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AI Summary of Peer-Reviewed Research

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Mesolithic ornamentation showed non-linear changes in complexity

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A detailed scientific illustration in grayscale showing multiple views of ancient decorated bone artifacts, including carved implements and ornamental objects with geometric patterns, displayed in a scholarly documentation style typical of archaeological research records.
Research area:ArchaeologyAnthropologyArcheology

What the study found

The study found non-linear changes in South Scandinavian Mesolithic portable art over time. In particular, it reports a notable Middle Mesolithic peak in visual complexity and a slight, gradual increase in information content.

Why the authors say this matters

The authors conclude that these shifts may index the emergence of fundamentally different societal functions for the ornamentations. They also state that the changes broadly correlate with, and are likely driven by, environmental and demographic changes.

What the researchers tested

The researchers analyzed anthropogenic ornamentation on archaeological artefacts from South Scandinavian Mesolithic portable art. They used two computational measures: Shannon information entropy, which measures information content, and perimetric complexity, which measures visual complexity.

What worked and what didn't

The combined measures allowed the authors to map changes in motif morphology across time. The results suggest a Middle Mesolithic peak in visual complexity and a gradual increase in information content, while also indicating later specialization of motif usage in the Late Mesolithic.

What to keep in mind

The abstract does not describe detailed limitations of the study. The interpretations are presented within a cognitive affordance framework and are based on the specific Mesolithic South Scandinavian portable art corpus studied here.

Key points

  • Shannon information entropy and perimetric complexity were used to quantify decorated artefacts.
  • The study reports a notable Middle Mesolithic peak in visual complexity.
  • Information content appears to increase slightly and gradually over time.
  • The authors interpret the changes as non-linear developments in ornamentation practices.
  • Late Mesolithic motif usage is described as becoming more specialized.

Disclosure

Research title:
Mesolithic ornamentation showed non-linear changes in complexity
Authors:
Lasse Lukas Platz Herskind, Riccardo Fusaroli, Helena Miton, Felix Riede
Publication date:
2026-04-01
DOI:
10.1016/j.jas.2026.106546
OpenAlex record:
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AI provenance: This post was generated by gpt-5.4-mini (OpenAI). The original authors did not write or review this post.