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Evolutionary Psychology

Evolutionary psychology is a branch of psychology that examines how humans and human behavior have changed over time as a method of adaptation to promote survival and reproduction.

Theories and topics within evolutionary psychology focus on how the brain picks up on information in the environment regarding various adaptations, how human behavior has adapted to promote reproduction, and how the brain developed so that language could be learned readily. For instance, by developing language and being able to learn language as a child, humans have evolved to be better at communication, which is also necessary for survival. Especially considering how different cultures can be, certain cultural universals like emotion recognition and the choice of healthy partners demonstrates how humans as a whole have adapted.

Research largely examines human behavior throughout time and seeks to examine which behaviors are adaptations and which are just a result of random variation or a byproduct of an adaptation that holds no significance for ourselves or for our ancestors. The environment of evolutionary adaptedness is also important in research due to the fact that the environment in which we develop will influence our adaptations, so we must understand that environment and how it shaped us. Mismatches also take place when an adaptation no longer applies to the current environment. For example, humans crave sugary and fatty foods because they weren't common in the past, but now they are so common in food that it has actually become maladaptive because of the obesity epidemic in many industrialized countries. It has even been hypothesized in some cases that mental disorders could be arising due to mismatches between the mesocorticolimbic dopaminergic system and current society ¹.

Therefore, by understanding how humans have evolved and adapted over time, we can better explain certain behaviors and attitudes in society. For example, we can explain human jealousy as a result of not wanting to lose a partner in which you've devoted energy and resources on. By understanding these adaptations, a better overall view of humans and all the factors that influence emotions, thoughts, and behaviors can be obtained, helping the field of psychology as a whole.



1.  Pani, L. (2000). Is there an evolutionary mismatch between the normal physiology of the human dopaminergic system and current environmental conditions in industrialized countries? Molecular Psychiatry, 5(5), 467-475.

Categories within Evolutionary Psychology

Evolved Psychological Mechanism

Postings: 3

An evolved psychological mechanism is a mechanism which has come about to serve some purpose, served a purpose in the past, or is a result of another evolved mechanism.

Mating and Parenting

Postings: 57

Mating and parenting are some main adaptations to promote human survival and reproduction, and include reasoning for human jealousy.

Family and Kin

Postings: 7

Adaptations have developed for family and kin involving more secure attachment, protection, and nurturance for those who will be more likely to pass on your genetic code.


Postings: 5

Reciprocity as an evolutionary adaptation explains how humans may engage in acts of kindness towards others in hopes that they will receive something in return.

Evolution and Culture

Postings: 11

Culture is extremely important to consider when examining human evolution and adaptations due to the fact that certain cultural universals exist between humans and culture can influence the environment a population is raised in.

Maternal and Paternal behaviors

Neural structures and chemicals play an important role in maternal and paternal behaviors. These neural underpinnings may relate to how men and women are socialized to care for children. One example is the reduction in testosterone in males during parenting experiences. Men are socialized to be less nurturing than women and more

Qualitative and Quantitative Methods in Psychology

Can someone please help me with this week discussion question? Qualitative Research Design and Methods To prepare for this Discussion: •Review Chapter 9 in the course text, Research Design and the "Qualitative Methods: Examples" media segment. •Explain how quantitative and qualitative strategies and methods/pr

Psychological Experimentation on Animals

Are there research questions that can only be answered by doing experiments with nonhuman animals in order to shed light on human psychology? Since some believe Darwin's theory supported psychological research on nonhuman animals; are there research questions that can only be answered by doing experiments with nonhuman animal

Twin studies on personality traits

Have you heard of this story? This story has to do with genetic approaches that have contributed to our understanding of personality. Here is an example of a story about two identical twins. What is your take on this story? Would you conclude that all these similarities are due to heredity? Why Briefly how would you s

Interventions in a Natural Disaster.

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Arousal and emotion

I would like understanding (a few) historical theories concerning arousal and emotion as they relate to human motivation? which do you believe is the most applicable to motivation and why?