Results 31 to 40 of about 10,032 (253)

Effect of hemodynamic variability on Granger causality analysis of fMRI [PDF]

NeuroImage, 2010
In this work, we investigated the effect of the regional variability of the hemodynamic response on the sensitivity of Granger causality (GC) analysis of functional magnetic resonance imaging (fMRI) data to neuronal causal influences. We simulated fMRI data by convolving a standard canonical hemodynamic response function (HRF) with local field ...
Gopikrishna Deshpande, Krish Sathian, Xiaoping Hu 0001   +2 more
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Granger causality in the frequency domain: derivation and applications [PDF]

Revista Brasileira de Ensino de Física
Physicists are starting to work in areas where noisy signal analysis is required. In these fields, such as Economics, Neuroscience, and Physics, the notion of causality should be interpreted as a statistical measure.
Vinicius Lima, Fernanda Jaiara Dellajustina, Renan O. Shimoura, Mauricio Girardi-Schappo, Nilton L. Kamiji, Rodrigo F. O. Pena, Antonio C. Roque   +6 more
doaj   +2 more sources

Increasing fMRI sampling rate improves Granger causality estimates. [PDF]

PLoS ONE, 2014
Estimation of causal interactions between brain areas is necessary for elucidating large-scale functional brain networks underlying behavior and cognition. Granger causality analysis of time series data can quantitatively estimate directional information
Fa-Hsuan Lin, Jyrki Ahveninen, Tommi Raij, Thomas Witzel, Ying-Hua Chu, Iiro P Jääskeläinen, Kevin Wen-Kai Tsai, Wen-Jui Kuo, John W Belliveau   +8 more
doaj   +1 more source

Granger Causality, Exogeneity, Cointegration, and Economic Policy Analysis [PDF]

SSRN Electronic Journal, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Davide Pettenuzzo, Halbert White
openaire   +2 more sources

Power Allocation in 5G Wireless Communication

IEEE Access, 2019
Granger Causality analysis originated in the field of econometrics is used as a time series analysis tool based on vector auto-regression, and its phased generalized transfer entropy (TE), which is based on conditional co-information in information ...
Zhangliang Chen, Qilian Liang
doaj   +1 more source

Economic policy and confidence of economic agents – a causal relationship?

Review of Economic Perspectives, 2020
The purpose of this paper is to study whether innovations in monetary and fiscal policy are a leading indicator of future business and consumer confidence and reverse applying the panel Granger causality analysis to two periods in the history of the euro
Dajčman Silvo
doaj   +1 more source

The cost of aging: Economic growth perspectives for Europe.

PLoS ONE, 2023
This study explores the causal relationship between the economy and the elderly population in 15 European countries. The economy was measured by the Per Capita Gross Domestic Product growth rate, while the population aged above 65 as a percentage of the ...
Thaveesha Jayawardhana, Ruwan Jayathilaka, Thamasha Nimnadi, Sachini Anuththara, Ridhmi Karadanaarachchi, Kethaka Galappaththi, Thanuja Dharmasena   +6 more
doaj   +1 more source

Causality analysis between climatic factors and dengue fever using the Granger causality [PDF]

2016 IEEE RIVF International Conference on Computing & Communication Technologies, Research, Innovation, and Vision for the Future (RIVF), 2016
Dengue is a mosquito-bome tropical disease caused by one of the four serotypes of dengue virus. There are about 2,5 billion people living in endemic areas. The potential influence of environmental and climatic factors on the transmission of mosquito-bome diseases are expected in many situations but the exact real influences of climatic variables remain
Pham, Nguyen Hoang, Zucker, Jean Daniel, Choisy, Marc, Tuong Vinh, Ho   +3 more
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The Relationships among Cryptocurrencies: A Granger Causality Analysis

iRASD Journal of Economics, 2022
The topic of Cryptocurrencies is emerging rapidly. Many investors and public want to invest in digital currencies. So, the nature of cryptocurrency and its theoretical understanding is essential currently. The aim of this research is to study major Cryptocurrencies having capitalization above $1bn and construct directed networks.
Nadir Khan, Naila Mushtaq, Muhammad Zohair Durrani, S M Nabeel ul Haq, Babar Ijaz   +4 more
openaire   +1 more source

Statistical Analysis of Single-Trial Granger Causality Spectra [PDF]

Computational and Mathematical Methods in Medicine, 2012
Granger causality analysis is becoming central for the analysis of interactions between neural populations and oscillatory networks. However, it is currently unclear whether single-trial estimates of Granger causality spectra can be used reliably to assess directional influence.
openaire   +2 more sources