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Related Experiment Video

Updated: Feb 6, 2026

A Procedure to Study the Effect of Prolonged Food Restriction on Heroin Seeking in Abstinent Rats
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Manual restrictions on Palaeolithic technological behaviours.

Alastair J M Key1, Christopher J Dunmore1

  • 1School of Anthropology and Conservation, University of Kent, Canterbury, Kent, United Kingdom.

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|August 22, 2018
PubMed
Summary

Understanding stone tool innovation in the Lower Palaeolithic requires examining biomechanics. Platform preparation for Acheulean handaxes demanded greater manual pressure, suggesting advanced manipulative skills were necessary.

Keywords:
Flint knappingForceManipulationManual DexterityOldowan—Acheulean transitionStone tool innovation

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Area of Science:

  • Archaeology
  • Paleoanthropology
  • Experimental Archaeology

Background:

  • Technological innovation in the Palaeolithic is key to understanding hominin behavior.
  • The Oldowan-Acheulean transition and Acheulean technocomplex development are areas of frequent study.

Purpose of the Study:

  • To investigate the biomechanical factors influencing stone tool production techniques in the Lower Palaeolithic.
  • To explore the emergence of innovative stone tool production from an experimental and evolutionary perspective.

Main Methods:

  • Nine experienced flintknappers recreated Oldowan flake tools, early Acheulean handaxes, and late Acheulean handaxes.
  • Pressure data were collected from the core-holding hands during tool production.
  • Details recorded included percussor type, reduction stage, core-securing technique, and flaking success.

Main Results:

  • Intensively shaped handaxes did not require significantly greater manual pressure than simpler Oldowan tools.
  • Platform preparation events, associated with late Acheulean handaxes, required significantly higher pressure than basic flake removals.
  • No significant correlation was found between flaking success and pressure variation.

Conclusions:

  • The technological behavior of preparing flake platforms, crucial for late Acheulean handaxe production, may have been limited by manual dexterity.
  • The emergence of advanced precision-manipulative capabilities likely preceded the widespread adoption of complex lithic technologies like late Acheulean handaxe production.