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检索条件"主题词=neural coding"
550 条 记 录,以下是441-450 订阅
Optimal quantization and suprathreshold stochastic resonance
Optimal quantization and suprathreshold stochastic resonance
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Conference on Fluctuations and Noise in Biological, Biophysical, and Biomedical Systems III
作者: McDonnell, MD Stocks, NG Pearce, CEM Abbott, D Univ Adelaide Ctr Biomed Engn Adelaide SA 5005 Australia
It is shown that Suprathreshold Stochastic Resonance (SSR) is effectively a way of using noise to perform quantization or lossy signal compression with a population of identical threshold-based devices. Quantization o... 详细信息
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Quantum entanglement of K+ ions, multiple channel states and the role of noise in the brain
Quantum entanglement of K<SUP>+</SUP> ions, multiple channel...
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Conference on Fluctuations and Noise in Biological, Biophysical, and Biomedical Systems III
作者: Bernroider, G Roy, S Salzburg Univ FB Org Biol Neurodynam & Neurosignaling Unit A-5020 Salzburg Austria
We propose a quantum information scheme that builds on the interference properties of entangled ion states that are transiently confined by local potentials within the permeation path of voltage-gated, ion-conducting ... 详细信息
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Optimal stimulus coding by neural populations using rate codes
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JOURNAL OF COMPUTATIONAL NEUROSCIENCE 2004年 第2期16卷 129-138页
作者: Johnson, DH Ray, W Rice Univ Dept Elect & Comp Engn Houston TX 77251 USA
We create a framework based on Fisher information for determining the most effective population coding scheme for representing a continuous-valued stimulus attribute over its entire range. Using this scheme, we derive... 详细信息
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neural coding in the cat retina
Neural coding in the cat retina
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24th Annual International Conference of the Engineering-in-Medicine-and-Biology-Society/Annual Fall Meeting of the Biomedical-Engineering-Society (EMBS 2002 BMES)
作者: Troy, JB Northwestern Univ Dept Biomed Engn Evanston IL 60208 USA
The output of the cat retina is conveyed to the brain by the axons of similar to170,000 retinal ganglion cells that together constitute an optic nerve. Ganglion cells come in a number of varieties with the result that... 详细信息
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A unifying theory on the relationship between spike trains, EEG, and ERP based on the noise shaping/predictive neural coding hypothesis
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BIOSYSTEMS 2002年 第1-3期67卷 245-257页
作者: Shin, J RIKEN Brain Sci Inst Wako Saitama 35101 Japan CALTECH Div Biol Pasadena CA 91125 USA Korea Adv Inst Sci & Technol Seoul South Korea
Cracking the neural code has long been a central issue in neuroscience. However, it has been proved difficult because there logically exist an infinite number of other models and interpretations that could account for... 详细信息
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Review: neural coding and the Basic Law of Psychophysics
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The Neuroscientist 2002年 第2期8卷 111 - 121页
作者: Kenneth O. Johnson Steven S. Hsiao Takashi Yoshioka Krieger Mind/Brain Institute and Neuroscience Department Johns Hopkins University Baltimore Maryland Krieger Mind/Brain Institute and Neuroscience Department Johns Hopkins University Baltimore Maryland
There have been three main ideas about the basic law of psychophysics. In 1860, Fechner used Weber’s law to infer that the subjective sense of intensity is related to the physical intensity of a stimulus by a logarit... 详细信息
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Comparison of coding capabilities of Type I and Type II neurons
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JOURNAL OF COMPUTATIONAL NEUROSCIENCE 2004年 第3期16卷 299-313页
作者: St-Hilaire, M Longtin, A Univ Ottawa Dept Phys Ottawa ON K1N 6N5 Canada
We consider the dependence of information transfer by neurons on the Type I vs. Type II classification of their dynamics. Our computational study is based on Type I and II implementations of the Morris-Lecar model. It... 详细信息
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A normative model of attention: receptive field modulation
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NEUROCOMPUTING 2004年 58卷 613-618页
作者: Jaramillo, S Pearlmutter, BA Natl Univ Ireland Hamilton Inst Maynooth Kildare Ireland
When sensory stimuli are encoded in a lossy fashion for efficient transmission, there are necessarily tradeoffs between the represented fidelity of various aspects of the stimuli. In the model of attention presented h... 详细信息
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Finding neural codes using random projections
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NEUROCOMPUTING 2004年 58卷 19-25页
作者: Mumey, B Sarkar, A Gedeon, T Dimitrov, A Miller, J Montana State Univ Dept Comp Sci Bozeman MT 59717 USA Montana State Univ Dept Cell Biol & Neurosci Bozeman MT 59717 USA Montana State Univ Dept Math Sci Bozeman MT 59717 USA
A powerful approach to studying how information is transmitted in basic neural systems is based on finding stimulus-response classes that optimize the mutual information shared between the classes. The problem can be ... 详细信息
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Searching for optimal sensory signals:: Iterative stimulus reconstruction in closed-loop experiments
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JOURNAL OF COMPUTATIONAL NEUROSCIENCE 2004年 第1期17卷 47-56页
作者: Edin, F Machens, CK Schütze, H Herz, AVM Humboldt Univ Inst Theoret Biol D-10115 Berlin Germany
Shaped by evolutionary processes, sensory systems often represent behaviorally relevant stimuli with higher fidelity than other stimuli. The stimulus dependence of neural reliability could therefore provide an importa... 详细信息
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