Linguistic capacity was present in the Homo sapiens population 135 thousand years ago.

IF 2.6 3区心理学 Q2 PSYCHOLOGY, MULTIDISCIPLINARY

Frontiers in Psychology Pub Date : 2025-03-11 eCollection Date: 2025-01-01 DOI:10.3389/fpsyg.2025.1503900

Shigeru Miyagawa, Rob DeSalle, Vitor Augusto Nóbrega, Remo Nitschke, Mercedes Okumura, Ian Tattersall

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Abstract

Recent genome-level studies on the divergence of early Homo sapiens, based on single nucleotide polymorphisms, suggest that the initial population division within H. sapiens from the original stem occurred approximately 135 thousand years ago. Given that this and all subsequent divisions led to populations with full linguistic capacity, it is reasonable to assume that the potential for language must have been present at the latest by around 135 thousand years ago, before the first division occurred. Had linguistic capacity developed later, we would expect to find some modern human populations without language, or with some fundamentally different mode of communication. Neither is the case. While current evidence does not tell us exactly when language itself appeared, the genomic studies do allow a fairly accurate estimate of the time by which linguistic capacity must have been present in the modern human lineage. Based on the lower boundary of 135 thousand years ago for language, we propose that language may have triggered the widespread appearance of modern human behavior approximately 100 thousand years ago.

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来源期刊

Frontiers in Psychology PSYCHOLOGY, MULTIDISCIPLINARY-

CiteScore

5.30

自引率

13.20%

发文量

7396

审稿时长

14 weeks

期刊介绍： Frontiers in Psychology is the largest journal in its field, publishing rigorously peer-reviewed research across the psychological sciences, from clinical research to cognitive science, from perception to consciousness, from imaging studies to human factors, and from animal cognition to social psychology. Field Chief Editor Axel Cleeremans at the Free University of Brussels is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide. The journal publishes the best research across the entire field of psychology. Today, psychological science is becoming increasingly important at all levels of society, from the treatment of clinical disorders to our basic understanding of how the mind works. It is highly interdisciplinary, borrowing questions from philosophy, methods from neuroscience and insights from clinical practice - all in the goal of furthering our grasp of human nature and society, as well as our ability to develop new intervention methods.