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Abstract #3071

Brain Activity in Ateles geoffroyi: Resting-state fMRI of working memory in medial prefrontal cortex.

Diana Platas 1,2 , Benito de Celis Alonso 3 , Silvia Hidalgo Tobn 4,5 , Fernando Chico 4 , Jairo Muoz-Delgado 6 , and Kimberley Phillips 2

1 Universidad Nacional Autnoma de Mxico, Mexico DF, Mexico DF, Mexico, 2 Trinity University, Texas, United States, 3 Faculty of Physics and Mathematics, BUAP, Puebla, Mexico, 4 Hospital Infantil de Mexico, Federico Gmez, Mexico DF, Mexico, 5 Universidad Autnoma Metropolitana, Campus Iztapalpa, Mexico DF, Mexico, 6 Instituto Nacional de Psiquiatra Ramn de la Fuente Muiz, Mexico DF, Mexico

Resting state functional images (RsfMRI) measured in absence of a task, aim at detecting low frequency fluctuations (LFFs, less than 0.1 Hz) in the Blood Oxygen Level Dependent (BOLD) signals [1]. Functional connectivity is defined for these studies as the temporal correlations between different brain regions [2,3]. Functional communication between brain regions plays a fundamental role in cognitive processes. Here we have used resting-state areas of the brain to examine intrinsic connectivity networks in a seldom-used primate species, the spider monkey (Ateles geoffroyi). Human working memory has been intensively studied but little is known about its evolution. Comparison of connectivity maps in spider monkeys is an initial stage to approach working memory evolution in primates, and thus closes the gap between RsfMRI and cognitive data.

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