Jens Hannibal, J. Fahrenkrug

Neuronal Input Pathways to the Brain's Biological Clock and their Functional Significance (eBook, PDF)

• Format: PDF

Produktbeschreibung

Circadian rhythms are entrained daily by environmental photic and non-photic cues. The present review describes the anatomy and functional characteristics of the three major input pathways to the circadian clock mediating entrainment, the retino-hypothalamic tract (RHT), the geniculo-hypothalamic tract (GHT) and the midbrain raphe projection.

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Produktdetails

• Verlag: Springer Berlin Heidelberg
• Seitenzahl: 76
• Erscheinungstermin: 7. Juni 2006
• Englisch
• ISBN-13: 9783540277897
• Artikelnr.: 37367492

Autorenporträt

Jens Hannibal, Copenhagen Hospital Corporation, Denmark / J. Fahrenkrug, Copenhagen Hospital Corporation, Denmark

Inhaltsangabe

Introduction.- The suprachiasmatic nucleus (SCN).- The endogenous rhythm of the SCN.- The SCN molecular clock.- Photic regulation of the circadian rhythm.- Retinal input - Neuroanatomy.- Neurotransmitters in the RHT.- Glutamate and PACAP.- Other neurotransmitters of the RHT.- RHT neurotransmitter receptors in the SCN.-Melanopsin - an irradiance detecting photopigment of the RHT.- Retinal input - Physiology.- Non-photic regulation of the circadian rhythms.- Midbrain raphe input - Neuroanatomy.- 5-HT and regulation of the circadian system.- The intergeniculate leaflet and the geniculohypothalamic tract - neuroanatomy.- Effects of NPY on circadian rhythm during subjective day.- NPY modulates light-induced phase shift during subjective night.- Summary.