AIMC Topic: Primary Visual Cortex

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A simplified minimodel of visual cortical neurons.

Nature communications Jul 1, 2025
Artificial neural networks (ANNs) have been shown to predict neural responses in primary visual cortex (V1) better than classical models. However, this performance often comes at the expense of simplicity and interpretability. Here we introduce a new...
Animals Mice Neural Networks, Computer Photic Stimulation Visual Cortex Primary Visual Cortex Models, Neurological Neurons
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Biological direct-shortcut deep residual learning for sparse visual processing.

Scientific reports Jun 18, 2024
We show, based on the following three grounds, that the primary visual cortex (V1) is a biological direct-shortcut deep residual learning neural network (ResNet) for sparse visual processing: (1) We first highlight that Gabor-like sets of basis funct...
Visual Perception Visual Cortex Primary Visual Cortex Deep Learning Models, Neurological Humans Neural Networks, Computer
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Estimating receptive fields of simple and complex cells in early visual cortex: A convolutional neural network model with parameterized rectification.

PLoS computational biology May 31, 2024
Neurons in the primary visual cortex respond selectively to simple features of visual stimuli, such as orientation and spatial frequency. Simple cells, which have phase-sensitive responses, can be modeled by a single receptive field filter in a linea...
Neural Networks, Computer Visual Fields Cats Visual Cortex Models, Neurological Photic Stimulation Primary Visual Cortex Animals Neurons Computational Biology
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Predicting Single Neuron Responses of the Primary Visual Cortex with Deep Learning Model.

Advanced science (Weinheim, Baden-Wurttemberg, Germany) Feb 13, 2024
Modeling neuron responses to stimuli can shed light on next-generation technologies such as brain-chip interfaces. Furthermore, high-performing models can serve to help formulate hypotheses and reveal the mechanisms underlying neural responses. Here ...
Visual Perception Mice Visual Cortex Neurons Primary Visual Cortex Animals Deep Learning
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Species-specific wiring of cortical circuits for small-world networks in the primary visual cortex.

PLoS computational biology Aug 4, 2023
Long-range horizontal connections (LRCs) are conspicuous anatomical structures in the primary visual cortex (V1) of mammals, yet their detailed functions in relation to visual processing are not fully understood. Here, we show that LRCs are key compo...
Neural Networks, Computer Brain Mammals Visual Perception Computer Simulation Primary Visual Cortex Animals
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Increasing neural network robustness improves match to macaque V1 eigenspectrum, spatial frequency preference and predictivity.

PLoS computational biology Jan 7, 2022
Task-optimized convolutional neural networks (CNNs) show striking similarities to the ventral visual stream. However, human-imperceptible image perturbations can cause a CNN to make incorrect predictions. Here we provide insight into this brittleness...
Macaca fascicularis Primary Visual Cortex Mice Computational Biology Models, Neurological Algorithms Humans Neurons Animals Neural Networks, Computer
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Distributed Synaptic Connection Strength Changes Dynamics in a Population Firing Rate Model in Response to Continuous External Stimuli.

Neural computation Apr 17, 2025
Neural network complexity allows for diverse neuronal population dynamics and realizes higherorder brain functions such as cognition and memory. Complexity is enhanced through chemical synapses with exponentially decaying conductance and greater vari...
Humans Primary Visual Cortex Models, Neurological Action Potentials Synapses Animals Neural Networks, Computer Nerve Net Neurons Neuronal Plasticity Computer Simulation
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Convolutional neural network models applied to neuronal responses in macaque V1 reveal limited nonlinear processing.

Journal of vision Jun 3, 2024
Computational models of the primary visual cortex (V1) have suggested that V1 neurons behave like Gabor filters followed by simple nonlinearities. However, recent work employing convolutional neural network (CNN) models has suggested that V1 relies o...
Neurons Nonlinear Dynamics Animals Models, Neurological Macaca Primary Visual Cortex Photic Stimulation Visual Cortex Neural Networks, Computer
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