The language-ready head: Evolutionary considerations
Open accessAbstract
This article offers a succinct overview of the hypothesis that the evolution of cognition could benefit from a close examination of brain changes reflected in the shape of the neurocranium. I provide both neurological and genetic evidence in support of this hypothesis, and conclude that the study of language evolution need not be regarded as a mystery.
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We suggest that modifications of a complex network in cognition or learning took place in modern human evolution, possibly related to other brain-related, vocal tract or neural changes.
“We suggest that modifications of a complex network in cognition or learning took place in modern human evolution128, possibly related to other brain-related9,16,129,130, vocal tract131 or neural changes132.”
From A catalog of single nucleotide changes distinguishing modern humans from archaic hominins (2019) · cites this paper as [16]
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Cites
Fodor, J. A. (1983) · doi:10.7551/mitpress/4737.001.0001 · Cited by 7,734 · see citing works
The faculty of language: what is it, who has it, and how did it evolve?
Hauser, M. D., Chomsky, N., & Fitch, W. T. (2002) · Science · doi:10.1126/science.298.5598.1569 · Cited by 5,189 · see citing works
Buzsáki, G. (2006) · doi:10.1093/acprof:oso/9780195301069.001.0001 · Cited by 4,873 · see citing works
Three Factors in Language Design
Chomsky, N. A. D. T. (2005) · Linguistic Inquiry · doi:10.1162/0024389052993655 · Cited by 2,668 · see citing works
Matthei, E. H. (1984) · Language · doi:10.2307/413815 · Cited by 2,189 · see citing works
A forkhead-domain gene is mutated in a severe speech and language disorder
Lai, C. S. L., Fisher, S. E., Hurst, J. A., Vargha‐Khadem, F., & Monaco, A. P. (2001) · Nature · doi:10.1038/35097076 · Cited by 2,053 · see citing works
(1975) · Medical Entomology and Zoology · Cited by 2,045 · see citing works
Cortical oscillations and speech processing: emerging computational principles and operations
Giraud, A., & Poeppel, D. (2012) · Nature Neuroscience · doi:10.1038/nn.3063 · Cited by 1,924 · see citing works
Perisylvian language networks of the human brain
Catani, M., Jones, D. K., & ffytche, D. H. (2005) · Annals of Neurology · doi:10.1002/ana.20319 · Cited by 1,832 · see citing works
Cortical tracking of hierarchical linguistic structures in connected speech
Ding, N., Melloni, L., Zhang, H., Tian, X., & Poeppel, D. (2016) · Nature Neuroscience · doi:10.1038/nn.4186 · Cited by 1,059 · see citing works
The triple helix: gene, organism, and environment
(2000) · Choice Reviews Online · doi:10.5860/choice.38-0277 · Cited by 831 · see citing works
Wilkins, A. S., Wrangham, R. W., & Fitch, W. T. (2014) · Genetics · doi:10.1534/genetics.114.165423 · Cited by 751 · see citing works
The Triple Helix: Gene, Organism and Environment
Gordon, D. M. (2000) · Nature Medicine · doi:10.1038/81288 · Cited by 701 · see citing works
DeMyer, W. E., Zeman, W., & Palmer, C. G. (1964) · PEDIATRICS · doi:10.1542/peds.34.2.256 · Cited by 689 · see citing works
Reworking the language network
Fedorenko, E., & Thompson-Schill, S. L. (2014) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2013.12.006 · Cited by 615 · see citing works
Beyond the arcuate fasciculus: consensus and controversy in the connectional anatomy of language
Dick, A. S., & Tremblay, P. (2012) · Brain · doi:10.1093/brain/aws222 · Cited by 470 · see citing works
The Oxford Handbook of Language Evolution
Tallerman, M., & Gibson, K. (2011) · Oxford University Press eBooks · doi:10.1093/oxfordhb/9780199541119.001.0001 · Cited by 443 · see citing works
