Related Experiment Video
Updated: May 24, 2026

09:12
The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
Published on: July 4, 2013
Evolutionary perspectives on human aggression: introduction to the special issue.
Elizabeth Cashdan1, Stephen M Downes
1Department of Anthropology, University of Utah, Salt Lake City, UT 84112, USA. ecashdan@gmail.com
Human Nature (Hawthorne, N.Y.)
|March 14, 2012
Summary
Evolutionary psychology explores human aggression, viewing it as an adaptation shaped by environmental factors. Understanding aggression
Area of Science:
- Evolutionary Psychology
- Behavioral Ecology
- Anthropology
Background:
- Examines human aggression through an evolutionary lens, analyzing response patterns to environmental circumstances.
- Considers how environmental factors influence the costs and benefits associated with aggressive behavior.
Discussion:
- Highlights similarities between human and nonhuman aggression, such as responses to physical strength, testosterone, paternity, and intergroup conflict.
- Investigates differences, including the impact of modern weaponry, wealth disparities, and coercion on aggression.
- Discusses the evolutionary phylogeny of aggressive traits and the implications of large-scale human sociality.
Key Insights:
- Aggression is understood as an evolved adaptation with evolutionary roots, not a predetermined outcome.
- Environmental contexts significantly shape the expression and adaptive value of aggression.
- Comparative analysis reveals shared and distinct features of aggression across species.
Outlook:
- Suggests that understanding the evolutionary basis of aggression can inform strategies for managing conflict.
- Further research into the interplay of social structures, technology, and evolved predispositions is warranted.
Related Concept Videos
Aggression
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for hire...
Criticisms of the Evolutionary Perspective
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
Evolutionary psychology provides one explanation for these findings, suggesting...
Evolutionary Psychology
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
Secondary Motives: Affiliation Motivation and Aggression Motivation
Affiliation motivation is the intrinsic desire to connect with others and belong to a social group, which plays a crucial role in forming and maintaining personal relationships. This type of motivation is essential for psychological well-being, as it provides individuals with a sense of community and support. An example of this is a student who joins a study group in order to feel a sense of connection. People with high affiliation motivation actively seek social approval, take satisfaction in...
Instinct Theory
Instinct theory proposes that innate biological instincts, like animal behavioral patterns, primarily drive human behavior. These instincts are inborn, not learned, and are fundamental to decision-making and action. Just as animals rely on instincts for critical survival functions such as migration, nest building, and defense, humans are also believed to exhibit behaviors rooted in evolutionary needs. For example, the instinct to reproduce motivates sexual behavior, while territorial instincts...
Causes of Social Behavior III: Biological and Environmental Influences
Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...

