scholarly journals Functional Response Properties of Neurons in the Dorsomedial Visual Area of New World Monkeys (Callithrix jacchus)

2005 ◽  
Vol 16 (2) ◽  
pp. 162-177 ◽  
Author(s):  
Leo L. Lui ◽  
James A. Bourne ◽  
Marcello G.P. Rosa
Keyword(s):  
Functional Response ◽  
New World ◽  
Callithrix Jacchus ◽  
Visual Area ◽  
New World Monkeys ◽  
Response Properties

Dose-dependent TCDD-induced increase or decrease in T-lymphocyte subsets in the blood of New World monkeys (Callithrix jacchus)

Chemosphere ◽  
1992 ◽  
Vol 25 (7-10) ◽  
pp. 1201-1206 ◽  
Author(s):  
Reinhard Neubert ◽  
Georg Golor ◽  
Ralf Stahlmann ◽  
Hans Helge ◽  
Diether Neubert
Keyword(s):  
T Lymphocyte ◽  
New World ◽  
Lymphocyte Subsets ◽  
Callithrix Jacchus ◽  
New World Monkeys ◽  
T Lymphocyte Subsets ◽  
Dose Dependent

scholarly journals Correction: Tissue expression of antigens of ABH blood groups in species of New World Monkeys (Aotus infulatus, Callithrix jacchus, Sapajus apella and Saimiri sciureus)

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0259504
Author(s):  
Délia Cristina Figueira Aguiar ◽  
Washington Luiz Assunção Pereira ◽  
Gyselly de Cássia Bastos de Matos ◽  
Klena Sarges Marruaz da Silva ◽  
Rosane do Socorro Pompeu de Loiola ◽  
...  
Keyword(s):  
New World ◽  
Tissue Expression ◽  
Callithrix Jacchus ◽  
Blood Groups ◽  
Saimiri Sciureus ◽  
New World Monkeys ◽  
Sapajus Apella ◽  
Abh Blood Groups

Ocular dominance columns in the adult New World Monkey Callithrix jacchus

2001 ◽  
Vol 18 (3) ◽  
pp. 407-412 ◽  
Author(s):  
CATHERINE CHAPPERT-PIQUEMAL ◽  
CAROLINE FONTA ◽  
FRANÇOIS MALECAZE ◽  
MICHEL IMBERT
Keyword(s):  
Visual Cortex ◽  
Primary Visual Cortex ◽  
New World ◽  
Striate Cortex ◽  
Ocular Dominance ◽  
Callithrix Jacchus ◽  
New World Monkeys ◽  
Ocular Dominance Columns ◽  
New Findings ◽  
Calcarine Cortex

In the marmoset Callithrix jacchus, ocular dominance columns (ODC) have been reported to be present in young animals, but absent in adults (Spatz, 1989). We have studied in juvenile and adult animals the postnatal organization of the retino-geniculo-cortical afferents by means of transneuronal labeling. We show in the present work that ODC are present in the primary visual cortex of Callithrix jacchus, both in the adult and in the juvenile animal. The present work confirms the presence of ODC in the visual cortex of juvenile marmoset before the end of the first postnatal month. In 2-month-old animals, ODC are well demarcated in IVcα and IVcβ. In the adult marmosets, the present data clearly show that the primary visual cortex is also organized with ODC. In horizontal sections, they form a mosaic through the ventral and dorsal calcarine cortex and through the dorso-lateral occipital part of the striate cortex. In frontal sections, their presence is manifest in IVcβ within the calcarine cortex and they only faintly appear in IVcα. These new findings are important since they underline the usefulness of the adult New World Monkeys as a model in visual research.

Functional architecture of area 17 in normal and monocularly deprived marmosets (Callithrix jacchus)

1996 ◽  
Vol 13 (1) ◽  
pp. 145-160 ◽  
Author(s):  
Frank Sengpiel ◽  
David Troilo ◽  
Peter C. Kind ◽  
Bryan Graham ◽  
Colin Blakemore
Keyword(s):  
New World ◽  
Ocular Dominance ◽  
Visual Space ◽  
Common Marmoset ◽  
Callithrix Jacchus ◽  
Monocular Deprivation ◽  
Normal Adult ◽  
New World Monkeys ◽  
Old World ◽  
Layer 4

AbstractThe organization of the primary visual cortex (VI) of the common marmoset (Callithrix jacchus) was studied both physiologically and by means of transneuronal labelling of geniculocortical afferents. We addressed the question whether monocular deprivation (MD) could stabilize segregation into ocular dominance (OD) columns, which are not seen in normal adult marmosets but are present in juvenile animals (Spatz, 1979, 1989). Properties of neurons in normal marmosets closely resembled those of other New-World and Old-World monkeys and orderly tangential progressions of preferred orientation were observed. However, in contrast to species that display well-defined OD columns, neurons of layer 4 in VI of normal adult marmosets received balanced inputs from the two eyes. Early MD (even though followed by prolonged binocular experience into adulthood) resulted in a reduction of cell size in laminae of the lateral geniculate nucleus with input from the deprived eye and a dramatic overall shift in ocular dominance towards the non-deprived eye in the cortex. However, isolated clusters of cells dominated by the deprived eye were found in both layers 4 and 6. Injection of lectin-conjugated horseradish peroxidase (WGA-HRP) into the deprived eye revealed elongated patches of terminal label, about 350 μm wide, in flat-mounted sections through layer 4. Afferent segregation was sharper and more regular in the region of VI representing parafoveal visual space than in that representing the fovea. Our findings support the notion that all Old-World and New-World monkeys possess the capacity for segregation of geniculocortical afferents into OD columns.

Sign in / Sign up

Export Citation Format

Share Document