Posterior Cingulate Cortex
A Posterior Cingulate Cortex is a brain component within a cingulate cortex that ...
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- See: Default Mode Network, Cingulate Gyrus, Limbic Lobe, Retrosplenial Cortex, Precuneus, Cytoarchitectonics, Brodmann Area, Brodmann Area 23, Brodmann Area 31.
References
2017
- (Wikipedia, 2017) ⇒ https://en.wikipedia.org/wiki/Posterior_cingulate Retrieved:2017-5-4.
- The posterior cingulate cortex (PCC) is the backmost part of the cingulate cortex, lying behind the anterior cingulate cortex.
This is the upper part of the “limbic lobe”. The cingulate cortex is made up of an area around the midline of the brain. Surrounding areas include the retrosplenial cortex and the precuneus.
Cytoarchitectonically the posterior cingulate cortex is associated with Brodmann areas 23 and 31.
The posterior cingulate cortex forms a central node in the default mode network of the brain. It has been shown to communicate with various brain networks simultaneously and is involved in various functions. Along with the precuneus, the posterior cingulate cortex has been implicated as a neural substrate for human awareness in numerous studies of both the anesthesized and vegetative (coma) state. Imaging studies indicate a prominent role for the posterior cingulate cortex in pain and episodic memory retrieval. Increased size of posterior ventral cingulate cortex is related to declines in working memory performance. The posterior cingulate cortex has been strongly implicated as a key part of several intrinsic control networks.
- The posterior cingulate cortex (PCC) is the backmost part of the cingulate cortex, lying behind the anterior cingulate cortex.
2017
- (Wikipedia, 2017) ⇒ https://en.wikipedia.org/wiki/cingulate_cortex#Posterior_cingulate_cortex Retrieved:2017-5-4.
- This corresponds to areas 23 and 31 of Brodmann LP of von Economo and Bailey and von Bonin. Its cellular structure is granular. It is followed posteriorly by the retrosplenial cortex (area 29).Dorsally is the granular area 31. The posterior cingulate cortex receives a great part of its afferent axons from the superficial nucleus (or nucleus superior- falsely LD-) of the thalamus (see thalamus), which itself receives axons from the subiculum. To some extent it thus duplicates Papez' circuit. It receives also direct afferents from the subiculum of the hippocampus. Posterior cingulate cortex hypometabolism (with 18F-FDG PET) has been defined in Alzheimer's disease.