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Here, we provide an overview of how visual information is processed along the ventral visual cortex in the human brain. We discuss how neurophysiological recordings in macaque monkeys and in humans can help us understand the computations performed by visual cortex.
- How does the brain solve visual object recognition? - PMC
Mounting evidence suggests that “core object recognition,”...
- How does the brain solve visual object recognition? - PMC
Mounting evidence suggests that “core object recognition,” the ability to rapidly recognize objects despite substantial appearance variation, is solved in the brain via a cascade of reflexive, largely feedforward computations that culminate in a powerful neuronal representation in the inferior temporal cortex.
We also ran tests on the model to see what would happen if we “silenced” some of these category-selective groups. Disrupting, say, the face-selective units in the model reduced its ability to recognize categories that rely on facial features, echoing what we see in humans with brain injuries to specific visual areas.
9 wrz 2024 · To test how well the core object dimensions predict brain responses in different parts of the visual system, we fit them to the fMRI single-trial response estimates using ordinary least squares...
13 sie 2021 · The human visual cortex enables visual perception through a cascade of hierarchical computations in cortical regions with distinct functionalities. Here, we introduce an AI-driven approach to discover the functional mapping of the visual cortex. We related human brain responses to scene images measured with functional MRI (fMRI) systematically ...
26 kwi 2021 · A number of recent studies aimed to test this hypothesis in the human visual cortex by measuring GABA from the early visual cortex or extra-striate regions using MRS. Together, these have presented mixed evidence supporting a role of neurochemistry in surround suppression.
The advent of brain imaging, initially structural magnetic resonance imaging (MRI) and positron emission tomography (PET) but closely followed by functional MRI (fMRI), has allowed visualization of the brain activity that may underlie blindsight and unconscious vision.
