Results 61 to 70 of about 46,881 (221)
Odors in olfactory bulb are defined by a short discrete temporal sequence: recognition by brute-force conversion to a spatial pattern (chunking) [PDF]
arXiv, 2014 Mitral cells, the principal neurons in the olfactory bulb, respond to odorants by firing bursts of action potentials called sharp events. A given cell produces a sharp event at a fixed phase during the sniff cycle in response to a given odor; different cells have different phases.
arxiv
A Theoretical Framework for Analyzing Coupled Neuronal Networks: Application to the Olfactory System [PDF]
, 2017 Determining how synaptic coupling within and between regions is modulated during sensory processing is an important topic in neuroscience. Electrophysiological recordings provide detailed information about neural spiking but have traditionally been confined to a particular region or layer of cortex.
arxiv +1 more source
Glia, EarlyView.Brain oligodendrocytes have lower rates of cholesterol synthesis and higher rates of lipoprotein uptake than spinal cord oligodendrocytes. Myelin lipid content is higher in CNS regions with larger average axon diameter. Brain and spinal cord myelin cholesterol content is innately different, while myelin fatty acid content can be modulated by fiber ...
Marie L. Mather +4 more
wiley +1 more source
Neurons and circuits for odor processing in the piriform cortex [PDF]
, 2013 Increased understanding of the early stages of olfaction has lead to a renewed interest in the higher brain regions responsible for forming unified ‘odor images’ from the chemical components detected by the nose.
Bekkers, John MacDonald +1 more
core +1 more source
Computational Capacity of an Odorant Discriminator: the Linear Separability of Curves [PDF]
arXiv, 2000 We introduce and study an artificial neural network, inspired by the probabilistic Receptor Affinity Distribution model of olfaction. Our system consists on N sensory neurons whose outputs converge on a single processing linear threshold element. The system's aim is to model discrimination of a single target odorant from a large number p of background ...
arxiv
Emergence of Connectivity Motifs in Networks of Model Neurons with Short- and Long-term Plastic Synapses [PDF]
, 2013 Recent evidence in rodent cerebral cortex and olfactory bulb suggests that short-term dynamics of excitatory synaptic transmission is correlated to stereotypical connectivity motifs. It was observed that neurons with short-term facilitating synapses form predominantly reciprocal pairwise connections, while neurons with short-term depressing synapses ...
arxiv +1 more source
Head &Neck, EarlyView.ABSTRACT Introduction The past two decades have seen a paradigm shift in the surgical treatment of sinonasal malignancies, moving from traditional open approaches to minimally invasive endoscopic techniques. Technological advancements have enabled the use of the endoscopic endonasal transcribriform approach (EETA) for tumors involving the anterior ...
Michel Khalaf +11 more
wiley +1 more source
Progress of non‐motor symptoms in early‐onset Parkinson's disease
Ibrain, EarlyView.This study reviews the research progress related to non‐motor symptoms (NMS) in patients with early onset Parkinson's disease (EOPD), including neuropsychiatric symptoms, autonomic dysfunction, sleep disorders, and sensory disorders and also summarizes the characteristics of NMS in the genetic form of Parkinson's disease (PD).
Fanshi Zhang +5 more
wiley +1 more source
Navigating the treatment landscape of Alzheimer's disease: Current strategies and future directions
Ibrain, EarlyView.Alzheimer's disease treatment is evolving rapidly, with emerging strategies targeting multiple disease pathways. This graphical abstract highlights the shift from traditional therapies to innovative approaches that hold promise for improving outcomes.
Tapas Kumar Mohapatra +4 more
wiley +1 more source
Modeling the Olfactory Bulb - Coupled Nonlinear Oscillators [PDF]
, 1989 The olfactory bulb of mammals aids in the discrimination of odors. A mathematical model based on the bulbar anatomy and electrophysiology is described.
Hopfield, J. J., Li, Zhaoping
core