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IJON
2006
100views more  IJON 2006»
13 years 11 months ago
Analyzing the robustness of redundant population codes in sensory and feature extraction systems
Sensory systems often use groups of redundant neurons to represent stimulus information both during transduction and population coding of features. This redundancy makes the syste...
Christopher J. Rozell, Don H. Johnson
IJON
2006
189views more  IJON 2006»
13 years 11 months ago
Storing and restoring visual input with collaborative rank coding and associative memory
Associative memory in cortical circuits has been held as a major mechanism for content-addressable memory. Hebbian synapses implement associative memory efficiently when storing s...
Martin Rehn, Friedrich T. Sommer
IJON
2006
68views more  IJON 2006»
13 years 11 months ago
Dendritic cable with active spines: A modelling study in the spike-diffuse-spike framework
The spike-diffuse-spike (SDS) model describes a passive dendritic tree with active dendritic spines. Spine-head dynamics is modelled with a simple integrate-and-fire process, whil...
Yulia Timofeeva, Gabriel J. Lord, Stephen Coombes
IJON
2006
84views more  IJON 2006»
13 years 11 months ago
Dynamic regulation of spike-timing dependent plasticity in electrosensory processing
This study investigates the control of spike-timing dependent plasticity (STDP) by regulation of the dendritic spike threshold of the postsynaptic neuron. The control of synaptic ...
Patrick D. Roberts, Gerardo Lafferriere, Nathaniel...
IJON
2006
127views more  IJON 2006»
13 years 11 months ago
Sparse ICA via cluster-wise PCA
In this paper, it is shown that Independent Component Analysis (ICA) of sparse signals (sparse ICA) can be seen as a cluster-wise Principal Component Analysis (PCA). Consequently,...
Massoud Babaie-Zadeh, Christian Jutten, Ali Mansou...
IJON
2006
76views more  IJON 2006»
13 years 11 months ago
Joint maps for orientation, eye, and direction preference in a self-organizing model of V1
Primary visual cortex (V1) contains overlaid feature maps for orientation (OR), motion direction selectivity (DR), and ocular dominance (OD). Neurons in these maps are connected l...
James A. Bednar, Risto Miikkulainen
IJON
2006
132views more  IJON 2006»
13 years 11 months ago
A binary neural decision table classifier
In this paper, we introduce a neural network -based decision table algorithm. We focus on the implementation details of the decision table algorithm when it is constructed using t...
Victoria J. Hodge, Simon O'Keefe, Jim Austin
IJON
2006
77views more  IJON 2006»
13 years 11 months ago
Synchronization effects using a piecewise linear map-based spiking-bursting neuron model
Models of neurons based on iterative maps allows the simulation of big networks of coupled neurons without loss of biophysical properties such as spiking, bursting or tonic bursti...
Carlos Aguirre, Doris Campos, Pedro Pascual, Eduar...
IJON
2006
63views more  IJON 2006»
13 years 11 months ago
Reward-biased probabilistic decision-making: Mean-field predictions and spiking simulations
In this work we study the basic competitive and cooperative mechanisms of neural activity in the context of a two-alternative freechoice eye-movement task, as a function of the ex...
Daniel Martí, Gustavo Deco, Paolo Del Giudi...