Synonyms
Anterior cingulate system
Definition
The mesial frontal system originates in Brodmann’s area 24 and projects to the limbic striatum (i.e., ventromedial caudate, ventral putamen, nucleus accumbens, and olfactory tubercle). The ventral striatum also receives limbic input from the hippocampus, amygdala, and entorhinal cortices. Projections leaving these areas innervate the rostromedial globus pallidus interna, ventral pallidum, and rostrodorsal substantia nigra pars reticulata. From here, the pathway continues to the medial dorsal thalamic nucleus and then back to anterior cingulate cortex. Proximal and distal branches of the anterior cerebral artery and proximal branches of the posterior cerebral artery supply this system.
Current Knowledge
The mesial frontal system plays a role in motivated behavior and speech and motor initiation. Damage to any part of this system may result in a mesial frontal syndrome, which is characterized by reduced spontaneous activity that can range...
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References and Readings
Alexander, G. E., DeLong, M. R., & Strick, P. L. (1986). Parallel organization of functionally segregated circuits linking basal ganglia and cortex. Annual Review of Neuroscience, 9, 357–381.
Miller, B. L., & Cummings, J. L. (Eds.). (1999). The human frontal lobes: Functions and disorders. New York: Guilford Press.
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Krch, D. (2018). Mesial Frontal System. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-57111-9_1901
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DOI: https://doi.org/10.1007/978-3-319-57111-9_1901
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-57111-9
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