The evolution of early symbolic behavior in Homo sapiens

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

How did human symbolic behavior evolve? Dating up to about 100,000 y ago, the engraved ochre and ostrich eggshell fragments from the South African Blombos Cave and Diepkloof Rock Shelter provide a unique window into presumed early symbolic traditions of Homo sapiens and how they evolved over a period of more than 30,000 y. Using the engravings as stimuli, we report five experiments which suggest that the engravings evolved adaptively, becoming better-suited for human perception and cognition. More specifically, they became more salient, memorable, reproducible, and expressive of style and human intent. However, they did not become more discriminable over time between or within the two archeological sites. Our observations provide support for an account of the Blombos and Diepkloof engravings as decorations and as socially transmitted cultural traditions. By contrast, there was no clear indication that they served as denotational symbolic signs. Our findings have broad implications for our understanding of early symbolic communication and cognition in H. sapiens.

Detaljer

Författare
  • Kristian Tylén
  • Riccardo Fusaroli
  • Sergio Rojo
  • Katrin Heimann
  • Nicolas Fay
  • Niels Nørkjær Johannsen
  • Felix Riede
  • Marlize Lombard
Externa organisationer
  • Aarhus University
  • University of Western Australia, Perth
  • University of Johannesburg
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kommunikationsvetenskap

Nyckelord

Originalspråkengelska
Sidor (från-till)4578-4584
TidskriftProceedings of the National Academy of Sciences of the United States of America
Volym117
Utgåva nummer9
StatusPublished - 2020
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa