For citation purposes: Mavridis IN, Anagnostopoulou S. Cortical connections of the human nucleus accumbens: measurements and correlations. OA Anatomy 2013 Feb 25;1(1):7.

Original research study

 
Gross Anatomy

Cortical connections of the human nucleus accumbens: measurements and correlations

IN Mavridis, S Anagnostopoulou
 

Authors affiliations

(1) Department of Anatomy, University of Athens School of Medicine, Athens, Greece

* Corresponding author Email: pap-van@otenet.gr

Abstract

Introduction

The main purpose of our study was to measure the cortical thickness of the cortical connections of the human nucleus accumbens in order to explore potential morphometric correlations. Furthermore, we tested the hypothesis of a morphometric correlation between the nucleus accumbens and the cingulate gyrus.

Materials and methods

The material consisted of 41 cerebral hemispheres (25 left and 16 right) from 25 normal human brains. They were obtained from 22 males who were 50–90 years old, and from three females who were 67–94 years old. We measured the thickness of four cortical areas connected to the nucleus accumbens: the cingulate, entorhinal, orbitofrontal and piriform cortices, as well as the height of the subgenual part of the cingulate gyrus.

Results

We found a very statistically significant correlation between the orbitofrontal and entorhinal cortices, significant correlation between the cingulate and orbitofrontal cortices, significant correlation between the piriform and orbitofrontal cortices and significant correlation between the piriform and entorhinal cortices.

Conclusion

Our study indicated that the cingulate cortex is probably the thickest cortical area connected to the nucleus accumbens. It also suggested a potentially more significant relation between the orbitofrontal cortex and the limbic system than what is currently believed. Furthermore, we provided evidence that the size of the nucleus accumbens is neither correlated with the thickness of its cortical connections nor with the size of the cingulate gyrus.

Licensee OA Publishing London 2013. Creative Commons Attribution License (CC-BY)
Keywords