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Kim, Seong Gi
뇌과학 이미징 연구단
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Time-dependent spatial specificity of high-resolution fMRI: insights into mesoscopic neurovascular coupling

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Title
Time-dependent spatial specificity of high-resolution fMRI: insights into mesoscopic neurovascular coupling
Author(s)
Mitsuhiro Fukuda; Alexander J. Poplawsky; Seong-Gi Kim
Publication Date
2021-01
Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, v.376, no.1815
Publisher
ROYAL SOC
Abstract
© 2020 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License. High-resolution functional magnetic resonance imaging (fMRI) is becoming increasingly popular because of the growing availability of ultra-high magnetic fields which are capable of improving sensitivity and spatial resolution. However, it is debatable whether increased spatial resolutions for haemodynamic-based techniques, like fMRI, can accurately detect the true location of neuronal activity. We have addressed this issue in functional columns and layers of animals with haemoglobin-based optical imaging and different fMRI contrasts, such as blood oxygenation level-dependent, cerebral blood flow and cerebral blood volume fMRI. In this review, we describe empirical evidence primarily from our own studies on how well these fMRI signals are spatially specific to the neuronally active site and discuss insights into neurovascular coupling at the mesoscale. This article is part of the theme issue 'Key relationships between non-invasive functional neuroimaging and the underlying neuronal activity'
URI
https://pr.ibs.re.kr/handle/8788114/7499
DOI
10.1098/rstb.2019.0623
ISSN
0962-8436
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > 1. Journal Papers (저널논문)
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