Results 251 to 260 of about 199,578 (301)
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CENTRAL CHOLINERGIC SYSTEMS AND COGNITION
Annual Review of Psychology, 1997▪ Abstract The organization and possible functions of basal forebrain and pontine cholinergic systems are reviewed. Whereas the basal forebrain cholinergic neuronal projections likely subserve a common electrophysiological function, e.g. to boost signal-to-noise ratios in cortical target areas, this function has different effects on psychological ...
B J, Everitt, T W, Robbins
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The cholinergic system in Down's syndrome
Journal of Intellectual Disabilities, 2006The cholinergic system is one of the most important modulatory neurotransmitter systems in the brain. Alterations of the transmission communicators are accompanied by reduction of the cortical activity, which is associated with a learning and memory deficit.
Vincenzo Fodale, Giovanni Grasso
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The cholinergic system, amnesia and memory
Physiology & Behavior, 1972Abstract Three experiments are reported which attempt to manipulate memory through the cholinergic system. All animals learned a single-trial passive avoidance response followed immediately by ECS or Sham ECS. In the first, prostigmine was used to rule out the possibility that effects could be due to peripheral response mechanisms.
D J, Lewis, N J, Bregman
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The cholinergic system and spatial learning
Behavioural Brain Research, 2011Acetlylcholine (ACh) in the central nervous system is critical for a multitude of functions. Here, we concentrate on declarative memory in humans, and its equivalent episodic-like memory in rodents and highlight current understanding of cholinergic system in these processes.
Serena, Deiana +2 more
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Cholinergic system and cell proliferation
Chemico-Biological Interactions, 2016The cholinergic system, comprising acetylcholine, the proteins responsible for acetylcholine synthesis and release, acetylcholine receptors and cholinesterases, is expressed by most human cell types. Acetylcholine is a neurotransmitter, but also a local signalling molecule which regulates basic cell functions, and cholinergic responses are involved in ...
F J, Campoy +5 more
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The cholinergic system in Alzheimer's disease
Progress in Neurobiology, 1997The past decade has witnessed an enormous increase in our knowledge of the variety and complexity of neuropathological and neurochemical changes in Alzheimer's disease. Although the disease is characterized by multiple deficits of neurotransmitters in the brain, this overview emphasizes the structural and neurochemical localization of the elements of ...
P, Kása, Z, Rakonczay, K, Gulya
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Cholinergic Systems and Multiple Cholinergic Receptors in Ocular Tissues
Journal of Ocular Pharmacology and Therapeutics, 1985Acetylcholine (ACh), choline acetyltransferases and cholinesterases occur in cornea, iris-ciliary body complex and retina of several vertebrates. In cornea, ACh may serve as a sensory transmitter as well as a local hormone, the function of which is not delineated.
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Human placental cholinergic system
Biochemical Pharmacology, 1997The occurrence of acetylcholine (ACh)-like activity in human placenta, a tissue without innervation, has been known for more than 60 years. However, the non-neuronal functions of ACh in human placenta are not clearly understood. The components of the cholinergic system-ACh, choline acetyltransferase, acetylcholinesterase, butyrylcholinesterase ...
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The cholinergic system in insect diapause
Journal of Insect Physiology, 1967Abstract The presumed role of the cholinergic system in the regulation of pupal diapause was investigated by studying the spontaneous electrical activity in the brain and ventral ganglia of diapausing and developing H. cecropia , the activity of the cholinergic enzymes and the levels of cholinergic substance in brains and ganglia of different ...
A, Mansingh, B N, Smallman
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The cholinergic system, EEG and sleep
Behavioural Brain Research, 2011Acetylcholine is a potent excitatory neurotransmitter, crucial for cognition and the control of alertness and arousal. Vigilance-specific recordings of the electroencephalogram (EEG) potently reflect thalamo-cortical and brainstem-cortical cholinergic activity that drives theta rhythms and task-specific cortical (de-synchronisation.
Bettina, Platt, Gernot, Riedel
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