The Prefrontal Areas and Cerebral Hemispheres of the Neotropical Cebus Apella and Its Correlations with Cognitive Processes

Overview

Journal Dement Neuropsychol

Date 2017 Dec 8

PMID 29213684

Citations 2

Authors

Kellen Christina Malheiros Borges

Jussara Rocha Ferreira

Leonardo Ferreira Caixeta

Affiliations

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Abstract

Objectives: To provide evidence of correlations between anatomical particularities of the brain areas analyzed and some cognitive abilities previously described in these simians.

Methods: The relative size of the cerebral hemispheres and prefrontal areas (PFA) were measured using a Universal caliper, in 24 hemispheres of C. apella fixed with 10% formaldehyde and kept in 70% alcoholic solution.

Results: Data gathered allowed the calculation of the approximate volume (cm) of the areas under study: right antimere 35.2cm (±5.3), left antimere 31.3cm (±5.4) and of the left PFA 6.0cm (±1.5) and right PFA 6.9cm (±1.7).

Conclusions: We concluded that the PFA represents about 20% of the cerebral volume of this primate. No significant differences were found in the antimeres in terms of volume and area of the hemispheres and likewise for the PFA. These animals have a proportionally bigger brain than that of other neotropical primates in the literature. This allows us to infer that the frontal lobe of is also larger; possibly related to its maturity and developed cognitive functions indicative of the culture transfers characteristic of this species.

Citing Articles

Gross anatomy of the longitudinal fascicle of Sapajus sp.

Aversi-Ferreira T, Borges K, Goncalves-Mendes M, Caixeta L PLoS One. 2021; 16(6):e0252178.

PMID: 34166386 PMC: 8224874. DOI: 10.1371/journal.pone.0252178.

Anatomical Study of Intrahemispheric Association Fibers in the Brains of Capuchin Monkeys (Sapajus sp.).

Borges K, Nishijo H, Aversi-Ferreira T, Ferreira J, Caixeta L Biomed Res Int. 2015; 2015:648128.

PMID: 26693488 PMC: 4676999. DOI: 10.1155/2015/648128.

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