Chet C Sherwood

Summary

Affiliation: George Washington University
Country: USA

Publications

  1. doi request reprint What's the fuss over human frontal lobe evolution?
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Trends Cogn Sci 17:432-3. 2013
  2. doi request reprint Human brain evolution writ large and small
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC, USA
    Prog Brain Res 195:237-54. 2012
  3. pmc Molecular evolution of the cytochrome c oxidase subunit 5A gene in primates
    Monica Uddin
    Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit MI 48201, USA
    BMC Evol Biol 8:8. 2008
  4. pmc A natural history of the human mind: tracing evolutionary changes in brain and cognition
    Chet C Sherwood
    Center for the Advanced Study of Hominid Paleobiology and Department of Anthropology, The George Washington University, Washington DC 20052, USA
    J Anat 212:426-54. 2008
  5. pmc Evolution of increased glia-neuron ratios in the human frontal cortex
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 103:13606-11. 2006
  6. pmc Histological asymmetries of primary motor cortex predict handedness in chimpanzees (Pan troglodytes)
    Chet C Sherwood
    Department of Anthropology, The George Washington University, 2110 G Street NW, Washington, DC 20052, USA
    J Comp Neurol 503:525-37. 2007
  7. doi request reprint Neocortical neuron types in Xenarthra and Afrotheria: implications for brain evolution in mammals
    Chet C Sherwood
    Department of Anthropology, The George Washington University, 2110 G Street, NW, Washington, DC 20052, USA
    Brain Struct Funct 213:301-28. 2009
  8. ncbi request reprint Neocortical synaptophysin asymmetry and behavioral lateralization in chimpanzees (Pan troglodytes)
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Eur J Neurosci 31:1456-64. 2010
  9. pmc Aging of the cerebral cortex differs between humans and chimpanzees
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 108:13029-34. 2011
  10. ncbi request reprint Scaling of inhibitory interneurons in areas v1 and v2 of anthropoid primates as revealed by calcium-binding protein immunohistochemistry
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Brain Behav Evol 69:176-95. 2007

Collaborators

Detail Information

Publications54

  1. doi request reprint What's the fuss over human frontal lobe evolution?
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Trends Cogn Sci 17:432-3. 2013
    ..New analyses find that the frontal lobes of humans are not relatively enlarged given our species' brain size. But are statistical cut-offs masking biologically meaningful changes in the size of the human prefrontal cortex? ..
  2. doi request reprint Human brain evolution writ large and small
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC, USA
    Prog Brain Res 195:237-54. 2012
    ....
  3. pmc Molecular evolution of the cytochrome c oxidase subunit 5A gene in primates
    Monica Uddin
    Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit MI 48201, USA
    BMC Evol Biol 8:8. 2008
    ..Here, we test the hypothesis that COX5A, the ETC gene that encodes cytochrome c oxidase subunit 5A, shows a pattern of anthropoid-specific adaptive evolution, and investigate the distribution of this protein in catarrhine brains...
  4. pmc A natural history of the human mind: tracing evolutionary changes in brain and cognition
    Chet C Sherwood
    Center for the Advanced Study of Hominid Paleobiology and Department of Anthropology, The George Washington University, Washington DC 20052, USA
    J Anat 212:426-54. 2008
    ..Finally, the unique brain growth trajectory of modern humans has made a significant contribution to our species' cognitive and linguistic abilities...
  5. pmc Evolution of increased glia-neuron ratios in the human frontal cortex
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 103:13606-11. 2006
    ....
  6. pmc Histological asymmetries of primary motor cortex predict handedness in chimpanzees (Pan troglodytes)
    Chet C Sherwood
    Department of Anthropology, The George Washington University, 2110 G Street NW, Washington, DC 20052, USA
    J Comp Neurol 503:525-37. 2007
    ..These results suggest that histological asymmetries are related to handedness in chimpanzees, while overall patterns of asymmetry at the population level might differ from humans...
  7. doi request reprint Neocortical neuron types in Xenarthra and Afrotheria: implications for brain evolution in mammals
    Chet C Sherwood
    Department of Anthropology, The George Washington University, 2110 G Street, NW, Washington, DC 20052, USA
    Brain Struct Funct 213:301-28. 2009
    ..Based on our reconstruction of character evolution, we found that the living xenarthrans and afrotherians show many similarities to the stem eutherian mammal, whereas other eutherian lineages display a greater number of derived traits...
