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Related Concept Videos

Cognitive Learning01:21

Cognitive Learning

Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
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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...
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Repeated learning makes cultural evolution unique.

Pontus Strimling1, Magnus Enquist, Kimmo Eriksson

  • 1Centre for the Study of Cultural Evolution, Stockholm University, SE-106 09 Stockholm, Sweden.

Proceedings of the National Academy of Sciences of the United States of America
|August 12, 2009
PubMed
Summary
This summary is machine-generated.

Cultural evolution differs from genetic evolution due to repeated learning, allowing traits to spread and disappear rapidly. This challenges the concept of "cultural fitness" and its comparison to biological fitness.

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Area of Science:

  • Evolutionary biology
  • Cultural evolution
  • Social learning theory

Background:

  • Genetic information is acquired once, while cultural information can be learned and unlearned.
  • Cultural evolution is influenced by trait spread and individual retention, an aspect previously unexplored.
  • Previous models often draw parallels between biological and cultural evolution.

Purpose of the Study:

  • To explore the evolutionary consequences of cultural traits being abandonable and re-acquirable.
  • To investigate how repeated learning and trait characteristics uniquely shape cultural evolution.
  • To assess the validity of a
  • cultural fitness
  • index analogous to biological fitness.

Main Methods:

  • Development of a mathematical model for cultural evolution.
  • Analysis of cultural trait dynamics considering spread and retention.
  • Examination of the impact of learning opportunities on evolutionary predictability.

Main Results:

  • Repeated learning and trait characteristics enable unique cultural dynamics, such as rapid spread and disappearance.
  • The predictability of long-term cultural evolution via a success index is contingent on learning opportunities.
  • A success index analogous to biological fitness may be logically impossible when learning opportunities are limited.

Conclusions:

  • Cultural evolution exhibits unique dynamics not seen in genetic evolution due to the nature of learning and information retention.
  • The concept of
  • cultural fitness
  • is not universally applicable and depends on the frequency of learning opportunities.
  • While direct analogies to biological fitness may be flawed, a success index can be viable in models with abundant learning opportunities.