Results 101 to 110 of about 475,817 (388)

Encoding and decoding in fMRI [PDF]

NeuroImage, 2011
Over the past decade fMRI researchers have developed increasingly sensitive techniques for analyzing the information represented in BOLD activity. The most popular of these techniques is linear classification, a simple technique for decoding information about experimental stimuli or tasks from patterns of activity across an array of voxels.
Thomas Naselaris, Jack L. Gallant, Jack L. Gallant, Kendrick Kay, Shinji Nishimoto   +4 more
openaire   +3 more sources

Oxytocin Reduces Subjective Fear in Naturalistic Social Contexts via Enhancing Top‐Down Middle Cingulate Amygdala Regulation and Brain‐Wide Fear Representations

Advanced Science, EarlyView.
This double‐blind, placebo‐controlled study demonstrates that intranasal oxytocin reduces subjective fear in immersive, naturalistic social (but not non‐social) contexts. Concomitant fMRI reveals that oxytocin enhances middle cingulate activity and amygdala connectivity while it modulates network‐level connectivity and attenuates reactivity of a brain ...
Kun Fu, Shuyue Xu, Zheng Zhang, Dan Liu, Ting Xu, Yuan Zhang, Feng Zhou, Xiaodong Zhang, Chunmei Lan, Junjie Wang, Lan Wang, Jingxian He, Keith M Kendrick, Bharat Biswal, Dezhong Yao, Zhen Liang, Weihua Zhao, Benjamin Becker   +17 more
wiley   +1 more source

Disentangling causal webs in the brain using functional Magnetic Resonance Imaging: A review of current approaches [PDF]

, 2019
In the past two decades, functional Magnetic Resonance Imaging has been used to relate neuronal network activity to cognitive processing and behaviour.
Anderson, Paul, Bielczyk, Natalia Z., Buitelaar, Jan K., Glennon, Jeffrey C., Uithol, Sebo, van Mourik, Tim   +5 more
core   +3 more sources

Neuroimaging With Calibrated fMRI [PDF]

Stroke, 2004
The conventional functional MRI (fMRI) map offers information indirectly about localized changes in neuronal activity because it reflects changes in blood oxygenation, not actual neuronal activity. To provide a neurophysiological basis of fMRI, researchers have used electrophysiology to show correlations of fMRI and electric signals ...
openaire   +2 more sources

A Replicable and Generalizable Neuroimaging‐Based Indicator of Pain Sensitivity Across Individuals

Advanced Science, EarlyView.
Humans differ in their sensitivity to pain. With six large and diverse fMRI datasets (total N = 1046), this study finds that such individual differences in pain sensitivity can be tracked by fMRI responses to painful stimuli. A highly generalizable machine learning model is further built to predict pain sensitivity across all datasets and analgesic ...
Li‐Bo Zhang, Xue‐Jing Lu, Hui‐Juan Zhang, Zhao‐Xing Wei, Ya‐Zhuo Kong, Yi‐Heng Tu, Gian Domenico Iannetti, Li Hu   +7 more
wiley   +1 more source

Seeing in the dark: High-order visual functions under scotopic conditions

iScience
Summary: It is unknown how and to what degree people function visually in almost complete darkness, where only rod photoreceptors are active (scotopic conditions). To explore this, we first tested scotopic acuity and crowding.
Ayelet McKyton, Deena Elul, Netta Levin
doaj   +1 more source

NARRATIVE ECONOMICS AND NEUROECONOMICS

Финансы: теория и практика, 2018
This article is a reworked lecture I have given at theFinancialUniversityunder the Government of theRussian FederationinMoscow. This lecture has considered the epidemiology of narratives relevant to economic fluctuations (outcomes), allowing them to “go ...
R. I. Shiller
doaj   +1 more source

The PRESTO technique for fMRI [PDF]

NeuroImage, 2012
In the early days of BOLD fMRI, the acquisition of T(2)(*) weighted data was greatly facilitated by rapid scan techniques such as EPI. The latter, however, was only available on a few MRI systems that were equipped with specialized hardware that allowed rapid switching of the imaging gradients.
N.F. Ramsey, Guoying Liu, Chrit T. W. Moonen, J.H. Duyn, P. van Gelderen   +4 more
openaire   +2 more sources

Spatiotemporal Characterization of the Functional MRI Latency Structure with Respect to Neural Signaling and Brain Hierarchy

Advanced Science, EarlyView.
Resting‐state fMRI captures intrinsic brain activity, yet the physical significance of latency structures remains unclear. In this study, the spatiotemporal properties of fMRI‐derived latency structures are examined by linking them to biophysical model‐based neural functions, intrinsic neural timescales, and functional gradients.
Hyoungshin Choi, Yeongjun Park, Jong‐eun Lee, Sunghun Kim, Bo‐yong Park, Hyunjin Park   +5 more
wiley   +1 more source

fMRI in the public eye [PDF]

Nature Reviews Neuroscience, 2005
The wide dissemination and expanding applications of functional MRI have not escaped the attention of the media or discussion in the wider public arena. From the bench to the bedside, this technology has introduced substantial ethical challenges. Are the boundaries of what it can and cannot achieve being communicated to the public?
Eric Racine, Judy Illes, Ofek Bar-Ilan, Ofek Bar-Ilan   +3 more
openaire   +3 more sources