  8. ncbi request reprint Neocortical synaptophysin asymmetry and behavioral lateralization in chimpanzees (Pan troglodytes)
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Eur J Neurosci 31:1456-64. 2010
    ..In contrast, puncta densities were symmetrical in right-handed chimpanzees. These findings support the conclusion that synapse asymmetry is modulated by lateralization of skilled motor behavior in chimpanzees...
  9. pmc Aging of the cerebral cortex differs between humans and chimpanzees
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 108:13029-34. 2011
    ..Thus, we conclude that the increased magnitude of brain structure shrinkage in human aging is evolutionarily novel and the result of an extended lifespan...
  10. ncbi request reprint Scaling of inhibitory interneurons in areas v1 and v2 of anthropoid primates as revealed by calcium-binding protein immunohistochemistry
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Brain Behav Evol 69:176-95. 2007
    ..Furthermore, these results show that phylogenetic variation exists in the microcircuitry of visual cortex that could have general implications for sensory processing...
  11. pmc Inhibitory interneurons of the human prefrontal cortex display conserved evolution of the phenotype and related genes
    Chet C Sherwood
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Biol Sci 277:1011-20. 2010
    ..Thus, it is likely that other significant modifications to the connectivity and molecular biology of the prefrontal cortex were overlaid on this conserved interneuron architecture in the course of human evolution...
  12. ncbi request reprint Cortical orofacial motor representation in Old World monkeys, great apes, and humans. II. Stereologic analysis of chemoarchitecture
    Chet C Sherwood
    Department of Anthropology, Columbia University, New York, NY, USA
    Brain Behav Evol 63:82-106. 2004
    ..These modifications might contribute to the voluntary dexterous control of orofacial muscles in great ape and human communication...
  13. pmc Broca's area homologue in chimpanzees (Pan troglodytes): probabilistic mapping, asymmetry, and comparison to humans
    Natalie M Schenker
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Cereb Cortex 20:730-42. 2010
    ..These findings suggest that Broca's area in the left hemisphere expanded in relative size during human evolution, possibly as an adaptation for our species' language abilities...
  14. doi request reprint Neocortical neuron morphology in Afrotheria: comparing the rock hyrax with the African elephant
    Serena Bianchi
    Department of Anthropology, The George Washington University, Washington, DC, USA
    Ann N Y Acad Sci 1225:37-46. 2011
    ..Regional variations in pyramidal structure have also been observed in the African elephant, as well as a number of primate species...
  15. pmc Dendritic morphology of pyramidal neurons in the chimpanzee neocortex: regional specializations and comparison to humans
    Serena Bianchi
    Department of Anthropology, The George Washington University, Washington, DC
    Cereb Cortex 23:2429-36. 2013
    ..Compared with chimpanzees, the pyramidal neurons of humans had significantly longer and more branched dendritic arbors in all cortical regions. ..
  16. doi request reprint Hominoid visual brain structure volumes and the position of the lunate sulcus
    Alexandra A de Sousa
    Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    J Hum Evol 58:281-92. 2010
    ..These results suggest that inferences about the position of the lunate sulcus on fossil endocasts may provide information about brain organization...
  17. pmc Synaptogenesis and development of pyramidal neuron dendritic morphology in the chimpanzee neocortex resembles humans
    Serena Bianchi
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 110:10395-401. 2013
    ..These results suggest that evolutionary changes to neocortical development promoting greater neuronal plasticity early in postnatal life preceded the divergence of the human and chimpanzee lineages...
  18. pmc A volumetric comparison of the insular cortex and its subregions in primates
    Amy L Bauernfeind
    Department of Anthropology, Hominid Paleobiology Doctoral Program, The George Washington University, Washington, DC 20052, USA
    J Hum Evol 64:263-79. 2013
    ....
  19. pmc Prolonged myelination in human neocortical evolution
    Daniel J Miller
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Natl Acad Sci U S A 109:16480-5. 2012
    ..Thus, these species differences suggest that the human-specific shift in the timing of cortical maturation during adolescence may have implications for vulnerability to certain psychiatric disorders...
