Evolutionary psychology is a theoretical approach in psychology that examines cognition and behavior from a modern evolutionary perspective. It seeks to identify human psychological adaptations with regards to the ancestral problems they evolved to solve. In this framework, psychological traits and mechanisms are either functional products of natural and sexual selection or non-adaptive by-products of other adaptive traits.
Modularity of mind is the notion that a mind may, at least in part, be composed of innate neural structures or mental modules which have distinct, established, and evolutionarily developed functions. However, different definitions of "module" have been proposed by different authors. According to Jerry Fodor, the author of Modularity of Mind, a system can be considered 'modular' if its functions are made of multiple dimensions or units to some degree. One example of modularity in the mind is binding. When one perceives an object, they take in not only the features of an object, but the integrated features that can operate in sync or independently that create a whole. Instead of just seeing red, round, plastic, and moving, the subject may experience a rolling red ball. Binding may suggest that the mind is modular because it takes multiple cognitive processes to perceive one thing.
The Wason selection task is a logic puzzle devised by Peter Cathcart Wason in 1966. It is one of the most famous tasks in the study of deductive reasoning. An example of the puzzle is:
You are shown a set of four cards placed on a table, each of which has a number on one side and a color on the other. The visible faces of the cards show 3, 8, blue and red. Which card(s) must you turn over in order to test that if a card shows an even number on one face, then its opposite face is blue?
The language module or language faculty is a hypothetical structure in the human brain which is thought to contain innate capacities for language, originally posited by Noam Chomsky. There is ongoing research into brain modularity in the fields of cognitive science and neuroscience, although the current idea is much weaker than what was proposed by Chomsky and Jerry Fodor in the 1980s. In today's terminology, 'modularity' refers to specialisation: language processing is specialised in the brain to the extent that it occurs partially in different areas than other types of information processing such as visual input. The current view is, then, that language is neither compartmentalised nor based on general principles of processing. It is modular to the extent that it constitutes a specific cognitive skill or area in cognition.
A psychological adaptation is a functional, cognitive or behavioral trait that benefits an organism in its environment. Psychological adaptations fall under the scope of evolved psychological mechanisms (EPMs), however, EPMs refer to a less restricted set. Psychological adaptations include only the functional traits that increase the fitness of an organism, while EPMs refer to any psychological mechanism that developed through the processes of evolution. These additional EPMs are the by-product traits of a species’ evolutionary development, as well as the vestigial traits that no longer benefit the species’ fitness. It can be difficult to tell whether a trait is vestigial or not, so some literature is more lenient and refers to vestigial traits as adaptations, even though they may no longer have adaptive functionality. For example, xenophobic attitudes and behaviors, some have claimed, appear to have certain EPM influences relating to disease aversion, however, in many environments these behaviors will have a detrimental effect on a person's fitness. The principles of psychological adaptation rely on Darwin's theory of evolution and are important to the fields of evolutionary psychology, biology, and cognitive science.
The term standard social science model (SSSM) was first introduced by John Tooby and Leda Cosmides in the 1992 edited volume The Adapted Mind. They used SSSM as a reference to social science philosophies related to the blank slate, relativism, social constructionism, and cultural determinism. They argue that those philosophies, capsulized within SSSM, formed the dominant theoretical paradigm in the development of the social sciences during the 20th century. According to their proposed SSSM paradigm, the mind is a general-purpose cognitive device shaped almost entirely by culture.
Leda Cosmides is an American psychologist, who, together with anthropologist husband John Tooby, pioneered the field of evolutionary psychology.
John Tooby was an American anthropologist, who helped pioneer the field of evolutionary psychology with his psychologist wife Leda Cosmides.
Jerome H. Barkow is a Canadian anthropologist who works in the field of evolutionary psychology. He is a professor emeritus at Dalhousie University.
Evolutionary developmental psychology (EDP) is a research paradigm that applies the basic principles of evolution by natural selection, to understand the development of human behavior and cognition. It involves the study of both the genetic and environmental mechanisms that underlie the development of social and cognitive competencies, as well as the epigenetic processes that adapt these competencies to local conditions.
