Results 101 to 110 of about 1,092,184 (348)

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Synaptic Plasticity Dynamics for Deep Continuous Local Learning (DECOLLE)

Frontiers in Neuroscience, 2018
A growing body of work underlines striking similarities between biological neural networks and recurrent, binary neural networks. A relatively smaller body of work, however, addresses the similarities between learning dynamics employed in deep artificial
Jacques Kaiser, Hesham Mostafa, Emre O. Neftci   +2 more
semanticscholar   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Reduced inhibitory synaptic transmission onto striatopallidal neurons may underlie aging-related motor skill deficits

Neurobiology of Disease
Human beings are living longer than ever before and aging is accompanied by an increased incidence of motor deficits, including those associated with the neurodegenerative conditions, Parkinson's disease (PD) and Huntington's disease (HD).
Qiang Shan, Xiaoxuan Yu, Xiaoli Lin, Yao Tian   +3 more
doaj   +1 more source

Ripples Make Waves: Binding Structured Activity and Plasticity in Hippocampal Networks

Neural Plasticity, 2011
Establishing novel episodic memories and stable spatial representations depends on an exquisitely choreographed, multistage process involving the online encoding and offline consolidation of sensory information, a process that is largely dependent on the
Josef H. L. P. Sadowski, Matthew W. Jones, Jack R. Mellor   +2 more
doaj   +1 more source

Synaptoimmunology - roles in health and disease

Molecular Brain, 2017
Mounting evidence suggests that the nervous and immune systems are intricately linked. Many proteins first identified in the immune system have since been detected at synapses, playing different roles in normal and pathological situations.
Robert Nisticò, Eric Salter, Celine Nicolas, Marco Feligioni, Dalila Mango, Zuner A. Bortolotto, Pierre Gressens, Graham L. Collingridge, Stephane Peineau   +8 more
doaj   +1 more source

Neuromodulation of hippocampal long-term synaptic plasticity

Current Opinion in Neurobiology, 2019
Highlights • Acetylcholine, noradrenaline, dopamine and serotonin all facilitate long-term synaptic plasticity.• Neuromodulators facilitate long-term synaptic plasticity by common and divergent mechanisms.• Common mechanisms include NMDA receptor ...
Jon Palacios-Filardo, J. Mellor
semanticscholar   +1 more source

Impairments in motor coordination without major changes in cerebellar plasticity in the Tc1 mouse model of Down syndrome [PDF]

, 2009
Down syndrome (DS) is a genetic disorder arising from the presence of a third copy of human chromosome 21 (Hsa21). Recently, O’Doherty et al. [An aneuploid mouse strain carrying human chromosome 21 with Down syndrome phenotypes. Science 309 (2005) 2033–
Bliss, T. V.P., Daniel, Herve, Fisher, E. M.C., Morice, Elise, Daniel, H., Bliss, T.V.P., Fisher, Elizabeth MC, Jani, H., Galante, Micaela, Vanes, Lesley, Bliss, Timothy VP, Galante, M., Morice, E., Vanes, L., Tybulewicz, V.L.J., Tybulewicz, V. L.J., Fisher, E.M.C., Jani, Harsha, Tybulewicz, Victor LJ   +18 more
core   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

Advanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang, Dong Hyun Lee, Conan Weiland, Won‐Il Lee, Kim Kisslinger, Mingzhao Liu, Aswin kumar Anbalagan, Xiao Tong, Soumyajit Mandal, Nikhil Tiwale, Houk Jang, Chang‐Yong Nam   +11 more
wiley   +1 more source