The Evolution of the Human Head
Lieberman, D. E. (2011) · doi:10.4159/9780674059443 · Cited by 408 · see citing works
The Neurobiology of Language Beyond Single Words
Peter Hagoort, A., & Indefrey, P. (2014) · Annual Review of Neuroscience · doi:10.1146/annurev-neuro-071013-013847 · Cited by 403 · see citing works
Human-specific transcriptional regulation of CNS development genes by FOXP2
Konopka, G., Bomar, J. M., Winden, K., Coppola, G., Jonsson, Z. O., Gao, F., Peng, S., Preuss, T. M., Wohlschlegel, J. A., & Geschwind, D. H. (2009) · Nature · doi:10.1038/nature08549 · Cited by 390 · see citing works
Towards a bottom-up perspective on animal and human cognition
de Waal, F. B. M., & Ferrari, P. F. (2010) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2010.03.003 · Cited by 370 · see citing works
The mystery of language evolution
HAUSER, M. D., Yang, C. D., Berwick, R. C., Tattersall, I., Ryan, M. J., Watumull, J., Chomsky, N., & Lewontin, R. C. (2014) · Frontiers in Psychology · doi:10.3389/fpsyg.2014.00401 · Cited by 331 · see citing works
Brain development after birth differs between Neanderthals and modern humans
Gunz, P., Neubauer, S., Maureille, B., & Hublin, J.-J. (2010) · Current Biology · doi:10.1016/j.cub.2010.10.018 · Cited by 304 · see citing works
The Brain and Its Role in the Phylogenetic Transformation of the Human Skull
Weidenreich, F. (1941) · Transactions of the American Philosophical Society · doi:10.2307/1005610 · Cited by 296 · see citing works
Vernes, S. C., Spiteri, E., Nicod, J., Groszer, M., Taylor, J. M., Davies, K. E., Geschwind, D. H., & Fisher, S. E. (2007) · The American Journal of Human Genetics · doi:10.1086/522238 · Cited by 268 · see citing works
Neurobiological roots of language in primate audition: common computational properties
Bornkessel‐Schlesewsky, I., Schlesewsky, M., Small, S. L., & Rauschecker, J. P. (2015) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2014.12.008 · Cited by 245 · see citing works
Pearce, E., Stringer, C. B., & Dunbar, R. (2013) · Proceedings of the Royal Society B Biological Sciences · doi:10.1098/rspb.2013.0168 · Cited by 221 · see citing works
Dog Behavior Co-Varies with Height, Bodyweight and Skull Shape
McGreevy, P. D., Georgevsky, D., Carrasco, J., Valenzuela, M., Duffy, D. L., & Serpell, J. A. (2013) · PLoS ONE · doi:10.1371/journal.pone.0080529 · Cited by 213 · see citing works
Neubauer, S., Gunz, P., & Hublin, J.-J. (2010) · Journal of Human Evolution · doi:10.1016/j.jhevol.2010.06.011 · Cited by 199 · see citing works
The Human Condition—A Molecular Approach
Pääbo, S. (2014) · Cell · doi:10.1016/j.cell.2013.12.036 · Cited by 197 · see citing works
Gunz, P., Neubauer, S., Golovanova, L., Doronichev, V., Maureille, B., & Hublin, J.-J. (2012) · Journal of Human Evolution · doi:10.1016/j.jhevol.2011.11.013 · Cited by 197 · see citing works
Evolution of the base of the brain in highly encephalized human species
Bastir, M., Rosas, A., Gunz, P., Peña-Melián, Á., Manzi, G., Harvati, K., Kruszynski, R., Stringer, C. B., & Hublin, J. (2011) · Nature Communications · doi:10.1038/ncomms1593 · Cited by 194 · see citing works
A model for Social Communication And Language Evolution and Development (SCALED)
Catani, M., & Bambini, V. (2014) · Current Opinion in Neurobiology · doi:10.1016/j.conb.2014.07.018 · Cited by 177 · see citing works
Chomsky, N. (2007) · Biolinguistics · doi:10.5964/bioling.8585 · Cited by 175 · see citing works
Brain ontogeny and life history in Pleistocene hominins
Hublin, J.-J., Neubauer, S., & Gunz, P. (2015) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2014.0062 · Cited by 173 · see citing works
