of environmental and genetic influences for traits, phenotypes, and disorders. Twin research is considered a key tool in behavioral genetics and in related fields, from biology to psychology. Twin studies are part of the broader methodology used in behavior genetics, which uses all data that are genetically informative – siblings studies, adoption studies, pedigree, etc. These studies have been used to track traits ranging from personal behavior to the presentation of severe mental illnesses such as schizophrenia. Twins are a valuable source for observation because they allow the study of environmental influence and varying genetic makeup: "identical" or monozygotic (MZ) twins share essentially 100% of their genes, which means that most differences between the twins (such as height, susceptibility to boredom, intelligence, depression, etc.) are due to experiences that one tw ...
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