  20. doi request reprint Comparative cytoarchitectural analyses of striate and extrastriate areas in hominoids
    Alexandra A de Sousa
    Center for Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Cereb Cortex 20:966-81. 2010
    ..In particular, species-specific differences in cell volume density seem to be most closely linked to the size of structures in the visual system...
  21. pmc Wernicke's area homologue in chimpanzees (Pan troglodytes) and its relation to the appearance of modern human language
    Muhammad A Spocter
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Biol Sci 277:2165-74. 2010
    ..Moreover, this study provides the first evidence of covariance between asymmetry of anterior and posterior cortical regions that in humans are important to language and other higher order cognitive functions...
  22. ncbi request reprint Neuroanatomical basis of facial expression in monkeys, apes, and humans
    Chet C Sherwood
    Department of Anthropology, Columbia University, New York, New York 10027, USA
    Ann N Y Acad Sci 1000:99-103. 2003
  23. ncbi request reprint Cortical orofacial motor representation in Old World monkeys, great apes, and humans. I. Quantitative analysis of cytoarchitecture
    Chet C Sherwood
    Department of Anthropology, Columbia University, New York, NY, USA
    Brain Behav Evol 63:61-81. 2004
    ..These phylogenetic differences in microstructure might provide an anatomical substrate for the evolution of greater volitional fine motor control of facial expressions in great apes and humans...
  24. ncbi request reprint Synaptosomal Lactate Dehydrogenase Isoenzyme Composition Is Shifted toward Aerobic Forms in Primate Brain Evolution
    Tetyana Duka
    Department of Anthropology, The George Washington University, Washington, D C, USA
    Brain Behav Evol 83:216-30. 2014
    ..2014 S. Karger AG, Basel. ..
  25. ncbi request reprint Variable temporoinsular cortex neuroanatomy in primates suggests a bottleneck effect in eastern gorillas
    Sarah K Barks
    Center for the Advanced Study of Hominid Paleobiology and Department of Anthropology, The George Washington University, Washington, DC, 20052
    J Comp Neurol 522:844-60. 2014
    ..Characterizing the phylogenetic distribution of this morphology highlights a derived feature of these great apes...
  26. pmc Comparative anatomy of the locus coeruleus in humans and nonhuman primates
    Yukti Sharma
    Department of Physiology and Biophysics, College of Medicine, Howard University, Washington, DC 20059, USA
    J Comp Neurol 518:963-71. 2010
    ....
  27. pmc Biochemical specificity of von Economo neurons in hominoids
    Cheryl D Stimpson
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Am J Hum Biol 23:22-8. 2011
    ..Recent evidence indicates that unique patterns of protein expression may also characterize VENs, particularly involving molecules that are known to regulate gut and immune function...
  28. ncbi request reprint Is humanlike cytoarchitectural asymmetry present in another species with complex social vocalization? A stereologic analysis of mustached bat auditory cortex
    Chet C Sherwood
    Department of Anthropology, Kent State University, Kent, OH 44242 0001, USA
    Brain Res 1045:164-74. 2005
    ..Resolution of these alternatives will require further data on the microstructure of auditory cortex in species with lateralized perception of acoustic social communication...
  29. pmc Neuropil distribution in the cerebral cortex differs between humans and chimpanzees
    Muhammad A Spocter
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    J Comp Neurol 520:2917-29. 2012
    ..These species differences in neuropil distribution may offer insight into the neural basis of human cognition, reflecting enhancement of the integrative capacity of the prefrontal cortex...
  30. ncbi request reprint Variability of Broca's area homologue in African great apes: implications for language evolution
    Chet C Sherwood
    Department of Anthropology, Columbia University, New York, New York 10027, USA
    Anat Rec A Discov Mol Cell Evol Biol 271:276-85. 2003
    ..Whether or not Broca's area homologue of great apes exhibits humanlike asymmetry can only be resolved through further analyses of microstructural components...
  31. ncbi request reprint Evolution of specialized pyramidal neurons in primate visual and motor cortex
    Chet C Sherwood
    Department of Anthropology, Columbia University, New York, NY, USA
    Brain Behav Evol 61:28-44. 2003
    ..Modification of the connectional and physiological properties of these neurons could constitute an important evolutionary mode for species-specific adaptation...
