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Cited by 594

The DOI matches its Crossref record; 54 of the 54 references it cites were found in a registry or an index.

High-dimensional geometry of population responses in visual cortex

Open access
Stringer, Carsen, Pachitariu, Marius, Steinmetz, Nicholas, Carandini, Matteo, Harris, Kenneth D.·2019·Nature

Abstract

A neuronal population encodes information most efficiently when its stimulus responses are high-dimensional and uncorrelated, and most robustly when they are lower-dimensional and correlated. Here we analysed the dimensionality of the encoding of natural images by large populations of neurons in the visual cortex of awake mice. The evoked population activity was high-dimensional, and correlations obeyed an unexpected power law: the nth principal component variance scaled as 1/n. This scaling was not inherited from the power law spectrum of natural images, because it persisted after stimulus whitening. We proved mathematically that if the variance spectrum was to decay more slowly then the population code could not be smooth, allowing small changes in input to dominate population activity. The theory also predicts larger power-law exponents for lower-dimensional stimulus ensembles, which we validated experimentally. These results suggest that coding smoothness may represent a fundamental constraint that determines correlations in neural population codes. Analysis of the encoding of natural images by very large populations of neurons in the visual cortex of awake mice characterizes the high dimensional geometry of the neural responses.

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Metadata

Authors
Stringer, C., Pachitariu, M., Steinmetz, N., Carandini, M., & Harris, K. D.
Venue
Nature
Published
2019-06-26
Volume
571
Issue
7765
Pages
361-365
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2954124637
Cited by
594
References
54
FWCI
33.80
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: High-dimensional geometry of population responses in visual cortex. https://app.cochat.ai/papers/10.1038/s41586-019-1346-5
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Stringer, C., Pachitariu, M., Steinmetz, N., Carandini, M., & Harris, K. D. (2019). High-dimensional geometry of population responses in visual cortex. Nature. https://doi.org/10.1038/s41586-019-1346-5

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