Cited by 107Visual perception and processing mechanismsMotor Control and AdaptationNeural and Behavioral Psychology Studies

Cytoarchitectonic subdivisions of the dorsolateral frontal cortex of the marmoset monkey (Callithrix jacchus), and their projections to dorsal visual areas

Burman, Kathleen J., Palmer, Susan M., Gamberini, Michela, Rosa, Marcello G.P.·2006·The Journal of Comparative Neurology

Abstract

We describe the organization of the dorsolateral frontal areas in marmoset monkeys using a combination of architectural methods (Nissl, cytochrome oxidase, and myelin stains) and injections of fluorescent tracers in extrastriate areas (the second visual area [V2], the dorsomedial and dorsoanterior areas [DM, DA], the middle temporal area and middle temporal crescent [MT, MTc], and the posterior parietal cortex [area 7]). Cytoarchitectural field 8 comprises three subdivisions: 8Av, 8Ad, and 8B. The ventrolateral subdivision, 8Av, forms the principal source of frontal projections to the "dorsal stream," having connections with each of the injected visual areas. The cytoarchitectural characteristics of 8Av suggest that this subdivision corresponds to the marmoset's frontal eye field. The intermediate subdivision of area 8 (8Ad) has efferent projections to area 7, while the dorsomedial subdivision (8B) has few or no connections with extrastriate cortex. Area 46, located rostrolateral to area 8Av, has substantial connections with the medial extrastriate areas (DM, DA, and area 7) and with MT, while the cortex lateral to 8Av (area 12/45) projects primarily to MT and to the MTc. The rostromedial prefrontal (area 9) and frontopolar (area 10) regions have very few extrastriate projections. Finally, cells in dorsal area 6 (6d) have sparse projections to DM, MT, and the MTc, as well as strong projections to DA and to area 7. These results illuminate aspects of the evolutionary development of the primate frontal cortex, and serve as a basis for further research into cognitive functions using a marmoset model.

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Crossref · 10.1002/cne.20837

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  • The homologous cortical area 9L could be unambiguously identified across species upon histological observation, and stereologic counts of cell densities were confined to its borders.

    “Therefore, we were able to unambiguously identify this homologous cortical area across species upon histological observation, and our stereologic counts of cell densities were confined to its borders.”

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Authors
Burman, K. J., Palmer, S. M., Gamberini, M., & Rosa, M. G. P.
Affiliations
  • Monash University (AU)
  • University of Bologna (IT)
Corresponding author
Burman, Kathleen J.
Venue
The Journal of Comparative Neurology
Publisher
Wiley
Published
2006-03-10
Volume
495
Issue
2
Pages
149-172
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W2169273107
Cited by
107
References
84
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2022: 3 · 2021: 7 · 2020: 5 · 2019: 6 · 2018: 11 · 2017: 5 · 2016: 6 · 2015: 4 · 2014: 10 · 2013: 3 · 2012: 1
FWCI
3.72
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
dorsolateral prefrontal cortex, marmoset monkey, Callithrix jacchus, cytoarchitecture, frontal eye field, dorsal stream, extrastriate visual areas, area 46, area 7, middle temporal area, primate visual cortex, corticocortical connections
MeSH terms
Amidines, Animals, Brain Mapping, Callithrix, Dextrans, Frontal Lobe, Rhodamines, Staining and Labeling, Visual Cortex, Visual Pathways

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