  32. doi request reprint Neuronal populations in the basolateral nuclei of the amygdala are differentially increased in humans compared with apes: a stereological study
    Nicole Barger
    Department of Anthropology, University of California, San Diego, La Jolla, California 92093, USA
    J Comp Neurol 520:3035-54. 2012
    ....
  33. ncbi request reprint Aerobic glycolysis in the primate brain: reconsidering the implications for growth and maintenance
    Amy L Bauernfeind
    Department of Anthropology, The George Washington University, 2110 G St NW, Washington, DC, 20052, USA
    Brain Struct Funct 219:1149-67. 2014
    ..We conclude that comparative studies of metabolic appropriation in the brain may contribute to the discussion of human cognitive evolution and to the understanding of human-specific aging and the etiology of neuropsychiatric diseases. ..
  34. ncbi request reprint Analysis of Synaptic Gene Expression in the Neocortex of Primates Reveals Evolutionary Changes in Glutamatergic Neurotransmission
    Gerard Muntane
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Cereb Cortex . 2014
    ..These results could entail functional modifications in the regulation of specific genes related to processes underlying learning and memory...
  35. pmc Increased morphological asymmetry, evolvability and plasticity in human brain evolution
    Aida Gómez-Robles
    Department of Anthropology, The George Washington University, Washington, DC 20052, USA
    Proc Biol Sci 280:20130575. 2013
    ..We infer that these two characteristics can have a role in human cognitive evolution...
  36. doi request reprint Early brain growth cessation in wild Virunga mountain gorillas (Gorilla beringei beringei)
    Shannon C McFarlin
    Department of Anthropology, Center for the Advanced Study of Hominid Paleobiology, The George Washington University, Washington, DC 20052, USA
    Am J Primatol 75:450-63. 2013
    ..Our findings demonstrate that brain growth is completed early in Virunga mountain gorillas compared to other great apes studied thus far, in a manner that appears to be linked with other life history characteristics of this population...
  37. doi request reprint Ectocranial suture closure in Pan troglodytes and Gorilla gorilla: pattern and phylogeny
    James Cray
    Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Am J Phys Anthropol 136:394-9. 2008
    ..gorilla exhibits a unique vault pattern, which, unlike humans and P. troglodytes, follows a strong posterior-to-anterior gradient. P. troglodytes is therefore more like Homo sapiens in suture synostosis...
  38. pmc Correlated evolution of brain regions involved in producing and processing facial expressions in anthropoid primates
    Seth D Dobson
    Department of Anthropology, Dartmouth College, Hanover, NH 03755, USA
    Biol Lett 7:86-8. 2011
    ..We conclude that catarrhine brains are adapted for producing and processing complex facial displays...
  39. doi request reprint Phylogenetic comparison of neuron and glia densities in the primary visual cortex and hippocampus of carnivores and primates
    Eric Lewitus
    Department of Anthropology, University College London, London WC1H 0BW, United Kingdom
    Evolution 66:2551-63. 2012
    ..We propose that adaptations to modularity at the cellular level may carry a deep phylogenetic signal...
  40. pmc Mosaic evolution of brainstem motor nuclei in catarrhine primates
    Seth D Dobson
    Department of Anthropology, Dartmouth College, Hanover, NH 03755, USA
    Anat Res Int 2011:236894. 2011
    ..This finding provides additional support for the mosaic view of brain evolution...
  41. ncbi request reprint Interlaminar astroglial processes in the cerebral cortex of great apes
    Jorge A Colombo
    Unidad de Neurobiologia Aplicada CEMIC CONICET, Av Galván 4102, 1431 Ciudad de Buenos Aires, Argentina
    Anat Embryol (Berl) 208:215-8. 2004
    ....
  42. ncbi request reprint Primary motor cortex asymmetry is correlated with handedness in capuchin monkeys (Cebus apella)
    Kimberley A Phillips
    Department of Psychology, Hiram College, Hiram, OH 44234, USA
    Behav Neurosci 119:1701-4. 2005
    ..Cerebral hemispheric specialization for hand preference is not uniquely human and may be more common among primates in general...
