Decoding the brain: From neural representations to mechanistic models

MW Mathis, AP Rotondo, EF Chang, AS Tolias… - Cell, 2024‏ - cell.com
A central principle in neuroscience is that neurons within the brain act in concert to produce
perception, cognition, and adaptive behavior. Neurons are organized into specialized brain …

Energy guided diffusion for generating neurally exciting images

P Pierzchlewicz, K Willeke, A Nix… - Advances in …, 2023‏ - proceedings.neurips.cc
In recent years, most exciting inputs (MEIs) synthesized from encoding models of neuronal
activity have become an established method for studying tuning properties of biological and …

Harmonics of learning: Universal fourier features emerge in invariant networks

GL Marchetti, CJ Hillar, D Kragic… - The Thirty Seventh …, 2024‏ - proceedings.mlr.press
In this work, we formally prove that, under certain conditions, if a neural network is invariant
to a finite group then its weights recover the Fourier transform on that group. This provides a …

A chromatic feature detector in the retina signals visual context changes

L Höfling, KP Szatko, C Behrens, Y Deng, Y Qiu… - Elife, 2024‏ - elifesciences.org
The retina transforms patterns of light into visual feature representations supporting
behaviour. These representations are distributed across various types of retinal ganglion …

Pattern completion and disruption characterize contextual modulation in the visual cortex

J Fu, S Shrinivasan, L Baroni, Z Ding, PG Fahey… - …, 2024‏ - pmc.ncbi.nlm.nih.gov
Vision is fundamentally context-dependent, with neuronal responses influenced not just by
local features but also by surrounding contextual information. In the visual cortex, studies …

Diverse task-driven modeling of macaque V4 reveals functional specialization towards semantic tasks

SA Cadena, KF Willeke, K Restivo… - PLOS Computational …, 2024‏ - journals.plos.org
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 …

Stable, chronic in-vivo recordings from a fully wireless subdural-contained 65,536-electrode brain-computer interface device

T Jung, N Zeng, JD Fabbri, G Eichler, Z Li, K Willeke… - bioRxiv, 2024‏ - biorxiv.org
Minimally invasive, high-bandwidth brain-computer-interface (BCI) devices can revolutionize
human applications. With orders-of-magnitude improvements in volumetric efficiency over …

The feature landscape of visual cortex

R Tong, R da Silva, D Lin, A Ghosh, J Wilsenach… - bioRxiv, 2023‏ - biorxiv.org
Understanding computations in the visual system requires a characterization of the distinct
feature preferences of neurons in different visual cortical areas. However, we know little …

Heterogeneous orientation tuning in the primary visual cortex of mice diverges from Gabor-like receptive fields in primates

J Fu, PA Pierzchlewicz, KF Willeke, M Bashiri… - Cell reports, 2024‏ - cell.com
A key feature of neurons in the primary visual cortex (V1) of primates is their orientation
selectivity. Recent studies using deep neural network models showed that the most exciting …

Taking the neural sampling code very seriously: A data-driven approach for evaluating generative models of the visual system

S Shrinivasan, KK Lurz, K Restivo… - Advances in …, 2023‏ - proceedings.neurips.cc
Prevailing theories of perception hypothesize that the brain implements perception via
Bayesian inference in a generative model of the world. One prominent theory, the Neural …