• Neuroscience · Aug 2021

    Review

    The Role of the Posterior Hypothalamus in the Modulation and Production of Rhythmic Theta Oscillations.

    • Tomasz Kowalczyk, Agata Staszelis, Paulina Kaźmierska-Grębowska, Krzysztof Tokarski, and Bartosz Caban.
    • Department of Neurobiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
    • Neuroscience. 2021 Aug 21; 470: 100-115.

    AbstractTheta rhythm recorded as an extracellular synchronous field potential is generated in a number of brain sites including the hippocampus. The physiological occurrence of hippocampal theta rhythm is associated with the activation of a number of structures forming the ascending brainstem-hippocampal synchronizing pathway. Experimental evidence indicates that the supramammillary nucleus and posterior hypothalamic nuclei, considered as the posterior hypothalamic area, comprise a critical node of this ascending pathway. The posterior hypothalamic area plays an important role in movement control, place-learning, memory processing, emotion and arousal. In the light of multiplicity of functions of the posterior hypothalamic area and the influence of theta field oscillations on a number of neural processes, it is the authors' intent to summarize the data concerning the involvement of the supramammillary nucleus and posterior hypothalamic nuclei in the modulation of limbic theta rhythmicity as well as the ability of these brain structures to independently generate theta rhythmicity.Copyright © 2021 IBRO. Published by Elsevier Ltd. All rights reserved.

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