Visuospatial integration and human evolution: the fossil evidence.
Emiliano Bruner, Marina Lozano, Carlos Lorenzo
Journal of anthropological sciences = Rivista di antropologia : JASS January 29, 2015 DOI: 10.4436/jass.94025 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Review Peer reviewed |
|---|---|
| Keywords | Hand Skull Parietal lobe Tooth Humans Cognition Paleontology Fossils Infant, newborn Biological evolution |
| Key findings | Argues that visuospatial integration—coordinating the nervous system with external space via the body—is fundamental to human activity and to extended-mind and embodied-cognition theories, in which brain, body, and external objects form a single integrated unit. The authors propose that changes in these processes were likely important in Homo sapiens evolution and review three fossil-based lines of evidence: evolutionary neuroanatomy, manipulative behaviors, and hand evolution. |
Abstract
Visuospatial integration concerns the ability to coordinate the inner and outer environments, namely the central nervous system and the outer spatial elements, through the interface of the body. This integration is essential for every basic human activity, from locomotion and grasping to speech or tooling. Visuospatial integration is even more fundamental when dealing with theories on extended mind, embodiment, and material engagement. According to the hypotheses on extended cognition, the nervous system, the body and the external objects work as a single integrated unit, and what we call "mind" is the process resulting from such interaction. Because of the relevance of culture and material culture in humans, important changes in such processes were probably crucial for the evolution of Homo sapiens. Much information in this sense can be supplied by considering issues in neuroarchaeology and cognitive sciences. Nonetheless, fossils and their anatomy can also provide evidence according to changes involving physical and body aspects. In this article, we review three sources of morphological information concerning visuospatial management and fossils: evolutionary neuroanatomy, manipulative behaviors, and hand evolution.