The Adapted Mind: Evolutionary Psychology and the Generation of Culture is a 1992 book edited by the anthropologists Jerome H. Barkow and John Tooby and the psychologist Leda Cosmides. First published by Oxford University Press, it is widely considered the foundational text of evolutionary psychology (EP), and outlines Cosmides and Tooby's integration of concepts from evolutionary biology and cognitive psychology, as well as many other concepts that would become important in adaptationist research.
Evolutionary psychology seeks to identify and understand human psychological traits that have evolved in much the same way as biological traits, through adaptation to environmental cues. Furthermore, it tends toward viewing the vast majority of psychological traits, certainly the most important ones, as the result of past adaptions, which has generated significant controversy and criticism from competing fields. These criticisms include disputes about the testability of evolutionary hypotheses, cognitive assumptions such as massive modularity, vagueness stemming from assumptions about the environment that leads to evolutionary adaptation, the importance of non-genetic and non-adaptive explanations, as well as political and ethical issues in the field itself.
Robert Kurzban is an American freelance writer and former psychology professor specializing in evolutionary psychology.
Cognitive description is a term used in psychology to describe the cognitive workings of the human mind.
Peter Carruthers is a British-American philosopher and cognitive scientist working primarily in the area of philosophy of mind, though he has also made contributions to philosophy of language and ethics. He is a professor of philosophy at the University of Maryland, College Park, an associate member of Neuroscience and Cognitive Science Program, and a member of the Committee for Philosophy and the Sciences.
The history of evolutionary psychology began with Charles Darwin, who said that humans have social instincts that evolved by natural selection. Darwin's work inspired later psychologists such as William James and Sigmund Freud but for most of the 20th century psychologists focused more on behaviorism and proximate explanations for human behavior. E. O. Wilson's landmark 1975 book, Sociobiology, synthesized recent theoretical advances in evolutionary theory to explain social behavior in animals, including humans. Jerome Barkow, Leda Cosmides and John Tooby popularized the term "evolutionary psychology" in their 1992 book The Adapted Mind: Evolutionary Psychology and The Generation of Culture. Like sociobiology before it, evolutionary psychology has been embroiled in controversy, but evolutionary psychologists see their field as gaining increased acceptance overall.
Epidemiology of representations, or cultural epidemiology, is a theory for explaining cultural phenomena by examining how mental representations get distributed within a population. The theory uses medical epidemiology as its chief analogy, because "...macro-phenomena such as endemic and epidemic diseases are unpacked in terms of patterns of micro-phenomena of individual pathology and inter-individual transmission". Representations transfer via so-called "cognitive causal chains" ; these representations constitute a cultural phenomenon by achieving stability of public production and mental representation within the existing ecology and psychology of a populace, the latter including properties of the human mind. Cultural epidemiologists have emphasized the significance of evolved properties, such as the existence of naïve theories, domain-specific abilities and principles of relevance.
Some evolutionary theorists consider prejudice as having functional utility in evolutionary process. A number of evolutionary psychologists in particular posit that human psychology, including emotion and cognition, is influenced by evolutionary processes. These theorists argue that although psychological variation appears between individuals, the majority of our psychological mechanisms are adapted specifically to solve recurrent problems in our evolutionary history, including social problems.
Evolutionary psychology has traditionally focused on individual-level behaviors, determined by species-typical psychological adaptations. Considerable work, though, has been done on how these adaptations shape and, ultimately govern, culture. Tooby and Cosmides (1989) argued that the mind consists of many domain-specific psychological adaptations, some of which may constrain what cultural material is learned or taught. As opposed to a domain-general cultural acquisition program, where an individual passively receives culturally-transmitted material from the group, Tooby and Cosmides (1989), among others, argue that: "the psyche evolved to generate adaptive rather than repetitive behavior, and hence critically analyzes the behavior of those surrounding it in highly structured and patterned ways, to be used as a rich source of information out of which to construct a 'private culture' or individually tailored adaptive system; in consequence, this system may or may not mirror the behavior of others in any given respect.".
