Giorgio Bertini
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Tag Archives: cultural innovations
The evolution of cognitive mechanisms in response to cultural innovations
When humans and other animals make cultural innovations, they also change their environment, thereby imposing new selective pressures that can modify their biological traits. For example, there is evidence that dairy farming by humans favored alleles for adult lactose tolerance. … Continue reading
Posted in Cognitive evolution, Cultural innovations
Tagged Cognitive evolution, cultural innovations
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Game-Changing Innovations: How Culture Can Change the Parameters of Its Own Evolution and Induce Abrupt Cultural Shifts
One of the most puzzling features of the prehistoric record of hominid stone tools is its apparent punctuation: it consists of abrupt bursts of dramatic change that separate long periods of largely unchanging technology. Within each such period, small punctuated … Continue reading
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Cultural Innovations and Demographic Change
Demography plays a large role in cultural evolution through its effects on the effective rate of innovation. If we assume that useful inventions are rare, then small isolated societies will have low rates of invention. In small populations, complex technology … Continue reading
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Role of Peers in Cultural Innovation and Cultural Transmission
Observations of the spontaneous play behaviors of a group of captive bottlenose dolphins (Tursiops truncatus) revealed that each individual calf’s play became more complex with increasing age, suggesting that dolphin play may facilitate the ontogeny and maintenance of flexible problem … Continue reading
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Cave from East Africa shows early Cultural Innovations
An international, interdisciplinary group of scholars working along the East African coast have discovered a major cave site which records substantial activities of hunter-gatherers and later, Iron Age communities. Detailed environmental research has demonstrated that human occupations occur in a … Continue reading
Posted in Ancient, Cultural innovations
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Partial connectivity increases cultural accumulation within groups
Complex technologies used in most human societies are beyond the inventive capacities of individuals. Instead, they result from a cumulative process in which innovations are gradually added to existing cultural traits across many generations. Recent work suggests that a population’s ability to develop complex … Continue reading
Posted in Cultural accumulation, Cultural innovations, Groups
Tagged Cultural accumulation, cultural innovations, groups
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The niche construction of cultural complexity
Interactions between innovations, population size, and the environment. Niche construction is a process through which organisms alter their environments and, in doing so, influence or change the selective pressures to which they are subject. ‘Cultural niche construction’ refers specifically to … Continue reading
Posted in Cultural complexity, Cultural innovations, Innovation
Tagged cultural complexity, cultural innovations, innovation
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Evolution in Leaps: The punctuated Accumulation and Loss of Cultural Innovations
Archaeological accounts of cultural change reveal a fundamental conflict: Some suggest that change is gradual, accelerating over time, whereas others indicate that it is punctuated, with long periods of stasis interspersed by sudden gains or losses of multiple traits. Existing … Continue reading
Posted in Creativity, Cultural accumulation, Cultural change, Cultural evolution, Cultural innovations, Cultural population, Social stratification
Tagged creativity, Cultural accumulation, cultural change, cultural evolution, cultural innovations, Cultural population, Social stratification
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Culture, Genes, and the Human Revolution
Genetic evolution may have been driven by cultural innovations during the emergence of modern humans. State-of-the-art DNA sequencing is providing ever more detailed insights into the genomes of humans, extant apes, and even extinct hominins , offering unprecedented opportunities to … Continue reading
Posted in Cultural innovations, Culture, Evolution, Genetic, Humans
Tagged cultural innovations, culture, evolution, genetic, humans
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