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q-bio.NC2026
Toward a mechanistic understanding of inference in visual cortex and diffusion models
Zeyu Yun, Alexander Belsten, Dasheng Bi +3
We describe a model of perceptual inference in primary visual cortex (V1) equivalent to a minimal diffusion model whose function can be readily understood from its parameters. The…
q-bio.NC2026
Emergence of unique hues from sparse coding of color in natural scenes
Alexander Belsten, E. Paxon Frady, Bruno A. Olshausen
Our subjective experience of color is typically described by abstract properties such as hue, saturation, and brightness that do not directly correspond to sensory signals arising…
q-bio.NC2022
Cross-Frequency Coupling Increases Memory Capacity in Oscillatory Neural Networks
Connor Bybee, Alexander Belsten, Friedrich T. Sommer
An open problem in neuroscience is to explain the functional role of oscillations in neural networks, contributing, for example, to perception, attention, and memory. Cross-frequen…