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Evolutionary psychologists consider Charles Darwin's theory of natural selection to be important to an understanding of psychology. [1] Natural selection occurs because individual organisms who are genetically better suited to the current environment leave more descendants, and their genes spread through the population, thus explaining why organisms fit their environments so closely. [1]
The Genetic Lottery: Why DNA Matters for Social Equality is a book by psychologist and behavior geneticist Kathryn Paige Harden, a professor of psychology at the University of Texas at Austin. Published on September 21, 2021, by Princeton University Press , the book argues that human genetic variation needs to be acknowledged in order to create ...
This approach to genetic association studies is largely atheoretical, and typically not guided by a particular biological hypothesis regarding the phenotype. [33] Genetic association findings for behavioural traits and psychiatric disorders have been found to be highly polygenic (involving many small genetic effects).
Evolutionary psychology is a theoretical approach in psychology that examines cognition and behavior from a modern evolutionary perspective. [1] [2] It seeks to identify human psychological adaptations with regards to the ancestral problems they evolved to solve.
An individual's niche can change over time, as explained in Emilie Snell-Rood's theory of behavioral plasticity and evolution. Snell-Rood argues that one element of developmental behavioral plasticity is the change in a gene’s expressed phenotype as a result of a change in environment. [4]
The gene-centered view of evolution is a synthesis of the theory of evolution by natural selection, the particulate inheritance theory, and the rejection of transmission of acquired characters. [ 6 ] [ 7 ] It states that those alleles whose phenotypic effects successfully promote their own propagation will be favorably selected relative to ...
Down syndrome is a genetic syndrome marked by intellectual disability and distinct cranio-facial features and occurs in approximately 1 in 800 live births. [17] Experts believe the genetic cause for the syndrome is a lack of genes in the 21st chromosome. [17] However, the gene or genes responsible for the cognitive phenotype have yet to be ...
Among the first biologists to propose an interactionist theory of development was Daniel Lehrman. [4] Since then, numerous interactionist perspectives have been proposed, and the contradictions between many of these perspectives has led to much controversy in evolutionary psychology and behavioral genetics .