نتایج جستجو برای: generalized neuron

تعداد نتایج: 229788  

2008
Hideo Hasegawa

There has been a long-standing controversy whether information in neuronal networks is carried by the firing rate code or by the firing temporal code. The current status of the rivalry between the two codes is briefly reviewed with the recent studies such as the brain-machine interface (BMI). Then we have proposed a generalized rate model based on the finite N-unit Langevin model subjected to a...

2005
Jason A. Pamplin Ying Zhu Paul S. Katz Rajshekhar Sunderraman

Invertebrate nervous systems serve as important models for neuroscience research because they are comprised of relatively small numbers of individually identified neurons. There is no universal means of documenting locations of individual neurons that allows variability between specimens and can be generalized to different species. We present a new technique for visualizing and documenting neur...

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1999
H E Plesser T Geisel

We model the dynamics of the leaky integrate-and-fire neuron under periodic stimulation as a Markov process with respect to the stimulus phase. This avoids the unrealistic assumption of a stimulus reset after each spike made in earlier papers and thus solves the long-standing reset problem. The neuron exhibits stochastic resonance, both with respect to input noise intensity and stimulus frequen...

2007
Liam Paninski

3 The “Fokker-Planck” equation is a partial differential equation that controls the evolution of the forward (and backward) probabilities 9 3.1 Deriving the “free” Fokker-Planck equation (no spike observations) . . . . . . 10 3.1.1 Conductance-based model . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.1.2 Computing mean firing rates in a network of GLM neurons . . . . . . 13 3.2 Incorpo...

Journal: :International Journal of Dynamics and Control 2023

Abstract This article considers a fractional-order neuron model under an electromagnetic field in terms of generalized Caputo fractional derivatives. The motivation for incorporating derivatives the previously proposed integer-order is that impresses with efficient effects memory, and parameters orders can increase performance by amplifying degree freedom. results on uniqueness solution are est...

Journal: :Electronics 2023

Spiking neural networks (SNNs) are considered a crucial research direction to address the “storage wall” and “power challenges faced by traditional artificial intelligence computing. However, developing SNN chips based on CMOS (complementary metal oxide semiconductor) circuits remains challenge. Although memristor process technology is best alternative synapses, it still undergoing refinement. ...

1987
Les E. Atlas Toshiteru Homma Robert J. Marks

An artificial neural network is developed to recognize spatio-temporal bipolar patterns associatively. The function of a formal neuron is generalized by replacing multiplication with convolution, weights with transfer functions, and thresholding with nonlinear transform following adaptation. The Hebbian learning rule and the delta learning rule are generalized accordingly, resulting in the lear...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

منتول (menthol) از جمله ترپن هایی است که به عنوان یک ترکیب آلی اصلی در بسیاری از اسانس های روغنی معطر از جمله نعناع وجود دارد. معروفترین اثر منتول، ایجاد حس سرما بواسطه ی فعالسازی کانال های trpm8 می باشد با اینحال این ترکیب در تعدیل عملکرد برخی از کانال های یونی و رسپتورها نیز نقش دارد. در تحقیق حاضر اثرات منتول بر الگوی فعالیت نورون های حلزون بررسی شد. ثبت داخل سلولی به روش تثبیت جریان تک الکت...

1997
Alessandro Sperduti Antonina Starita

Until now neural networks have been used for classifying unstructured patterns and sequences. However, standard neural networks and statistical methods are usually believed to be inadequate when dealing with complex structures because of their feature-based approach. In fact, feature-based approaches usually fail to give satisfactory solutions because of the sensitivity of the approach to the a...

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