Syntactic processing is distributed across the language system
Blank, I., Balewski, Z. Z., Mahowald, K., & Fedorenko, E. G. (2015) · NeuroImage · doi:10.1016/j.neuroimage.2015.11.069 · Cited by 164 · see citing works
The shape of the human language-ready brain
Boeckx, C. A. (2014) · Frontiers in Psychology · doi:10.3389/fpsyg.2014.00282 · Cited by 158 · see citing works
Self-citationGrounding language processing on basic neurophysiological principles
Friederici, A. D., & Singer, W. (2015) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2015.03.012 · Cited by 147 · see citing works
Ji, J., Lee, H., Argiropoulos, B., Dorrani, N., Mann, J., Martinez-Agosto, J. A., Gomez-Ospina, N., Gallant, N., Bernstein, J. A., Hudgins, L., et al. (2015) · European Journal of Human Genetics · doi:10.1038/ejhg.2015.71 · Cited by 145 · see citing works
Morphological Differences in the Parietal Lobes within the Human Genus
Bruner, E. (2010) · Current Anthropology · doi:10.1086/650729 · Cited by 144 · see citing works
Elementary Syntactic Structures
Boeckx, C. A. (2014) · Cambridge University Press eBooks · doi:10.1017/cbo9781139524391 · Cited by 136 · see citing works
Self-citationTemporal Attention as a Scaffold for Language Development
de Diego‐Balaguer, R., Martinez‐Alvarez, A., & Pons, F. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2016.00044 · Cited by 128 · see citing works
Motor system evolution and the emergence of high cognitive functions
Mendoza, G., & Merchant, H. (2014) · Progress in Neurobiology · doi:10.1016/j.pneurobio.2014.09.001 · Cited by 126 · see citing works
Human Induced Rotation and Reorganization of the Brain of Domestic Dogs
Roberts, T., McGreevy, P. D., & Valenzuela, M. (2010) · PLoS ONE · doi:10.1371/journal.pone.0011946 · Cited by 117 · see citing works
Wilson, B., Kikuchi, Y., Sun, L. Y., Hunter, D., Dick, F., Smith, K., Thiele, A., Griffiths, T. D., Marslen‐Wilson, W. D., & Petkov, C. I. (2015) · Nature Communications · doi:10.1038/ncomms9901 · Cited by 115 · see citing works
The Neural Circuitry Underlying Primate Calls and Human Language
Deacon, T. W. (1992) · Springer eBooks · doi:10.1007/978-94-017-2039-7_8 · Cited by 107 · see citing works
Comprehensive identification and analysis of human accelerated regulatory DNAPreprint
Gittelman, R. M., Hun, E., Ay, F., Madeoy, J. J., Pennacchio, L. A., Noble, W. S., Hawkins, R. D., & Akey, J. M. (2015) · Genome Research · doi:10.1101/gr.192591.115 · Cited by 106 · see citing works
Differences in Neural Activation for Object-Directed Grasping in Chimpanzees and Humans
Hecht, E. E., Murphy, L. E., Gutman, D. A., Votaw, J. R., Schuster, D. M., Preuss, T. M., Orban, G. A., Stout, D., & Parr, L. A. (2013) · Journal of Neuroscience · doi:10.1523/jneurosci.2172-13.2013 · Cited by 105 · see citing works
The neural circuitry underlying primate calls and human language
Deacon, T. W. (1989) · Human Evolution · doi:10.1007/bf02436435 · Cited by 104 · see citing works
Kumar, V. V., Croxson, P. L., & Simonyan, K. (2016) · Journal of Neuroscience · doi:10.1523/jneurosci.3914-15.2016 · Cited by 91 · see citing works
The Challenge of Understanding the Brain: Where We Stand in 2015
Lisman, J. E. (2015) · Neuron · doi:10.1016/j.neuron.2015.03.032 · Cited by 82 · see citing works
Rodenas-Cuadrado, P., Pietrafusa, N., Francavilla, T., Neve, A. L., Striano, P., & Vernes, S. C. (2016) · BMC Medical Genetics · doi:10.1186/s12881-016-0272-8 · Cited by 81 · see citing works
Language Development and the Ontogeny of the Dorsal Pathway
Friederici, A. D. (2012) · Frontiers in Evolutionary Neuroscience · doi:10.3389/fnevo.2012.00003 · Cited by 75 · see citing works
