Dorsolateral prefrontal cortex in the context of "Brodmann area 46"

Play Trivia Questions online!

 or

Skip to study material about Dorsolateral prefrontal cortex in the context of "Brodmann area 46"
Ad spacer

⭐ Core Definition: Dorsolateral prefrontal cortex

The dorsolateral prefrontal cortex (DLPFC or DL-PFC) is an area in the prefrontal cortex of the primate brain. It is one of the most recently derived parts of the human brain. It undergoes a prolonged period of maturation which lasts into adulthood. The DLPFC is not an anatomical structure, but rather a functional one. It lies in the middle frontal gyrus of humans (i.e., lateral part of Brodmann's area (BA) 9 and 46). In macaque monkeys, it is around the principal sulcus (i.e., in Brodmann's area 46). Other sources consider that DLPFC is attributed anatomically to BA 9 and 46 and BA 8, 9 and 10.

The DLPFC has connections with the orbitofrontal cortex, as well as the thalamus, parts of the basal ganglia (specifically, the dorsal caudate nucleus), the hippocampus, and primary and secondary association areas of neocortex (including posterior temporal, parietal, and occipital areas). The DLPFC is also the end point for the dorsal pathway (stream), which is concerned with how to interact with stimuli.

↓ Menu

>>>PUT SHARE BUTTONS HERE<<<

👉 Dorsolateral prefrontal cortex in the context of Brodmann area 46

Brodmann area 46, or BA46, is part of the frontal cortex in the human brain. It is between BA10 and BA45.

BA46 is known as middle frontal area 46. In the human brain it occupies approximately the middle third of the middle frontal gyrus and the middle portion of the inferior frontal gyrus. Brodmann area 46 roughly corresponds with the dorsolateral prefrontal cortex (DLPFC), although the borders of area 46 are based on cytoarchitecture rather than function. The DLPFC also encompasses part of granular frontal area 9, directly adjacent on the dorsal surface of the cortex.

↓ Explore More Topics
In this Dossier

Dorsolateral prefrontal cortex in the context of Frontal lobe

The frontal lobe is the largest lobe of the vertebrate brain and the most anterior lobe of the cerebral hemispheres. The anatomical groove known as the central sulcus separates the frontal lobe from the parietal lobe, and the deeper anatomical groove called the lateral sulcus separates the frontal lobe from the temporal lobe. The most anterior ventral, orbital end of the frontal lobe is known as the frontal pole, which is one of the three so-called poles of the cerebrum.

The outer, multifurrowed surface of the frontal lobe is called the frontal cortex. Like all cortical tissue, the frontal cortex is a thin layer of gray matter making up the outer portion of the brain. The frontal cortex is further subdivided into several anatomical and functional structures, including those of the motor cortex (the premotor cortex, the nonprimary motor cortex, the primary motor cortex) and the prefrontal cortex (e.g., the dorsolateral prefrontal cortex).

↑ Return to Menu

Dorsolateral prefrontal cortex in the context of Brodmann area 9

Brodmann area 9, or BA9, refers to a cytoarchitecturally defined portion of the frontal cortex in the brain of humans and other primates. Its cytoarchitecture is referred to as granular due to the concentration of granule cells in layer IV. It contributes to the dorsolateral and medial prefrontal cortex.

↑ Return to Menu
LINKED FROM (PARENTS)
← Frontal lobe ← Brodmann area 9 ← Brodmann area 46 ← Frontal lobes
LINKS TO (CHILDREN)
Prefrontal cortex → Primate → Brodmann area 9 → Brodmann area 46 → Brodmann area 8 → Brodmann area 10 → Orbitofrontal cortex → Thalamus → Basal ganglia → Caudate nucleus → Hippocampus → Neocortex → Two-streams hypothesis →