  43. ncbi request reprint Differences in cortical serotonergic innervation among humans, chimpanzees, and macaque monkeys: a comparative study
    Mary Ann Raghanti
    Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA
    Cereb Cortex 18:584-97. 2008
    ..These features may represent a greater capacity for cortical plasticity exclusive to hominoids. Taken together, these results indicate a significant reorganization of cortical serotonergic transmission in humans and chimpanzees...
  44. ncbi request reprint Morphomolecular neuronal phenotypes in the neocortex reflect phylogenetic relationships among certain mammalian orders
    Patrick R Hof
    Department of Neuroscience, Mount Sinai School of Medicine, New York 10029, USA
    Anat Rec A Discov Mol Cell Evol Biol 287:1153-63. 2005
    ....
  45. ncbi request reprint Cholinergic innervation of the frontal cortex: differences among humans, chimpanzees, and macaque monkeys
    Mary Ann Raghanti
    Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA
    J Comp Neurol 506:409-24. 2008
    ..This feature was also sporadically observed in chimpanzee cortex. Our findings suggest a potential alteration of cortical cholinergic afferents within the prefrontal cortex of humans and chimpanzees, to the exclusion of macaque monkeys...
  46. ncbi request reprint Is prefrontal white matter enlargement a human evolutionary specialization?
    Chet C Sherwood
    Nat Neurosci 8:537-8; author reply 538. 2005
  47. ncbi request reprint Brain structure variation in great apes, with attention to the mountain gorilla (Gorilla beringei beringei)
    Chet C Sherwood
    Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA
    Am J Primatol 63:149-64. 2004
    ..Importantly, these results fill a critical gap in current knowledge regarding great ape neuroanatomical diversity...
  48. ncbi request reprint Evolution of the brainstem orofacial motor system in primates: a comparative study of trigeminal, facial, and hypoglossal nuclei
    Chet C Sherwood
    Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA
    J Hum Evol 48:45-84. 2005
    ....
  49. ncbi request reprint Comparative anatomy of the facial motor nucleus in mammals, with an analysis of neuron numbers in primates
    Chet C Sherwood
    Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, Ohio 44242, USA
    Anat Rec A Discov Mol Cell Evol Biol 287:1067-79. 2005
    ..Great apes and humans, however, display moderately more VII neurons that expected for their medulla size...
  50. pmc Cerebral petalias and their relationship to handedness in capuchin monkeys (Cebus apella)
    Kimberley A Phillips
    Department of Psychology, Hiram College, Hiram, OH 44234, USA
    Neuropsychologia 45:2398-401. 2007
    ..The role of the morphologically asymmetric frontal cortex in capuchins is unclear, but may reflect developmental gradients or directional selection for various behavioral functions, such as extractive foraging or social group complexity...
  51. ncbi request reprint Stereologic characterization and spatial distribution patterns of Betz cells in the human primary motor cortex
    Claire Bénédicte Rivara
    Department of Psychiatry, Neuropsychiatry Division, HUG Belle Idée, University of Geneva School of Medicine, Geneva, Switzerland
    Anat Rec A Discov Mol Cell Evol Biol 270:137-51. 2003
    ....
  52. pmc Distinct genomic signatures of adaptation in pre- and postnatal environments during human evolution
    Monica Uddin
    Center for Molecular Medicine and Genetics and Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA
    Proc Natl Acad Sci U S A 105:3215-20. 2008
    ..Comparing adaptively evolving genes from pre- and postnatal-stage tissues suggests that different selective pressures act on the development vs. the maintenance of the human phenotype...
  53. ncbi request reprint Of muscle-bound crania and human brain evolution: the story behind the MYH16 headlines
    Melanie A McCollum
    J Hum Evol 50:232-6. 2006
  54. ncbi request reprint Brain of the African elephant (Loxodonta africana): neuroanatomy from magnetic resonance images
    Atiya Y Hakeem
    Division of Biology, California Institute of Technology, Pasadena, California 91125, USA
    Anat Rec A Discov Mol Cell Evol Biol 287:1117-27. 2005
    ..Finally, the elephant has an unusually large and convoluted hippocampus compared to primates and especially to cetaceans. This may be related to the extremely long social and chemical memory of elephants...