Associations between Domestic-Dog Morphology and Behaviour Scores in the Dog Mentality Assessment
Stone, H. R., McGreevy, P. D., Starling, M. J., & Forkman, B. (2016) · PLOS ONE · doi:10.1371/journal.pone.0149403 · Cited by 71 · see citing works
Foxp1/2/4 regulate endochondral ossification as a suppresser complex
Zhao, H., Zhou, W., Yao, Z., Wan, Y., Cao, J., Zhang, L., Zhao, J., Li, H., Zhou, R., Li, B., et al. (2014) · Developmental Biology · doi:10.1016/j.ydbio.2014.12.007 · Cited by 69 · see citing works
Brain shape convergence in the adaptive radiation of New World monkeys
Arístide, L., dos Reis, S. F., Machado, A. C., Lima, I., Lopes, R. T., & Pérez, S. I. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1514473113 · Cited by 69 · see citing works
Boeckx, C. A., & Benítez‐Burraco, A. (2014) · Frontiers in Psychology · doi:10.3389/fpsyg.2014.01324 · Cited by 65 · see citing works
Self-citationThe brain and the braincase: a spatial analysis on the midsagittal profile in adult humans
Bruner, E., Amano, H., de la Cuétara, J. M., & Ogihara, N. (2015) · Journal of Anatomy · doi:10.1111/joa.12355 · Cited by 55 · see citing works
Possible functional links among brain- and skull-related genes selected in modern humans
Benítez‐Burraco, A., & Boeckx, C. A. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.00794 · Cited by 54 · see citing works
Self-citationA Shared Pattern of Postnatal Endocranial Development in Extant Hominoids
Scott, N. A., Neubauer, S., Hublin, J., & Gunz, P. (2014) · Evolutionary Biology · doi:10.1007/s11692-014-9290-7 · Cited by 51 · see citing works
Lozano, R., Vino, A., Lozano, C. B., Fisher, S. E., & Deriziotis, P. (2015) · European Journal of Human Genetics · doi:10.1038/ejhg.2015.66 · Cited by 51 · see citing works
Biolinguistics: forays into human cognitive biology.
Boeckx, C. A. (2013) · PubMed · doi:10.4436/jass.91009 · Cited by 50 · see citing works
Self-citationCarril, J., Tambussi, C. P., Degrange, F. J., Saldívar, M. J. B., & Picasso, M. B. J. (2015) · Journal of Anatomy · doi:10.1111/joa.12325 · Cited by 44 · see citing works
Globularization and domestication.
Benítez-Burraco, A., Theofanopoulou, C., & Boeckx, C. (2018) · Topoi · doi:10.1007/s11245-016-9399-7 · Cited by 42 · see citing works
Self-citationIntragenic duplication—A novel causative mechanism for SATB2‐associated syndrome
Liedén, A., Kvarnung, M., Nilsson, D., Sahlin, E., & Lundberg, E. S. (2014) · American Journal of Medical Genetics Part A · doi:10.1002/ajmg.a.36769 · Cited by 39 · see citing works
Lewontin, R. C. (1990) · Cited by 38 · see citing works
Expression of forkhead box transcription factor genes Foxp1 and Foxp2 during jaw development
Cesario, J. M., Almaidhan, A. A., & Jeong, J. (2016) · Gene Expression Patterns · doi:10.1016/j.gep.2016.03.001 · Cited by 29 · see citing works
Brain asymmetry in the white matter making and globularity
Theofanopoulou, C. (2015) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.01355 · Cited by 18 · see citing works
Osteogenesis and neurogenesis: a robust link also for language evolution
Boeckx, C. A., & Benítez‐Burraco, A. (2015) · Frontiers in Cellular Neuroscience · doi:10.3389/fncel.2015.00291 · Cited by 18 · see citing works
Self-citationThe emergence of language, from a biolinguistic point of view
Boeckx, C. A. (2011) · Oxford University Press eBooks · doi:10.1093/oxfordhb/9780199541119.013.0052 · Cited by 16 · see citing works
Self-citationThe Neurophysiology and Evolution of the Speech Rhythm
Ghazanfar, A. A., & Poeppel, D. (2014) · The Cognitive Neurosciences · doi:10.7551/mitpress/9504.003.0069 · Cited by 12 · see citing works
Flagged first, then by citations
2 of the 73 references couldn’t be matched to a known paper.
