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Therefore, the set of anatomical structures considered part of the limbic system is controversial. The following structures are, or have been considered, part of the limbic system: [10] [11] Cortical areas: Limbic lobe; Orbitofrontal cortex: a region in the frontal lobe involved in the process of decision-making
MacLean first introduced the term "limbic system" to refer to this set of interconnected brain structures in a paper in 1952. MacLean's recognition of the limbic system as a major functional system in the brain was widely accepted among neuroscientists, and is generally regarded as his most important contribution to the field.
It is an integral part of the limbic system, which is involved with emotion formation and processing, [1] learning, [2] and memory. [ 3 ] [ 4 ] The combination of these three functions makes the cingulate gyrus highly influential in linking motivational outcomes to behavior (e.g. a certain action induced a positive emotional response, which ...
Cornu ammonis area 4 (CA4) Amygdala (limbic system) (limbic lobe) Central nucleus (autonomic nervous system) Medial nucleus (accessory olfactory system) Cortical and basomedial nuclei (main olfactory system) Lateral and basolateral nuclei (frontotemporal cortical system) Extended amygdala. Stria terminalis. Bed nucleus of the stria terminalis ...
It is considered part of the limbic system. [2] In primates, it is located medially within the temporal lobes. [3] It consists of many nuclei, each made up of further subnuclei. The subdivision most commonly made is into the basolateral, central, cortical, and medial nuclei together with the intercalated cell clusters. [4]
The limbic lobe is an arc-shaped cortical region of the limbic system, on the medial surface of each cerebral hemisphere of the mammalian brain, consisting of parts of the frontal, parietal and temporal lobes.
Fornix as one of the limbic structures. Scheme of rhinencephalon. The fibers begin in the hippocampus on each side of the brain as fimbriae; the separate left and right sides are each called the crus of the fornix (plural crura). The bundles of fibers come together in the midline of the brain, forming the body of the fornix.
It is cytoarchitecturally defined: it has three layers, where layers 2, 3 and 4 are merged, and is intermediate in form between the allocortex (less than six layers) and the neocortex (six distinct layers). It is found within the limbic system, representing the border between neocortical and allocortical parts.