Sensory exploitation and cultural transmission: The late emergence of iconic representations in human evolution

J. Verpooten, M. Nelissen

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Abstract

Iconic representations (i.e., figurative imagery and realistic art) only started to appear consistently some 45,000 years ago, although humans have been anatomically modern since 200,000–160,000 years ago. What explains this? Some authors have suggested a neurocognitive change took place, leading to a creative explosion, although this has been contested. Here, we examine the hypothesis that demographic changes caused cultural “cumulative adaptive evolution” and as such the emergence of modern symbolic behavior. This approach usefully explains the evolution of utilitarian skills and tools, and the creation of symbols to identify groups. However, it does not equally effectively explain the evolution of behaviors that may not be directly adaptive, such as the production of iconic representations like figurines and rock art. In order to shed light on their emergence, we propose to combine the above-mentioned cultural hypothesis with the concept of sensory exploitation. The concept essentially states that behavioral traits (in this case iconic art production) which exploit pre-existing sensory sensitivities will evolve if not hindered by costs (i.e., natural selection). In this view, iconic art traditions are evolved by piggybacking on cumulative adaptive evolution. Since it is to date uncertain whether art has served any adaptive function in human evolution, parsimony demands paying more attention to the primary and afunctional mechanism of sensory exploitation as opposed to mechanisms of models based exclusively on secondary benefits (such as Miller’s, for instance, in which art is proposed to evolve as a sexual display of fitness).
Keywords: Sensory exploitation Cultural transmission Iconic representations Mimicry Demographic transition Evolution of art
Original languageEnglish
Pages (from-to)211-221
JournalTheory in Biosciences
Volume129
Issue number2-3
DOIs
Publication statusPublished - 2010
Externally publishedYes

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Exploitation
Iconic
Art
Cultural Transmission
Human Evolution
Key Words
Figurative
Mimicry
Sexual
Fitness
Demographic Change
Figurines
Natural Selection
Rock Art
Costs
Parsimony
Imagery
Demographic Transition
Symbol

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abstract = "Iconic representations (i.e., figurative imagery and realistic art) only started to appear consistently some 45,000 years ago, although humans have been anatomically modern since 200,000–160,000 years ago. What explains this? Some authors have suggested a neurocognitive change took place, leading to a creative explosion, although this has been contested. Here, we examine the hypothesis that demographic changes caused cultural “cumulative adaptive evolution” and as such the emergence of modern symbolic behavior. This approach usefully explains the evolution of utilitarian skills and tools, and the creation of symbols to identify groups. However, it does not equally effectively explain the evolution of behaviors that may not be directly adaptive, such as the production of iconic representations like figurines and rock art. In order to shed light on their emergence, we propose to combine the above-mentioned cultural hypothesis with the concept of sensory exploitation. The concept essentially states that behavioral traits (in this case iconic art production) which exploit pre-existing sensory sensitivities will evolve if not hindered by costs (i.e., natural selection). In this view, iconic art traditions are evolved by piggybacking on cumulative adaptive evolution. Since it is to date uncertain whether art has served any adaptive function in human evolution, parsimony demands paying more attention to the primary and afunctional mechanism of sensory exploitation as opposed to mechanisms of models based exclusively on secondary benefits (such as Miller’s, for instance, in which art is proposed to evolve as a sexual display of fitness).Keywords: Sensory exploitation Cultural transmission Iconic representations Mimicry Demographic transition Evolution of art",
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Sensory exploitation and cultural transmission : The late emergence of iconic representations in human evolution. / Verpooten, J.; Nelissen, M.

In: Theory in Biosciences, Vol. 129, No. 2-3, 2010, p. 211-221.

Research output: Contribution to journalArticleScientificpeer-review

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