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Local opposite orientation preferences in V1

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Local opposite orientation preferences in V1 : fMRI sensitivity to fine-grained pattern information. / Alink, Arjen; Walther, Alexander; Krugliak, Alexandra; Kriegeskorte, Nikolaus.

In: SCI REP-UK, Vol. 7, No. 1, 02.08.2017, p. 7128.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Alink, A, Walther, A, Krugliak, A & Kriegeskorte, N 2017, 'Local opposite orientation preferences in V1: fMRI sensitivity to fine-grained pattern information', SCI REP-UK, vol. 7, no. 1, pp. 7128. https://doi.org/10.1038/s41598-017-07036-8

APA

Alink, A., Walther, A., Krugliak, A., & Kriegeskorte, N. (2017). Local opposite orientation preferences in V1: fMRI sensitivity to fine-grained pattern information. SCI REP-UK, 7(1), 7128. https://doi.org/10.1038/s41598-017-07036-8

Vancouver

Alink A, Walther A, Krugliak A, Kriegeskorte N. Local opposite orientation preferences in V1: fMRI sensitivity to fine-grained pattern information. SCI REP-UK. 2017 Aug 2;7(1):7128. https://doi.org/10.1038/s41598-017-07036-8

Bibtex

@article{5b2b6a269d904845a40974c41025fbde,
title = "Local opposite orientation preferences in V1: fMRI sensitivity to fine-grained pattern information",
abstract = "The orientation of a visual grating can be decoded from human primary visual cortex (V1) using functional magnetic resonance imaging (fMRI) at conventional resolutions (2-3 mm voxel width, 3T scanner). It is unclear to what extent this information originates from different spatial scales of neuronal selectivity, ranging from orientation columns to global areal maps. According to the global-areal-map account, fMRI orientation decoding relies exclusively on fMRI voxels in V1 exhibiting a radial or vertical preference. Here we show, by contrast, that 2-mm isotropic voxels in a small patch of V1 within a quarterfield representation exhibit reliable opposite selectivities. Sets of voxels with opposite selectivities are locally intermingled and each set can support orientation decoding. This indicates that global areal maps cannot fully account for orientation information in fMRI and demonstrates that fMRI also reflects fine-grained patterns of neuronal selectivity.",
keywords = "Journal Article",
author = "Arjen Alink and Alexander Walther and Alexandra Krugliak and Nikolaus Kriegeskorte",
year = "2017",
month = aug,
day = "2",
doi = "10.1038/s41598-017-07036-8",
language = "English",
volume = "7",
pages = "7128",
journal = "SCI REP-UK",
issn = "2045-2322",
publisher = "NATURE PUBLISHING GROUP",
number = "1",

}

RIS

TY - JOUR

T1 - Local opposite orientation preferences in V1

T2 - fMRI sensitivity to fine-grained pattern information

AU - Alink, Arjen

AU - Walther, Alexander

AU - Krugliak, Alexandra

AU - Kriegeskorte, Nikolaus

PY - 2017/8/2

Y1 - 2017/8/2

N2 - The orientation of a visual grating can be decoded from human primary visual cortex (V1) using functional magnetic resonance imaging (fMRI) at conventional resolutions (2-3 mm voxel width, 3T scanner). It is unclear to what extent this information originates from different spatial scales of neuronal selectivity, ranging from orientation columns to global areal maps. According to the global-areal-map account, fMRI orientation decoding relies exclusively on fMRI voxels in V1 exhibiting a radial or vertical preference. Here we show, by contrast, that 2-mm isotropic voxels in a small patch of V1 within a quarterfield representation exhibit reliable opposite selectivities. Sets of voxels with opposite selectivities are locally intermingled and each set can support orientation decoding. This indicates that global areal maps cannot fully account for orientation information in fMRI and demonstrates that fMRI also reflects fine-grained patterns of neuronal selectivity.

AB - The orientation of a visual grating can be decoded from human primary visual cortex (V1) using functional magnetic resonance imaging (fMRI) at conventional resolutions (2-3 mm voxel width, 3T scanner). It is unclear to what extent this information originates from different spatial scales of neuronal selectivity, ranging from orientation columns to global areal maps. According to the global-areal-map account, fMRI orientation decoding relies exclusively on fMRI voxels in V1 exhibiting a radial or vertical preference. Here we show, by contrast, that 2-mm isotropic voxels in a small patch of V1 within a quarterfield representation exhibit reliable opposite selectivities. Sets of voxels with opposite selectivities are locally intermingled and each set can support orientation decoding. This indicates that global areal maps cannot fully account for orientation information in fMRI and demonstrates that fMRI also reflects fine-grained patterns of neuronal selectivity.

KW - Journal Article

U2 - 10.1038/s41598-017-07036-8

DO - 10.1038/s41598-017-07036-8

M3 - SCORING: Journal article

C2 - 28769042

VL - 7

SP - 7128

JO - SCI REP-UK

JF - SCI REP-UK

SN - 2045-2322

IS - 1

ER -