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Connections of the nucleus incertus
Journal of Comparative Neurology, 2001AbstractThe nucleus incertus (NI) is a distinct cell group in caudoventral regions of the pontine periventricular gray, adjacent to the ventromedial border of the caudal dorsal tegmental nucleus. Recent interest in the NI stems from evidence that it represents one of the periventricular sites with the highest expression levels of mRNA encoding the type
Larry W. Swanson, Newton Sabino Canteras
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Selective lesioning of nucleus incertus with corticotropin releasing factor-saporin conjugate
Brain Research, 2014 The nucleus incertus (NI), a brainstem nucleus found in the pontine periventricular grey, is the primary source of the neuropeptide relaxin-3 in the mammalian brain. The NI neurons have also been previously reported to express several receptors and neurotransmitters, including corticotropin releasing hormone receptor 1 (CRF₁) and gamma-aminobutyric ...
Gavin S. Dawe, Ramamoorthy Rajkumar
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Nucleus incertus inactivation impairs spatial learning and memory in rats
Physiology and Behavior, 2015Nucleus incertus (NI) is a pontine nucleus which releases mainly GABA and relaxin-3 in rats. Its suggested functions include response to stress, arousal, and modulation of hippocampal theta rhythm. Since the role of NI in learning and memory has not been well characterized, therefore the involvement of this nucleus in spatial learning and memory and ...
Sara Nikseresht +2 more
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Electrolytic lesion of the nucleus incertus retards extinction of auditory conditioned fear
Behavioural Brain Research, 2013Fear memory circuits in the brain function to allow animals and humans to recognize putative sources of danger and adopt an appropriate behavioral response; and research on animal models of fear have helped reveal the anatomical and neurochemical nature of these circuits.
Ana María Sánchez-Pérez +2 more
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Nucleus incertus promotes cortical desynchronization and behavioral arousal
Brain Structure and Function, 2016Arousal and vigilance are essential for survival and relevant regulatory neural circuits lie within the brainstem, hypothalamus and forebrain. The nucleus incertus (NI) is a distinct site within the pontine periventricular gray, containing a substantial population of GABAergic neurons with long-range, ascending projections.
Ross Bathgate +2 more
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The Human Brain Nucleus Incertus: A New Target in Dementia?
Alzheimer's & Dementia, 2023AbstractBackgroundThe brainstem nucleus incertus (NI) or ‘uncertain nucleus’, was originally described by Streeter in 1903 as a midline region in the floor of the fourth ventricle of the human brain with an ‘unknown’ function. A century later, the NI has been shown to play a key role in memory formation in rodents, through direct and indirect ...
Camila de Avila +10 more
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Cytoarchitecture and efferent projections of the nucleus incertus of the rat
Journal of Comparative Neurology, 2003AbstractThe nucleus incertus is located caudal to the dorsal raphe and medial to the dorsal tegmentum. It is composed of a pars compacta and a pars dissipata and contains acetylcholinesterase, glutamic acid decarboxylase, and cholecystokinin‐positive somata.
Francisco E, Olucha-Bordonau +5 more
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Anatomical evidence for a ponto-septal pathway via the nucleus incertus in the rat
Brain Research, 2008 This document is the postprint version of the following article published in Brain Research:Teruel-Martí, V., Cervera-Ferri, A., Nuñez, Á., Amador Valverde-Navarro, A., Eliseo Olucha-Bordonau, F., & Ruiz-Torner, A. (2008). Anatomical evidence for a ponto-septal pathway via the nucleus incertus in the rat. Brain Research, 1218, 87–96. https://doi.org/10.
Vicent Teruel-Martí +2 more
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Properties of Nucleus Incertus Neurons of the Cat Projecting to the Cerebellar Flocculus
Annals of the New York Academy of Sciences, 1996info:eu-repo/semantics ...
Chéron, Guy +3 more
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Brain Research Bulletin, 2016 The nucleus incertus (NI) is a small cluster of brainstem neurons presumed to play a role in stress responses. We show that swim stress (normal water: 30 min and cold water: 20 min) and elevation stress robustly induced c-Fos expression in the NI and significantly suppressed long-term potentiation (LTP) in the hippocampo-medial prefrontal cortical (HP ...
Gavin S. Dawe +2 more
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