AIMC Topic: Visual Cortex
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Factorized visual representations in the primate visual system and deep neural networks.
eLife
Jul 5, 2024
Object classification has been proposed as a principal objective of the primate ventral visual stream and has been used as an optimization target for deep neural network models (DNNs) of the visual system. However, visual brain areas represent many d...
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...
How well do models of visual cortex generalize to out of distribution samples?
PLoS computational biology
May 31, 2024
Unit activity in particular deep neural networks (DNNs) are remarkably similar to the neuronal population responses to static images along the primate ventral visual cortex. Linear combinations of DNN unit activities are widely used to build predicti...
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...
Diverse task-driven modeling of macaque V4 reveals functional specialization towards semantic tasks.
PLoS computational biology
May 23, 2024
Responses to natural stimuli in area V4-a mid-level area of the visual ventral stream-are well predicted by features from convolutional neural networks (CNNs) trained on image classification. This result has been taken as evidence for the functional ...
A unifying framework for functional organization in early and higher ventral visual cortex.
Neuron
May 10, 2024
A key feature of cortical systems is functional organization: the arrangement of functionally distinct neurons in characteristic spatial patterns. However, the principles underlying the emergence of functional organization in the cortex are poorly un...
Recurrent neural networks that learn multi-step visual routines with reinforcement learning.
PLoS computational biology
Apr 29, 2024
Many cognitive problems can be decomposed into series of subproblems that are solved sequentially by the brain. When subproblems are solved, relevant intermediate results need to be stored by neurons and propagated to the next subproblem, until the o...
An analysis of information segregation in parallel streams of a multi-stream convolutional neural network.
Scientific reports
Apr 20, 2024
Visual information is processed in hierarchically organized parallel streams in the primate brain. In the present study, information segregation in parallel streams was examined by constructing a convolutional neural network with parallel architectur...
A neurocomputational model of decision and confidence in object recognition task.
Neural networks : the official journal of the International Neural Network Society
Apr 12, 2024
How does the brain process natural visual stimuli to make a decision? Imagine driving through fog. An object looms ahead. What do you do? This decision requires not only identifying the object but also choosing an action based on your decision confid...
Emergence of Emotion Selectivity in Deep Neural Networks Trained to Recognize Visual Objects.
PLoS computational biology
Mar 28, 2024
Recent neuroimaging studies have shown that the visual cortex plays an important role in representing the affective significance of visual input. The origin of these affect-specific visual representations is debated: they are intrinsic to the visual ...
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