Claustrum

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Brain: Claustrum
Horizontal section of right cerebral hemisphere.
Coronal section of brain immediately in front of pons.
Gray's	subject #189 836
NeuroNames	hier-234
MeSH	Claustrum

The claustrum is a thin layer of grey matter lying between the extreme capsule and external capsule in the brain. Its function is not completely known, although it has reciprocal connections with the cerebral cortex.

Francis Crick, a neuroscientist keen on studying the neural correlate of consciousness, pointed to the claustrum as one of the most probable key components of consciousness in his last works [1].

[edit] Additional images

Coronal section of brain immediately in front of pons.

Coronal section of brain through intermediate mass of third ventricle.

Section of brain showing upper surface of temporal lobe.

Coronal section of brain through anterior commissure.

[edit] References

• Francis C. Crick and Christof Koch (2005), "What is the function of the claustrum?," Phil. Trans. R. Soc. Lond. B. Biol. Sci., volume 360, number 1458, pp. 1271-1279, DOI: 10.1098/rstb.2005.1661.

[edit] External links

• BrainMaps at UCDavis Claustrum
• Dictionary at eMedicine Claustrum

v • d • e Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres)
primary sulci/fissures	medial longitudinal, lateral, central, parietoöccipital, calcarine, cingulate
frontal lobe	precentral gyrus (primary motor cortex, 4), precentral sulcus, superior frontal gyrus (6, 8), middle frontal gyrus (46), inferior frontal gyrus (Broca's area, 44-pars opercularis, 45-pars triangularis), prefrontal cortex (orbitofrontal cortex, 9, 10, 11, 12, 47)
parietal lobe	postcentral sulcus, postcentral gyrus (1, 2, 3, 43), superior parietal lobule (5), inferior parietal lobule (39-angular gyrus, 40), precuneus (7), intraparietal sulcus
occipital lobe	primary visual cortex (17), cuneus, lingual gyrus, 18, 19 (18 and 19 span whole lobe)
temporal lobe	transverse temporal gyrus (41-42-primary auditory cortex), superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37)
limbic lobe/fornicate gyrus	cingulate cortex/cingulate gyrus, anterior cingulate (24, 32, 33), posterior cingulate (23, 31), isthmus (26, 29, 30), parahippocampal gyrus (piriform cortex, 25, 27, 35), entorhinal cortex (28, 34)
subcortical/insular cortex	rhinencephalon, olfactory bulb, olfactory tract, corpus callosum (splenium, genu, rostrum), lateral ventricles, septum pellucidum, ependyma, internal capsule, corona radiata, external capsule, fornix (commissure of fornix), anterior commissure, posterior commissure
hippocampal formation	dentate gyrus, hippocampus, subiculum
basal ganglia	striatum (caudate nucleus, putamen), lentiform nucleus (putamen, globus pallidus), claustrum, extreme capsule, amygdala, nucleus accumbens
Some categorizations are approximations, and some Brodmann areas span gyri.