Research works printed but not linked: 3
- Lewontin, R. 1998. Evolution of cognition. Questions we will never answer. In D. Scarborough & S. Sternberg (Eds.), An invitation to cognitive science: Vol. 4. Methods, models, and conceptual issues. Cambridge, MA: MIT Press.
- Theofanopoulou, C., & Boeckx, C. (in press). (Neural) syntax. In R. Martin & A. Gallego (Eds.), Language, syntax, and the natural sciences. Cambridge, UK: Cambridge University Press.
- Uttal WR The new phrenology: The limits of localizing cognitive processes in the brain 2001 Cambridge, MA MIT Press
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Fitch, W. T. (2017) · Psychonomic Bulletin & Review · doi:10.3758/s13423-017-1236-5 · Cited by 259 · see citing works
A catalog of single nucleotide changes distinguishing modern humans from archaic hominins
Kuhlwilm, M., & Boeckx, C. (2019) · Scientific Reports · doi:10.1038/s41598-019-44877-x · Cited by 108 · see citing works
Self-citationWhat aDNA can (and cannot) tell us about the emergence of language and speech
DeSalle, R., & Tattersall, I. (2017) · Journal of Language Evolution · doi:10.1093/jole/lzx018 · Cited by 29 · see citing works
Zug, R., & Uller, T. (2022) · Evolutionary Human Sciences · doi:10.1017/ehs.2022.42 · Cited by 16 · see citing works
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Boeckx, C. A. (2023) · Frontiers in Neuroscience · doi:10.3389/fnins.2023.1080861 · Cited by 14 · see citing works
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Martins, P. T., & Boeckx, C. (2016) · Linguistics Vanguard · doi:10.1515/lingvan-2016-0007 · Cited by 11 · see citing works
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Mounier, A., Noûs, C., & Balzeau, A. (2020) · Bulletins et Mémoires de la Société d anthropologie de Paris · doi:10.3166/bmsap-2020-0098 · Cited by 9 · see citing works
Boeckx, C. A. (2016) · Elsevier eBooks · doi:10.1016/b978-0-12-804042-3.00133-0 · Cited by 8 · see citing works
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Boeckx, C. A. (2016) · Journal of Neurolinguistics · doi:10.1016/j.jneuroling.2016.08.003 · Cited by 7 · see citing works
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Funato, N., Heliövaara, A., & Boeckx, C. A. (2024) · The American Journal of Human Genetics · doi:10.1016/j.ajhg.2024.03.012 · Cited by 4 · see citing works
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Ruland, M., Andirkó, A., Romanowska, I., & Boeckx, C. A. (2023) · Adaptive Behavior · doi:10.1177/10597123221147336 · Cited by 6 · see citing works
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- Authors
- Boeckx, C.
- Affiliations
- Institució Catalana de Recerca i Estudis Avançats (ES)
- Corresponding author
- Boeckx, Cedric
- ORCID
- Boeckx, Cedric
- Venue
- Psychonomic Bulletin & Review
- Published
- 2016-07-01
- Volume
- 24
- Issue
- 1
- Pages
- 194-199
- ISSN
- 1069-9384 (ISSN-L)
- 1531-5320
- PMC
- PMC5325863
- OpenAlex
- W2474721871
- Cited by
- 23
- References
- 73
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 3 · 2016: 3
- FWCI
- 1.86
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Psychonomic Bulletin & Review (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Marie Curie Actions, European Union (PIRG-GA-2009-256413)
- Generalitat de Catalunya (2014-SGR-200)
- Ministerio de Economía y Competitividad (FFI2014-61888-EXP)
- Topics
- Social Sciences › Cultural Studies › Language and cultural evolution
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
- Keywords
- language evolution, skull morphology, cognitive evolution, brain evolution
- MeSH terms
- Brain, Cognition, Biological Evolution, Humans, Language
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