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Continuity, Divergence, and the Evolution of Brain Language Pathways
Recently, the assumption of evolutionary continuity between humans and non-human primates has been used to bolster the hypothesis that human language is mediated especially by the ventral extreme capsule pathway that mediates auditory object recognition in macaques. Here, we argue for the importance...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Research Foundation
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3249609/ https://www.ncbi.nlm.nih.gov/pubmed/22319495 http://dx.doi.org/10.3389/fnevo.2011.00011 |
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author | Rilling, James K. Glasser, Matthew F. Jbabdi, Saad Andersson, Jesper Preuss, Todd M. |
author_facet | Rilling, James K. Glasser, Matthew F. Jbabdi, Saad Andersson, Jesper Preuss, Todd M. |
author_sort | Rilling, James K. |
collection | PubMed |
description | Recently, the assumption of evolutionary continuity between humans and non-human primates has been used to bolster the hypothesis that human language is mediated especially by the ventral extreme capsule pathway that mediates auditory object recognition in macaques. Here, we argue for the importance of evolutionary divergence in understanding brain language evolution. We present new comparative data reinforcing our previous conclusion that the dorsal arcuate fasciculus pathway was more significantly modified than the ventral extreme capsule pathway in human evolution. Twenty-six adult human and twenty-six adult chimpanzees were imaged with diffusion-weighted MRI and probabilistic tractography was used to track and compare the dorsal and ventral language pathways. Based on these and other data, we argue that the arcuate fasciculus is likely to be the pathway most essential for higher-order aspects of human language such as syntax and lexical–semantics. |
format | Online Article Text |
id | pubmed-3249609 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Frontiers Research Foundation |
record_format | MEDLINE/PubMed |
spelling | pubmed-32496092012-02-08 Continuity, Divergence, and the Evolution of Brain Language Pathways Rilling, James K. Glasser, Matthew F. Jbabdi, Saad Andersson, Jesper Preuss, Todd M. Front Evol Neurosci Neuroscience Recently, the assumption of evolutionary continuity between humans and non-human primates has been used to bolster the hypothesis that human language is mediated especially by the ventral extreme capsule pathway that mediates auditory object recognition in macaques. Here, we argue for the importance of evolutionary divergence in understanding brain language evolution. We present new comparative data reinforcing our previous conclusion that the dorsal arcuate fasciculus pathway was more significantly modified than the ventral extreme capsule pathway in human evolution. Twenty-six adult human and twenty-six adult chimpanzees were imaged with diffusion-weighted MRI and probabilistic tractography was used to track and compare the dorsal and ventral language pathways. Based on these and other data, we argue that the arcuate fasciculus is likely to be the pathway most essential for higher-order aspects of human language such as syntax and lexical–semantics. Frontiers Research Foundation 2012-01-03 /pmc/articles/PMC3249609/ /pubmed/22319495 http://dx.doi.org/10.3389/fnevo.2011.00011 Text en Copyright © 2012 Rilling, Glasser, Jbabdi, Andersson and Preuss. http://www.frontiersin.org/licenseagreement This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited. |
spellingShingle | Neuroscience Rilling, James K. Glasser, Matthew F. Jbabdi, Saad Andersson, Jesper Preuss, Todd M. Continuity, Divergence, and the Evolution of Brain Language Pathways |
title | Continuity, Divergence, and the Evolution of Brain Language Pathways |
title_full | Continuity, Divergence, and the Evolution of Brain Language Pathways |
title_fullStr | Continuity, Divergence, and the Evolution of Brain Language Pathways |
title_full_unstemmed | Continuity, Divergence, and the Evolution of Brain Language Pathways |
title_short | Continuity, Divergence, and the Evolution of Brain Language Pathways |
title_sort | continuity, divergence, and the evolution of brain language pathways |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3249609/ https://www.ncbi.nlm.nih.gov/pubmed/22319495 http://dx.doi.org/10.3389/fnevo.2011.00011 |
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