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The claustrum (Cl) is a subcortical structure located in the basolateral telencephalon of the mammalian brain. It has been a subject of inquiry since the mid-nineteenth century. The Cl can be identified in a number of species, and appears as a phylogenetically related nucleus in Insectivores, Prosimians and Marsupials. Ontogenetic investigations have been(More)
This paper present a new hypothesis as to the function of the claustrum. Our basic premise is that the claustrum functions as a detector and integrator of synchrony in the axonal trains in its afferent inputs. In the first place an unexpected stimulus sets up a processed signal to the sensory cortex that initiates a focus of synchronized gamma oscillations(More)
The presence of the calcium-binding protein (CaBP) parvalbumin (PV) in the neuronal elements of the cat's dorsal claustrum was studied by immunohistochemistry at the light- and electron-microscopic level. PV-immunoreactive neurons and fibers were detected in all parts of the claustrum. The PV-immunoreactive neurons were divided into several subtypes(More)
The claustrum is a relatively large telencephalic structure, situated close to the border of the neo- and allocortical regions. Its neuronal population consists of glutamatergic, projecting neurons and GABA-ergic interneurons, characterized by occurrence of numerous additional biochemical markers. The postnatal development of these latter neurons has not(More)
THE FACTS Telocytes (TCs) form a remarkable new cell species found in many types of tissue. They were discovered by Professor Laurentiu-Mircea Popescu of Roumania in 2005 (Popescu et al., 2005), and are characterized by having very small cell bodies (consisting of a nucleus and a small amount of cytoplasm) and " extremely long and thin " tubular processes(More)
This paper presents a review of recent work on the role that two epigenetic-related systems may play in information processing mechanisms in the brain. The first consists of exosomes that transport epigenetic-related molecules between neurons. The second consists of homeoproteins like Otx2 that carry information from sense organs to primary sensory cortex.(More)